Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
The new UniProt website is here! Take me to UniProt BETA

UniProtKB - Q99653 (CHP1_HUMAN)

Entry version 203 (29 Sep 2021)
Sequence version 3 (23 Jan 2007)
Previous versions | rss
Add a publicationFeedback
Protein

Calcineurin B homologous protein 1

Gene

CHP1

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

Calcium-binding protein involved in different processes such as regulation of vesicular trafficking, plasma membrane Na+/H+ exchanger and gene transcription. Involved in the constitutive exocytic membrane traffic. Mediates the association between microtubules and membrane-bound organelles of the endoplasmic reticulum and Golgi apparatus and is also required for the targeting and fusion of transcytotic vesicles (TCV) with the plasma membrane. Functions as an integral cofactor in cell pH regulation by controlling plasma membrane-type Na+/H+ exchange activity. Affects the pH sensitivity of SLC9A1/NHE1 by increasing its sensitivity at acidic pH. Required for the stabilization and localization of SLC9A1/NHE1 at the plasma membrane. Inhibits serum- and GTPase-stimulated Na+/H+ exchange. Plays a role as an inhibitor of ribosomal RNA transcription by repressing the nucleolar UBF1 transcriptional activity. May sequester UBF1 in the nucleoplasm and limit its translocation to the nucleolus. Associates to the ribosomal gene promoter. Acts as a negative regulator of the calcineurin/NFAT signaling pathway. Inhibits NFAT nuclear translocation and transcriptional activity by suppressing the calcium-dependent calcineurin phosphatase activity. Also negatively regulates the kinase activity of the apoptosis-induced kinase STK17B. Inhibits both STK17B auto- and substrate-phosphorylations in a calcium-dependent manner.

4 Publications

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) of the calcium-binding region(s) within the protein. One common calcium-binding motif is the EF-hand, but other calcium-binding motifs also exist.<p><a href='/help/ca_bind' target='_top'>More...</a></p>Calcium bindingi123 – 1341Add BLAST12
Calcium bindingi164 – 1752Add BLAST12

<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 functionProtein kinase inhibitor
Biological processProtein transport, Transport
LigandCalcium, Metal-binding

Enzyme and pathway databases

Pathway Commons web resource for biological pathway data

More...PathwayCommonsi		Q99653

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-HSA-2160916, Hyaluronan uptake and degradation

Protein family/group databases

Transport Classification Database

More...TCDBi		8.A.82.1.6, the calmodulin calcium binding protein (calmodulin) family

<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:
Calcineurin B homologous protein 1
Alternative name(s):
Calcineurin B-like protein
Calcium-binding protein CHP
Calcium-binding protein p22
EF-hand calcium-binding domain-containing protein p22
<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:CHP1
Synonyms:CHP
<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 15

Organism-specific databases

Human Gene Nomenclature Database

More...HGNCi		HGNC:17433, CHP1

Online Mendelian Inheritance in Man (OMIM)

More...MIMi		606988, gene

neXtProt; the human protein knowledge platform

More...neXtProti		NX_Q99653

Eukaryotic Pathogen, Vector and Host Database Resources

More...VEuPathDBi		HostDB:ENSG00000187446

<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

Keywords - Cellular componenti

Cell membrane, Cytoplasm, Cytoskeleton, Endoplasmic reticulum, Membrane, Nucleus

<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

<p>This subsection of the 'Pathology and Biotech' section provides information on the disease(s) associated with genetic variations in a given protein. The information is extracted from the scientific literature and diseases that are also described in the <a href="http://www.ncbi.nlm.nih.gov/sites/entrez?db=omim">OMIM</a> database are represented with a <a href="http://www.uniprot.org/diseases">controlled vocabulary</a> in the following way:<p><a href='/help/involvement_in_disease' target='_top'>More...</a></p>Involvement in diseasei

Spastic ataxia 9, autosomal recessive (SPAX9)1 Publication
The disease is caused by variants affecting the gene represented in this entry.
Disease descriptionAn autosomal recessive disorder characterized by onset of spastic ataxia in the first years of life. Clinical features include motor neuropathy, cerebellar atrophy, spastic paraparesis, intellectual disability, slow ocular saccades, axial hypotonia, distal muscle weakness and atrophy, and pyramidal symptoms, including hyperreflexia and extensor plantar responses.
Related information in OMIM
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_08303319Missing in SPAX9; decreased protein solubility; decreased protein location at the plasma membrane. 1 PublicationCorresponds to variant dbSNP:rs1310569366Ensembl.1

