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UniProtKB - Q6VAB6 (KSR2_HUMAN)

Entry version 136 (16 Oct 2019)
Sequence version 2 (29 May 2007)
Previous versions | rss
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Protein

Kinase suppressor of Ras 2

Gene

KSR2

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Location-regulated scaffold connecting MEK to RAF. Has very low protein kinase activity and can phosphorylate MAP2K1 at several Ser and Thr residues with very low efficiency (in vitro). Acts as MAP2K1/MEK1-dependent allosteric activator of BRAF; upon binding to MAP2K1/MEK1, dimerizes with BRAF and promotes BRAF-mediated phosphorylation of MAP2K1/MEK1 (PubMed:29433126). Interaction with BRAF enhances KSR2-mediated phosphorylation of MAP2K1 (in vitro). Blocks MAP3K8 kinase activity and MAP3K8-mediated signaling. Acts as a negative regulator of MAP3K3-mediated activation of ERK, JNK and NF-kappa-B pathways, inhibiting MAP3K3-mediated interleukin-8 production.4 Publications

Caution

KSR2 binds ATP and has very low in vitro protein kinase activity; the physiological relevance of this activity is unknown. KSR2 is proposed to be in an inactive conformation by itself or in complex with MAP2K1. Interaction with BRAF is proposed to induce a conformation change that increases the low intrinsic kinase activity (PubMed:21441910).1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Kinase activity is inhibited by ASC24.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi413Zinc 1By similarity1
Metal bindingi425Zinc 2By similarity1
Metal bindingi428Zinc 2By similarity1
Metal bindingi438Zinc 1By similarity1
Metal bindingi441Zinc 1By similarity1
Metal bindingi446Zinc 2By similarity1
Metal bindingi449Zinc 2By similarity1
Metal bindingi456Zinc 1By similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei786Proton donor/acceptor1 Publication1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei788ATP1 Publication1
Binding sitei803ATP1 Publication1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section specifies the position(s) and type(s) of zinc fingers within the protein.<p><a href='/help/zn_fing' target='_top'>More...</a></p>Zinc fingeri412 – 456Phorbol-ester/DAG-typePROSITE-ProRule annotationAdd BLAST45
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi672 – 680ATPPROSITE-ProRule annotation1 Publication9

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionKinase, Serine/threonine-protein kinase, Transferase
LigandATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		2.7.11.25 2681

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-5674135 MAP2K and MAPK activation
R-HSA-6802946 Signaling by moderate kinase activity BRAF mutants
R-HSA-6802948 Signaling by high-kinase activity BRAF mutants
R-HSA-6802949 Signaling by RAS mutants
R-HSA-6802952 Signaling by BRAF and RAF fusions
R-HSA-6802955 Paradoxical activation of RAF signaling by kinase inactive BRAF

SignaLink: a signaling pathway resource with multi-layered regulatory networks

More...SignaLinki		Q6VAB6

SIGNOR Signaling Network Open Resource

More...SIGNORi		Q6VAB6

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Kinase suppressor of Ras 2 (EC:2.7.11.11 Publication)
Short name:
hKSR2
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:KSR2
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHomo sapiens (Human)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000005640 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 12

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:18610 KSR2

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		610737 gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_Q6VAB6

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi718R → H: Impairs formation of heterotetramers with MAP2K1, but not the formation of heterodimers. 1 Publication1
Mutagenesisi786D → A: Loss of kinase activity. 1 Publication1
Mutagenesisi879A → L: Impairs MAP2K1 binding. 1 Publication1

Organism-specific databases

DisGeNET

More...DisGeNETi		283455

Open Targets

More...OpenTargetsi		ENSG00000171435

Orphanet; a database dedicated to information on rare diseases and orphan drugs

More...Orphaneti		521399 NON RARE IN EUROPE: Non rare obesity

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...PharmGKBi		PA134914125

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		Q6VAB6

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL3627583

Polymorphism and mutation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		KSR2

Domain mapping of disease mutations (DMDM)

More...DMDMi		148886599

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000862311 – 950Kinase suppressor of Ras 2Add BLAST950

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei272PhosphothreonineBy similarity1
Modified residuei276PhosphothreonineBy similarity1
Modified residuei474Phosphoserine; by MARK3By similarity1
Modified residuei497PhosphothreonineBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Phosphorylated on Ser-474 by MARK3.By similarity

Keywords - PTMi

Phosphoprotein

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		Q6VAB6

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		Q6VAB6

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		Q6VAB6

PeptideAtlas

More...PeptideAtlasi		Q6VAB6

PRoteomics IDEntifications database

More...PRIDEi		Q6VAB6

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		67721 [Q6VAB6-1]
67722 [Q6VAB6-2]

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q6VAB6

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		Q6VAB6

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Mainly expressed in brain and kidney.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000171435 Expressed in 86 organ(s), highest expression level in Brodmann (1909) area 23

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		Q6VAB6 baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q6VAB6 HS

Organism-specific databases

Human Protein Atlas

More...HPAi		HPA035536

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Heterodimerizes (via N-terminus) with BRAF (via N-terminus) in a MAP2K1/MEK1-dependent manner (PubMed:29433126).

