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Entry version 91 (12 Aug 2020)
Sequence version 1 (13 Sep 2004)
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Protein

Sphingosine kinase B

Gene

sgkB

Organism
Dictyostelium discoideum (Slime mold)
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 transcript 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

Catalyzes the phosphorylation of sphingosine to form sphingosine-1-phosphate (S1P), which probably acts intracellularly as a second messenger perhaps by promoting cell proliferation.

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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%5Fsection">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

Inhibited by N,N,-dimethylsphingosine.Curated

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei288ATPPROSITE-ProRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei315Proton donor/acceptorBy similarity1
Binding sitei320ATPPROSITE-ProRule annotation1
Binding sitei461SubstrateBy similarity1
Binding sitei468ATPPROSITE-ProRule annotation1
Binding sitei474ATPPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 bindingi257 – 259ATPPROSITE-ProRule annotation3
Nucleotide bindingi345 – 347ATPPROSITE-ProRule annotation3
Nucleotide bindingi734 – 736ATPPROSITE-ProRule annotation3

<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

GO - Biological processi

<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, Transferase
Biological processLipid metabolism, Sphingolipid metabolism
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-DDI-1660661, Sphingolipid de novo biosynthesis

<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%5Fand%5Ftaxonomy%5Fsection">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:
Sphingosine kinase B (EC:2.7.1.91By similarity)
Short name:
SK B
Short name:
SPK B
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:sgkB
Synonyms:SK, SPHK
ORF Names:DDB_G0284545
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiDictyostelium discoideum (Slime mold)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri44689 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaAmoebozoaEvoseaEumycetozoaDictyosteliaDictyostelialesDictyosteliaceaeDictyostelium
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000002195 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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> Componentsi: Chromosome 4, Unassembled WGS sequence

Organism-specific databases

Dictyostelium discoideum online informatics resource

More...
dictyBasei
DDB_G0284545, sgkB

<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

GO - Cellular componenti

<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 describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Cells grow more slowly on solid media and are more sensitive than wild-type to the antitumor agents cisplatin and carboplatin; both effects are exacerbated in sgkA and sgkB double knockout. Exogenous S1P reverses the sensitivity to cisplatin.1 Publication

<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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003282511 – 760Sphingosine kinase BAdd BLAST760

Proteomic databases

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

More...
PaxDbi
Q6B516

PRoteomics IDEntifications database

More...
PRIDEi
Q6B516

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
44689.DDB0220131

<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%5Fand%5Fdomains%5Fsection">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>Domaini247 – 383DAGKcPROSITE-ProRule annotationAdd BLAST137

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>Regioni313 – 316Substrate bindingBy similarity4

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 biasi46 – 53Poly-Asn8
Compositional biasi91 – 103Poly-AsnAdd BLAST13
Compositional biasi178 – 188Poly-ThrAdd BLAST11
Compositional biasi394 – 402Poly-Thr9
Compositional biasi415 – 442Poly-AsnAdd BLAST28
Compositional biasi556 – 562Poly-Asn7
Compositional biasi563 – 568Poly-Thr6
Compositional biasi582 – 587Poly-Thr6

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1116, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_438347_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q6B516

KEGG Orthology (KO)

More...
KOi
K04718

Identification of Orthologs from Complete Genome Data

More...
OMAi
MEPEHAK

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q6B516

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.50.10330, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR017438, ATP-NAD_kinase_N
IPR001206, Diacylglycerol_kinase_cat_dom
IPR016064, NAD/diacylglycerol_kinase_sf