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>Mutagenesisi50D → A: Does not reduce calcium-binding, colocalization and interaction with SLC9A1. 1 Publication1
Mutagenesisi134E → A: Reduces calcium-binding and SLC9A1-dependent Na(+)/H(+) exchange activity. Does not reduce colocalization and interaction with SLC9A1. Reduces colocalization and interaction with SLC9A1; when associated with A-175. 1 Publication1
Mutagenesisi143V → A: Inhibits translocation to the cytoplasm; when associated with A-145; A-147; A-183 and A-185. 1 Publication1
Mutagenesisi145V → A: Inhibits translocation to the cytoplasm; when associated with A-143; A-147; A-183 and A-185. 1 Publication1
Mutagenesisi147I → A: Inhibits translocation to the cytoplasm; when associated with A-143; A-145; A-183 and A-185. 1 Publication1
Mutagenesisi175E → A: Reduces calcium-binding and SLC9A1-dependent Na(+)/H(+) exchange activity. Does not reduce colocalization and interaction with SLC9A1. Reduces colocalization and interaction with SLC9A1; when associated with A-134. 1 Publication1
Mutagenesisi183V → A: Inhibits translocation to the cytoplasm; when associated with A-143; A-145; A-147 and A-185. 1 Publication1
Mutagenesisi185V → A: Inhibits translocation to the cytoplasm; when associated with A-143; A-145; A-147 and A-183. 1 Publication1

Keywords - Diseasei

Disease variant, Neurodegeneration

Organism-specific databases

DisGeNET

More...DisGeNETi		11261

MalaCards human disease database

More...MalaCardsi		CHP1
MIMi618438, phenotype

Open Targets

More...OpenTargetsi		ENSG00000187446

Miscellaneous databases

Pharos NIH Druggable Genome Knowledgebase

More...Pharosi		Q99653, Tbio

Chemistry databases

Drug and drug target database

More...DrugBanki		DB11093, Calcium citrate
DB11348, Calcium Phosphate
DB14481, Calcium phosphate dihydrate

Genetic variation databases

BioMuta curated single-nucleotide variation and disease association database

More...BioMutai		CHP1

Domain mapping of disease mutations (DMDM)

More...DMDMi		3023439

<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 <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved1 Publication
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000738432 – 195Calcineurin B homologous protein 1Add BLAST194

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position(s) and the type of covalently attached lipid group(s).<p><a href='/help/lipid' target='_top'>More...</a></p>Lipidationi2N-myristoyl glycine1 Publication1

<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; decreased phosphorylation is associated with an increase in SLC9A1/NHE1 Na+/H+ exchange activity. Phosphorylation occurs in serum-dependent manner. The phosphorylation state may regulate the binding to SLC9A1/NHE1.1 Publication
Both N-myristoylation and calcium-mediated conformational changes are essential for its function in exocytic traffic (By similarity). N-myristoylation is required for its association with microtubules and interaction with GAPDH, but not for the constitutive association to membranes.By similarity

Keywords - PTMi

Lipoprotein, Myristate, Phosphoprotein

Proteomic databases

Encyclopedia of Proteome Dynamics

More...EPDi		Q99653

jPOST - Japan Proteome Standard Repository/Database

More...jPOSTi		Q99653

MassIVE - Mass Spectrometry Interactive Virtual Environment

More...MassIVEi		Q99653

MaxQB - The MaxQuant DataBase

More...MaxQBi		Q99653

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

More...PaxDbi		Q99653

PeptideAtlas

More...PeptideAtlasi		Q99653

PRoteomics IDEntifications database

More...PRIDEi		Q99653

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		78381

Consortium for Top Down Proteomics

More...TopDownProteomicsi		Q99653

2D gel databases

USC-OGP 2-DE database

More...OGPi		Q99653

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q99653

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

More...PhosphoSitePlusi		Q99653

SwissPalm database of S-palmitoylation events

More...SwissPalmi		Q99653

<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

Ubiquitously expressed. Has been found in fetal eye, lung, liver, muscle, heart, kidney, thymus and spleen.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSG00000187446, Expressed in colon and 244 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...ExpressionAtlasi		Q99653, baseline and differential

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q99653, HS

Organism-specific databases

Human Protein Atlas

More...HPAi		ENSG00000187446, Low tissue specificity

<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

Monomer.

Interacts with STK17B; the interaction occurs in a calcium-independent manner and induces the translocation of CHP1 from the Golgi to the nucleus.

Interacts with GAPDH; the interaction is direct, occurs in a N-myristoylation-dependent manner and facilitates the ability of CHP1 to bind microtubules.