Interacts with BRAF; this increases the low intrinsic protein kinase activity of KSR2 (PubMed:21441910).

Interacts with MAP2K1, forming a heterodimer that can dimerize to form a heterotetramer (PubMed:29433126, PubMed:21441910, PubMed:12975377).

Interacts with MAP3K8, MAPK, RAS and RAF (PubMed:12975377).

3 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...BioGridi		129567, 5 interactors

Database of interacting proteins

More...DIPi		DIP-59195N

Protein interaction database and analysis system

More...IntActi		Q6VAB6, 133 interactors

Molecular INTeraction database

More...MINTi		Q6VAB6

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000389715

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1950
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		Q6VAB6

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini666 – 931Protein kinasePROSITE-ProRule annotationAdd BLAST266

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi181 – 293Pro-richAdd BLAST113
Compositional biasi510 – 550Pro-richAdd BLAST41

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The protein kinase domain is predicted to be catalytically inactive and seems to have very low intrinsic kinase activity. This low kinase activity can be increased by interaction with BRAF.

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the protein kinase superfamily. TKL Ser/Thr protein kinase family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri412 – 456Phorbol-ester/DAG-typePROSITE-ProRule annotationAdd BLAST45

Keywords - Domaini

Zinc-finger

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0193 Eukaryota
ENOG410Y4UP LUCA

Ensembl GeneTree

More...GeneTreei		ENSGT00940000158519

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		HOG000113263

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q6VAB6

KEGG Orthology (KO)

More...KOi		K18529

Identification of Orthologs from Complete Genome Data

More...OMAi		HWDSWDR

Database of Orthologous Groups

More...OrthoDBi		281487at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q6VAB6

TreeFam database of animal gene trees

More...TreeFami		TF317006

Family and domain databases

Conserved Domains Database

More...CDDi		cd00029 C1, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.10.150.50, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR011009 Kinase-like_dom_sf
IPR025561 KSR_SAM-like_dom
IPR002219 PE/DAG-bd
IPR000719 Prot_kinase_dom
IPR013761 SAM/pointed_sf
IPR001245 Ser-Thr/Tyr_kinase_cat_dom
IPR008271 Ser/Thr_kinase_AS

Pfam protein domain database

More...Pfami		View protein in Pfam
PF07714 Pkinase_Tyr, 1 hit
PF13543 SAM_KSR1, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00109 C1, 1 hit
SM00220 S_TKc, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF56112 SSF56112, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50011 PROTEIN_KINASE_DOM, 1 hit
PS00108 PROTEIN_KINASE_ST, 1 hit
PS00479 ZF_DAG_PE_1, 1 hit
PS50081 ZF_DAG_PE_2, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (2+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

This entry describes 2 <p>This subsection of the ‘Sequence’ section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket

This entry has 2 described isoforms and 1 potential isoform that is computationally mapped.Show allAlign All

