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Protein

Tyrosine-protein kinase CSK

Gene

CSK

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at transcript leveli

Functioni

Non-receptor tyrosine-protein kinase that plays an important role in the regulation of cell growth, differentiation, migration and immune response. Phosphorylates tyrosine residues located in the C-terminal tails of Src-family kinases (SFKs) including LCK, SRC, HCK, FYN, LYN or YES1. Upon tail phosphorylation, Src-family members engage in intramolecular interactions between the phosphotyrosine tail and the SH2 domain that result in an inactive conformation. To inhibit SFKs, CSK is recruited to the plasma membrane via binding to transmembrane proteins or adapter proteins located near the plasma membrane. Suppresses signaling by various surface receptors, including T-cell receptor (TCR) and B-cell receptor (BCR) by phosphorylating and maintaining inactive several positive effectors such as FYN or LCK (By similarity).By similarity

Catalytic activityi

ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate.PROSITE-ProRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei222 – 2221ATPPROSITE-ProRule annotation
Active sitei314 – 3141Proton acceptorPROSITE-ProRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi201 – 2099ATPPROSITE-ProRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Kinase, Transferase, Tyrosine-protein kinase

Keywords - Biological processi

Adaptive immunity, Immunity

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiREACT_308034. GAB1 signalosome.
REACT_311275. Integrin alphaIIb beta3 signaling.
REACT_335700. Phosphorylation of CD3 and TCR zeta chains.
REACT_346639. PD-1 signaling.

Names & Taxonomyi

Protein namesi
Recommended name:
Tyrosine-protein kinase CSK (EC:2.7.10.2)
Alternative name(s):
C-Src kinase
Gene namesi
Name:CSK
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
ProteomesiUP000009136 Componenti: Chromosome 21

Subcellular locationi

  • Cytoplasm By similarity
  • Cell membrane By similarity

  • Note: Mainly cytoplasmic, also present in lipid rafts.By similarity

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Cytoplasm, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 450449Tyrosine-protein kinase CSKPRO_0000260260Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei2 – 21N-acetylserineBy similarity
Modified residuei304 – 3041PhosphotyrosineBy similarity
Modified residuei364 – 3641Phosphoserine; by PKABy similarity
Modified residuei416 – 4161Phosphotyrosine; by autocatalysisBy similarity

Post-translational modificationi

Phosphorylated at Ser-364 by PKA, leading to increased activity. Autophosphorylated (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiQ0VBZ0.
PRIDEiQ0VBZ0.

Interactioni

Subunit structurei

Homodimer (via SH3-domain). Interacts with PTPN22. Interacts with phosphorylated SIT1, PAG1, LIME1 and TGFB1I1; these interactions serve to recruit CSK to the membrane where it can phosphorylate and inhibit Src-family kinases. Interacts with SRCIN1. Interacts with RHOH. Interacts (via SH2 domain) with SCIMP (By similarity).By similarity

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000028559.

Structurei

3D structure databases

ProteinModelPortaliQ0VBZ0.
SMRiQ0VBZ0. Positions 6-450.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini9 – 7062SH3PROSITE-ProRule annotationAdd
BLAST
Domaini82 – 17190SH2PROSITE-ProRule annotationAdd
BLAST
Domaini195 – 449255Protein kinasePROSITE-ProRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni9 – 7062Interaction with PTPN22By similarityAdd
BLAST

Domaini

The architecture of this protein is similar to that of Src-family kinases (SFKs) with one N-terminal SH3 domain, one SH2 domain, and a C-terminal kinase domain.By similarity

Sequence similaritiesi

Belongs to the protein kinase superfamily. Tyr protein kinase family. CSK subfamily.PROSITE-ProRule annotation
Contains 1 protein kinase domain.PROSITE-ProRule annotation
Contains 1 SH2 domain.PROSITE-ProRule annotation
Contains 1 SH3 domain.PROSITE-ProRule annotation

Keywords - Domaini

SH2 domain, SH3 domain

Phylogenomic databases

eggNOGiCOG0515.
GeneTreeiENSGT00760000119011.
HOGENOMiHOG000233858.
HOVERGENiHBG008761.
InParanoidiQ0VBZ0.
KOiK05728.
OMAiVWPSGTE.
OrthoDBiEOG7SV0V5.
TreeFamiTF351634.