Interacts with KIF1B (via the C-terminal end of the kinesin-motor domain); the interaction occurs in a calcium-dependent manner. Associates (via C-terminal domain) with microtubules; the association occurs with polymerized microtubules during the cell cycle in a myristoylation- and calcium-independent manner and is enhanced by GAPDH (By similarity).

Interacts with PPP3CA.

Interacts with SLC9A1/NHE1 (via the juxtamembrane region of the cytoplasmic C-terminal domain); the interaction occurs at the plasma membrane in a calcium-dependent manner and at a domain that is critical for growth factor stimulation of the exchanger.

By similarity5 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section">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="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		116421, 55 interactors

Protein interaction database and analysis system

More...IntActi		Q99653, 34 interactors

STRING: functional protein association networks

More...STRINGi		9606.ENSP00000335632

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		Q99653, protein

<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

1195
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		Q99653

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		Q99653

<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>Domaini26 – 61EF-hand 1PROSITE-ProRule annotationAdd BLAST36
Domaini66 – 101EF-hand 2PROSITE-ProRule annotationAdd BLAST36
Domaini110 – 145EF-hand 3PROSITE-ProRule annotationAdd BLAST36
Domaini151 – 186EF-hand 4PROSITE-ProRule annotationAdd BLAST36

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni143 – 185Necessary for nuclear export signalAdd BLAST43

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi2 – 6Necessary for association with microtubule and interaction with GAPDHBy similarity5
Motifi138 – 147Nuclear export signal 1By similarity10
Motifi176 – 185Nuclear export signal 2By similarity10

<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 calcineurin regulatory subunit family. CHP subfamily.Curated

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG0034, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00940000154629

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_061288_10_5_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q99653

Identification of Orthologs from Complete Genome Data

More...OMAi		HSFFADS

Database of Orthologous Groups

More...OrthoDBi		1271942at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q99653

TreeFam database of animal gene trees

More...TreeFami		TF354284

Family and domain databases

Conserved Domains Database

More...CDDi		cd00051, EFh, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR011992, EF-hand-dom_pair
IPR002048, EF_hand_dom

Pfam protein domain database

More...Pfami		View protein in Pfam
PF13499, EF-hand_7, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00054, EFh, 2 hits

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF47473, SSF47473, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50222, EF_HAND_2, 3 hits

<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>Sequence (1+)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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry has 1 described isoform and 5 potential isoforms that are computationally mapped.Show allAlign All

Q99653-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGSRASTLLR DEELEEIKKE TGFSHSQITR LYSRFTSLDK GENGTLSRED 
        60         70         80         90        100
FQRIPELAIN PLGDRIINAF FPEGEDQVNF RGFMRTLAHF RPIEDNEKSK 
       110        120        130        140        150
DVNGPEPLNS RSNKLHFAFR LYDLDKDEKI SRDELLQVLR MMVGVNISDE 
       160        170        180        190 
QLGSIADRTI QEADQDGDSA ISFTEFVKVL EKVDVEQKMS IRFLH
Length:195
Mass (Da):22,456
Last modified:January 23, 2007 - v3
<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:i8E82EEF0CA5E832F
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 are 5 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
H0YKE7H0YKE7_HUMAN
Calcineurin B homologous protein 1
CHP1
123Annotation score:

Annotation score:1 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>
F5GX29F5GX29_HUMAN
Calcineurin B homologous protein 1
CHP1
128Annotation score:

Annotation score:1 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>
H0YNG9H0YNG9_HUMAN
Calcineurin B homologous protein 1
CHP1
154Annotation score:

Annotation score:1 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>
H0YLY7H0YLY7_HUMAN
Calcineurin B homologous protein 1
CHP1
91Annotation score:

Annotation score:1 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>
H0YLX1H0YLX1_HUMAN
Calcineurin B homologous protein 1
CHP1
53Annotation score:

Annotation score:1 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
Natural variantiVAR_08303319Missing in SPAX9; decreased protein solubility; decreased protein location at the plasma membrane. 1 PublicationCorresponds to variant dbSNP:rs1310569366Ensembl.1

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
U61538 mRNA Translation: AAB37770.1
CR536539 mRNA Translation: CAG38776.1
CR542085 mRNA Translation: CAG46882.1
AK312582 mRNA Translation: BAG35476.1
CH471125 Genomic DNA Translation: EAW92474.1
BC031293 mRNA Translation: AAH31293.1
BC051815 mRNA No translation available.