Isoform 1 (identifier: Q6VAB6-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MDEENMTKSE EQQPLSLQKA LQQCELVQNM IDLSISNLEG LRTKCATSND 
        60         70         80         90        100
LTQKEIRTLE SKLVKYFSRQ LSCKKKVALQ ERNAELDGFP QLRHWFRIVD 
       110        120        130        140        150
VRKEVLEEIS PGQLSLEDLL EMTDEQVCET VEKYGANREE CARLNASLSC 
       160        170        180        190        200
LRNVHMSGGN LSKQDWTIQW PTTETGKENN PVCPPEPTPW IRTHLSQSPR 
       210        220        230        240        250
VPSKCVQHYC HTSPTPGAPV YTHVDRLTVD AYPGLCPPPP LESGHRSLPP 
       260        270        280        290        300
SPRQRHAVRT PPRTPNIVTT VTPPGTPPMR KKNKLKPPGT PPPSSRKLIH 
       310        320        330        340        350
LIPGFTALHR SKSHEFQLGH RVDEAHTPKA KKKSKPLNLK IHSSVGSCEN 
       360        370        380        390        400
IPSQQRSPLL SERSLRSFFV GHAPFLPSTP PVHTEANFSA NTLSVPRWSP 
       410        420        430        440        450
QIPRRDLGNS IKHRFSTKYW MSQTCTVCGK GMLFGLKCKN CKLKCHNKCT 
       460        470        480        490        500
KEAPPCHLLI IHRGDPARLV RTESVPCDIN NPLRKPPRYS DLHISQTLPK 
       510        520        530        540        550
TNKINKDHIP VPYQPDSSSN PSSTTSSTPS SPAPPLPPSA TPPSPLHPSP 
       560        570        580        590        600
QCTRQQKNFN LPASHYYKYK QQFIFPDVVP VPETPTRAPQ VILHPVTSNP 
       610        620        630        640        650
ILEGNPLLQI EVEPTSENEE VHDEAEESED DFEEMNLSLL SARSFPRKAS 
       660        670        680        690        700
QTSIFLQEWD IPFEQLEIGE LIGKGRFGQV YHGRWHGEVA IRLIDIERDN 
       710        720        730        740        750
EDQLKAFKRE VMAYRQTRHE NVVLFMGACM SPPHLAIITS LCKGRTLYSV 
       760        770        780        790        800
VRDAKIVLDV NKTRQIAQEI VKGMGYLHAK GILHKDLKSK NVFYDNGKVV 
       810        820        830        840        850
ITDFGLFSIS GVLQAGRRED KLRIQNGWLC HLAPEIIRQL SPDTEEDKLP 
       860        870        880        890        900
FSKHSDVFAL GTIWYELHAR EWPFKTQPAE AIIWQMGTGM KPNLSQIGMG 
       910        920        930        940        950
KEISDILLFC WAFEQEERPT FTKLMDMLEK LPKRNRRLSH PGHFWKSAEL
Length:950
Mass (Da):107,632
Last modified:May 29, 2007 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iDFBC20F4E71077AD
GO
Isoform 2 (identifier: Q6VAB6-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-303: Missing.
     304-329: GFTALHRSKSHEFQLGHRVDEAHTPK → MYNKKAKMEPNASESAIPARRQRQPR
     740-742: SLC → RPV
     743-950: Missing.

Show »
Length:439
Mass (Da):49,607
Checksum:iA5D6F1DEAFDA51FC
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
E9PB13E9PB13_HUMAN
Kinase suppressor of Ras 2
KSR2
921Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Natural variant

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes natural variant(s) of the protein sequence.<p><a href='/help/variant' target='_top'>More...</a></p>Natural variantiVAR_040659676R → S in a lung adenocarcinoma sample; somatic mutation. 1 Publication1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_0122341 – 303Missing in isoform 2. 1 PublicationAdd BLAST303
Alternative sequenceiVSP_012235304 – 329GFTAL…AHTPK → MYNKKAKMEPNASESAIPAR RQRQPR in isoform 2. 1 PublicationAdd BLAST26
Alternative sequenceiVSP_012236740 – 742SLC → RPV in isoform 2. 1 Publication3
Alternative sequenceiVSP_012237743 – 950Missing in isoform 2. 1 PublicationAdd BLAST208

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AK098831 mRNA Translation: BAC05426.1
AC073864 Genomic DNA No translation available.
AC079127 Genomic DNA No translation available.
AC084291 Genomic DNA No translation available.
AC092936 Genomic DNA No translation available.
AY345972 mRNA Translation: AAQ24226.1
BC107106 mRNA Translation: AAI07107.1
BC107107 mRNA Translation: AAI07108.1
BC127603 mRNA Translation: AAI27604.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS61250.1 [Q6VAB6-1]

NCBI Reference Sequences

More...RefSeqi		NP_775869.3, NM_173598.4 [Q6VAB6-1]
XP_011536527.1, XM_011538225.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000339824; ENSP00000339952; ENSG00000171435 [Q6VAB6-1]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		283455

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:283455

UCSC genome browser

More...UCSCi		uc058tua.1 human [Q6VAB6-1]

Keywords - Coding sequence diversityi

Alternative splicing, Polymorphism

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK098831 mRNA Translation: BAC05426.1
AC073864 Genomic DNA No translation available.
AC079127 Genomic DNA No translation available.
AC084291 Genomic DNA No translation available.
AC092936 Genomic DNA No translation available.
AY345972 mRNA Translation: AAQ24226.1
BC107106 mRNA Translation: AAI07107.1
BC107107 mRNA Translation: AAI07108.1
BC127603 mRNA Translation: AAI27604.1
CCDSiCCDS61250.1 [Q6VAB6-1]
RefSeqiNP_775869.3, NM_173598.4 [Q6VAB6-1]
XP_011536527.1, XM_011538225.2