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00781, DAGK_cat, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00046, DAGKc, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF111331, SSF111331, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50146, DAGK, 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%5Flength">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>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q6B516-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MENNNNEPAE TVQEKGPKLK NDIDLNDQFK DEKEKKEEIS SSSIENKNNN
60 70 80 90 100
NNNTSTNNVI PNESNNNISN NNVISNENNN TNNNTDNNTD NNNNNNNNNN
110 120 130 140 150
NNNEPVTSFT VNNKSLIEKE PTLFEFNQEQ QIKYKNKSIN SLIIKRSGIV
160 170 180 190 200
IKISQKKSTI IYQDSIIACS ELPDNFDTAT TTTTTTTTLP IKVTLFTCVL
210 220 230 240 250
KKKQLTIDKE QRKRKSYTFQ FKSNQDSLNF YSNIQSTFLN SLPRGNPKNR
260 270 280 290 300
KIRILINPKS GKKESHNIFK EVEQLFKDSG IKMKLTVTME PEHAKKIGFK
310 320 330 340 350
SNIYKYDTVV FISGDGLLHE FINGLLSRED YEDAKKIPLA LIPAGTGNGL
360 370 380 390 400
ANSIGLQDPM SAALAILRGF TKPLDVCIVQ QPTVTTIPVV DNNTVTTTTT
410 420 430 440 450
TTSPTSASPT ITSANNNNNN NNNNNNNNNN NNNNNNNNNN SNITKWCSIL
460 470 480 490 500
SLTWGLVSDV DIESEKYRSL GDLRLIIGAA VRILNLRIYR GKVYFLPAIP
510 520 530 540 550
LDKSQMQSIP KCSFDCNICD SSNSVKVIED LVCNDNDNNN KNKNEEQNEI
560 570 580 590 600
NSTTSNNNNN NNTTTTSTSS STSTSTSTSS LTATTTTAKS TNSLSSSPRS
610 620 630 640 650
DINMSSNSIS KSLDIGTIPS CKVTHNSNLL NESSDSLLSK GWKCIEGEFI
660 670 680 690 700
GVVASTVSHL ASDFISSPNA HLSDGLIDLI FINNRSKLSK ASLLSILTDS
710 720 730 740 750
ATGDHLKSDL IEHHKVKALI LEPSIQKHGI VAIDGERIPY AKTSMENIRG
760
CLNLICRSYH
Length:760
Mass (Da):83,966
Last modified:September 13, 2004 - v1
<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:iD505C2167ACB266C
GO

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
AY679519 mRNA Translation: AAT80892.1
AAFI02000066 Genomic DNA Translation: EAL65199.1

NCBI Reference Sequences

More...
RefSeqi
XP_638540.1, XM_633448.1

Genome annotation databases

Ensembl protists genome annotation project

More...
EnsemblProtistsi
EAL65199; EAL65199; DDB_G0284545

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
8624633

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ddi:DDB_G0284545

<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
AY679519 mRNA Translation: AAT80892.1
AAFI02000066 Genomic DNA Translation: EAL65199.1
RefSeqiXP_638540.1, XM_633448.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

STRINGi44689.DDB0220131

Proteomic databases

PaxDbiQ6B516
PRIDEiQ6B516

Genome annotation databases

EnsemblProtistsiEAL65199; EAL65199; DDB_G0284545
GeneIDi8624633
KEGGiddi:DDB_G0284545

Organism-specific databases

dictyBaseiDDB_G0284545, sgkB

Phylogenomic databases

eggNOGiKOG1116, Eukaryota
HOGENOMiCLU_438347_0_0_1
InParanoidiQ6B516
KOiK04718
OMAiMEPEHAK
PhylomeDBiQ6B516

Enzyme and pathway databases

ReactomeiR-DDI-1660661, Sphingolipid de novo biosynthesis

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q6B516

Family and domain databases

Gene3Di3.40.50.10330, 1 hit
InterProiView protein in InterPro
IPR017438, ATP-NAD_kinase_N
IPR001206, Diacylglycerol_kinase_cat_dom
IPR016064, NAD/diacylglycerol_kinase_sf
PfamiView protein in Pfam
PF00781, DAGK_cat, 1 hit
SMARTiView protein in SMART
SM00046, DAGKc, 1 hit
SUPFAMiSSF111331, SSF111331, 1 hit
PROSITEiView protein in PROSITE
PS50146, DAGK, 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 nameiSPHKB_DICDI
<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: Q6B516
Secondary accession number(s): Q54PJ2
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 8, 2008
Last sequence update: September 13, 2004
Last modified: August 12, 2020
This is version 91 of the entry and version 1 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)

<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

Reference proteome

Documents

  1. Dictyostelium discoideum
    Dictyostelium discoideum: entries, gene names and cross-references to dictyBase
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