The Consensus CDS (CCDS) project

More...CCDSi		CCDS10073.1

NCBI Reference Sequences

More...RefSeqi		NP_009167.1, NM_007236.4

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENST00000334660; ENSP00000335632; ENSG00000187446

Database of genes from NCBI RefSeq genomes

More...GeneIDi		11261

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		hsa:11261

UCSC genome browser

More...UCSCi		uc001znl.4, human

<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
U61538 mRNA Translation: AAB37770.1
CR536539 mRNA Translation: CAG38776.1
CR542085 mRNA Translation: CAG46882.1
AK312582 mRNA Translation: BAG35476.1
CH471125 Genomic DNA Translation: EAW92474.1
BC031293 mRNA Translation: AAH31293.1
BC051815 mRNA No translation available.
CCDSiCCDS10073.1
RefSeqiNP_009167.1, NM_007236.4

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
2E30NMR-A1-195[»]
7DSVelectron microscopy3.40C/D11-195[»]
7DSXelectron microscopy3.50C/D11-195[»]
SMRiQ99653
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

BioGRIDi116421, 55 interactors
IntActiQ99653, 34 interactors
STRINGi9606.ENSP00000335632

Chemistry databases

DrugBankiDB11093, Calcium citrate
DB11348, Calcium Phosphate
DB14481, Calcium phosphate dihydrate

Protein family/group databases

TCDBi8.A.82.1.6, the calmodulin calcium binding protein (calmodulin) family

PTM databases

iPTMnetiQ99653
PhosphoSitePlusiQ99653
SwissPalmiQ99653

Genetic variation databases

BioMutaiCHP1
DMDMi3023439

2D gel databases

OGPiQ99653

Proteomic databases

EPDiQ99653
jPOSTiQ99653
MassIVEiQ99653
MaxQBiQ99653
PaxDbiQ99653
PeptideAtlasiQ99653
PRIDEiQ99653
ProteomicsDBi78381
TopDownProteomicsiQ99653

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		1886, 227 antibodies

The DNASU plasmid repository

More...DNASUi		11261

Genome annotation databases

EnsembliENST00000334660; ENSP00000335632; ENSG00000187446
GeneIDi11261
KEGGihsa:11261
UCSCiuc001znl.4, human

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		11261
DisGeNETi11261

GeneCards: human genes, protein and diseases

More...GeneCardsi		CHP1
HGNCiHGNC:17433, CHP1
HPAiENSG00000187446, Low tissue specificity
MalaCardsiCHP1
MIMi606988, gene
618438, phenotype
neXtProtiNX_Q99653
OpenTargetsiENSG00000187446
VEuPathDBiHostDB:ENSG00000187446

GenAtlas: human gene database

More...GenAtlasi		Search...

Phylogenomic databases

eggNOGiKOG0034, Eukaryota
GeneTreeiENSGT00940000154629
HOGENOMiCLU_061288_10_5_1
InParanoidiQ99653
OMAiHSFFADS
OrthoDBi1271942at2759
PhylomeDBiQ99653
TreeFamiTF354284

Enzyme and pathway databases

PathwayCommonsiQ99653
ReactomeiR-HSA-2160916, Hyaluronan uptake and degradation

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		11261, 57 hits in 1016 CRISPR screens

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

More...ChiTaRSi		CHP1, human
EvolutionaryTraceiQ99653

The Gene Wiki collection of pages on human genes and proteins

More...GeneWikii		CHP_(gene)

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

More...GenomeRNAii		11261
PharosiQ99653, Tbio

Protein Ontology

More...PROi		PR:Q99653
RNActiQ99653, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSG00000187446, Expressed in colon and 244 other tissues
ExpressionAtlasiQ99653, baseline and differential
GenevisibleiQ99653, HS

Family and domain databases

CDDicd00051, EFh, 1 hit
InterProiView protein in InterPro
IPR011992, EF-hand-dom_pair
IPR002048, EF_hand_dom
PfamiView protein in Pfam
PF13499, EF-hand_7, 1 hit
SMARTiView protein in SMART
SM00054, EFh, 2 hits
SUPFAMiSSF47473, SSF47473, 1 hit
PROSITEiView protein in PROSITE
PS50222, EF_HAND_2, 3 hits

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 nameiCHP1_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: Q99653
Secondary accession number(s): B2R6H9, Q6FHZ9
<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: July 15, 1998
Last sequence update: January 23, 2007
Last modified: September 29, 2021
This is version 203 of the entry and version 3 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, Reference proteome

Documents

  1. Human chromosome 15
    Human chromosome 15: entries, gene names and cross-references to MIM
  2. Human entries with genetic variants
    List of human entries with genetic variants
  3. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  4. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  5. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again