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2Y4IX-ray3.46B634-950[»]
5KKRX-ray3.51B634-950[»]
SMRiQ6VAB6
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGridi129567, 5 interactors
DIPiDIP-59195N
IntActiQ6VAB6, 133 interactors
MINTiQ6VAB6
STRINGi9606.ENSP00000389715

Chemistry databases

ChEMBLiCHEMBL3627583

PTM databases

iPTMnetiQ6VAB6
PhosphoSitePlusiQ6VAB6

Polymorphism and mutation databases

BioMutaiKSR2
DMDMi148886599

Proteomic databases

jPOSTiQ6VAB6
MassIVEiQ6VAB6
PaxDbiQ6VAB6
PeptideAtlasiQ6VAB6
PRIDEiQ6VAB6
ProteomicsDBi67721 [Q6VAB6-1]
67722 [Q6VAB6-2]

Genome annotation databases

EnsembliENST00000339824; ENSP00000339952; ENSG00000171435 [Q6VAB6-1]
GeneIDi283455
KEGGihsa:283455
UCSCiuc058tua.1 human [Q6VAB6-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		283455
DisGeNETi283455

GeneCards: human genes, protein and diseases

More...GeneCardsi		KSR2
HGNCiHGNC:18610 KSR2
HPAiHPA035536
MIMi610737 gene
neXtProtiNX_Q6VAB6
OpenTargetsiENSG00000171435
Orphaneti521399 NON RARE IN EUROPE: Non rare obesity
PharmGKBiPA134914125

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0193 Eukaryota
ENOG410Y4UP LUCA
GeneTreeiENSGT00940000158519
HOGENOMiHOG000113263
InParanoidiQ6VAB6
KOiK18529
OMAiHWDSWDR
OrthoDBi281487at2759
PhylomeDBiQ6VAB6
TreeFamiTF317006

Enzyme and pathway databases

BRENDAi2.7.11.25 2681
ReactomeiR-HSA-5674135 MAP2K and MAPK activation
R-HSA-6802946 Signaling by moderate kinase activity BRAF mutants
R-HSA-6802948 Signaling by high-kinase activity BRAF mutants
R-HSA-6802949 Signaling by RAS mutants
R-HSA-6802952 Signaling by BRAF and RAF fusions
R-HSA-6802955 Paradoxical activation of RAF signaling by kinase inactive BRAF
SignaLinkiQ6VAB6
SIGNORiQ6VAB6

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		KSR2 human

Database of phenotypes from RNA interference screens in Drosophila and Homo sapiens

More...GenomeRNAii		283455
PharosiQ6VAB6

Protein Ontology

More...PROi		PR:Q6VAB6

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000171435 Expressed in 86 organ(s), highest expression level in Brodmann (1909) area 23
ExpressionAtlasiQ6VAB6 baseline and differential
GenevisibleiQ6VAB6 HS

Family and domain databases

CDDicd00029 C1, 1 hit
Gene3Di1.10.150.50, 1 hit
InterProiView protein in InterPro
IPR011009 Kinase-like_dom_sf
IPR025561 KSR_SAM-like_dom
IPR002219 PE/DAG-bd
IPR000719 Prot_kinase_dom
IPR013761 SAM/pointed_sf
IPR001245 Ser-Thr/Tyr_kinase_cat_dom
IPR008271 Ser/Thr_kinase_AS
PfamiView protein in Pfam
PF07714 Pkinase_Tyr, 1 hit
PF13543 SAM_KSR1, 1 hit
SMARTiView protein in SMART
SM00109 C1, 1 hit
SM00220 S_TKc, 1 hit
SUPFAMiSSF56112 SSF56112, 1 hit
PROSITEiView protein in PROSITE
PS50011 PROTEIN_KINASE_DOM, 1 hit
PS00108 PROTEIN_KINASE_ST, 1 hit
PS00479 ZF_DAG_PE_1, 1 hit
PS50081 ZF_DAG_PE_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...ProtoNeti		Search...

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiKSR2_HUMAN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q6VAB6
Secondary accession number(s): A0PJT2, Q3B828, Q8N775
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 21, 2004
Last sequence update: May 29, 2007
Last modified: October 16, 2019
This is version 136 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
  3. Human and mouse protein kinases
    Human and mouse protein kinases: classification and index
  4. Human polymorphisms and disease mutations
    Index of human polymorphisms and disease mutations
  5. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  6. Human chromosome 12
    Human chromosome 12: entries, gene names and cross-references to MIM
  7. Human entries with polymorphisms or disease mutations
    List of human entries with polymorphisms or disease mutations
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