Family and domain databases

Gene3Di3.30.505.10. 1 hit.
InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR001245. Ser-Thr/Tyr_kinase_cat_dom.
IPR000980. SH2.
IPR001452. SH3_domain.
IPR008266. Tyr_kinase_AS.
IPR020635. Tyr_kinase_cat_dom.
[Graphical view]
PfamiPF07714. Pkinase_Tyr. 1 hit.
PF00017. SH2. 1 hit.
PF00018. SH3_1. 1 hit.
[Graphical view]
PRINTSiPR00401. SH2DOMAIN.
PR00109. TYRKINASE.
SMARTiSM00252. SH2. 1 hit.
SM00326. SH3. 1 hit.
SM00219. TyrKc. 1 hit.
[Graphical view]
SUPFAMiSSF50044. SSF50044. 1 hit.
SSF55550. SSF55550. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00109. PROTEIN_KINASE_TYR. 1 hit.
PS50001. SH2. 1 hit.
PS50002. SH3. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q0VBZ0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSAIQAAWPS GTECIAKYNF HGTAEQDLPF CKGDVLTIVA VTKDPNWYKA
60 70 80 90 100
KNKVGREGII PANYVQKREG VKAGTKLSLM PWFHGKITRE QAERLLCPPE
110 120 130 140 150
TGLFLVREST NYPGDYTLCV SCDGKVEHYR IMYHASKLSI DEEVYFENLM
160 170 180 190 200
QLVEHYTSDA DGLCTRLIKP KVMEGTVAAQ DEFFRSGWAL NMKDLKLLQT
210 220 230 240 250
IGKGEFGDVM LGDYRGNKVA VKCIKNDATA QAFLAEASVM TQLRHSNLVQ
260 270 280 290 300
LLGVIVEEKS GLYIVTEYMA KGSLVDYLRS RGRSVLGGDC LLKFSLDVCE
310 320 330 340 350
AMEYLEGNNF VHRDLAARNV LVSEDNVAKV SDFGLTKEAS STQDTGKLPV
360 370 380 390 400
KWTAPEALRE KKFSTKSDVW SFGILLWEIY SFGRVPYPRI PLKDVVPRVE
410 420 430 440 450
KGYKMDAPDG CPPAVYEVMK NCWHLDAATR PSFLQLREQL ERIKTHELHL
Length:450
Mass (Da):50,633
Last modified:September 5, 2006 - v1
Checksum:iB42BD31C645783D0
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC120437 mRNA. Translation: AAI20438.1.
RefSeqiNP_001068865.1. NM_001075397.1.
UniGeneiBt.20371.

Genome annotation databases

EnsembliENSBTAT00000028559; ENSBTAP00000028559; ENSBTAG00000021424.
GeneIDi509246.
KEGGibta:509246.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC120437 mRNA. Translation: AAI20438.1.
RefSeqiNP_001068865.1. NM_001075397.1.
UniGeneiBt.20371.

3D structure databases

ProteinModelPortaliQ0VBZ0.
SMRiQ0VBZ0. Positions 6-450.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000028559.

Proteomic databases

PaxDbiQ0VBZ0.
PRIDEiQ0VBZ0.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000028559; ENSBTAP00000028559; ENSBTAG00000021424.
GeneIDi509246.
KEGGibta:509246.

Organism-specific databases

CTDi1445.

Phylogenomic databases

eggNOGiCOG0515.
GeneTreeiENSGT00760000119011.
HOGENOMiHOG000233858.
HOVERGENiHBG008761.
InParanoidiQ0VBZ0.
KOiK05728.
OMAiVWPSGTE.
OrthoDBiEOG7SV0V5.
TreeFamiTF351634.

Enzyme and pathway databases

ReactomeiREACT_308034. GAB1 signalosome.
REACT_311275. Integrin alphaIIb beta3 signaling.
REACT_335700. Phosphorylation of CD3 and TCR zeta chains.
REACT_346639. PD-1 signaling.

Miscellaneous databases

NextBioi20868890.

Family and domain databases

Gene3Di3.30.505.10. 1 hit.
InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR001245. Ser-Thr/Tyr_kinase_cat_dom.
IPR000980. SH2.
IPR001452. SH3_domain.
IPR008266. Tyr_kinase_AS.
IPR020635. Tyr_kinase_cat_dom.
[Graphical view]
PfamiPF07714. Pkinase_Tyr. 1 hit.
PF00017. SH2. 1 hit.
PF00018. SH3_1. 1 hit.
[Graphical view]
PRINTSiPR00401. SH2DOMAIN.
PR00109. TYRKINASE.
SMARTiSM00252. SH2. 1 hit.
SM00326. SH3. 1 hit.
SM00219. TyrKc. 1 hit.
[Graphical view]
SUPFAMiSSF50044. SSF50044. 1 hit.
SSF55550. SSF55550. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00109. PROTEIN_KINASE_TYR. 1 hit.
PS50001. SH2. 1 hit.
PS50002. SH3. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. NIH - Mammalian Gene Collection (MGC) project
    Submitted (AUG-2006) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Strain: Hereford.
    Tissue: Basal ganglia.

Entry informationi

Entry nameiCSK_BOVIN
AccessioniPrimary (citable) accession number: Q0VBZ0
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: September 5, 2006
Last modified: June 24, 2015
This is version 81 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.