Descriptions

The Src-family kinases include Src, Hck, Fyn, Lyn, Lck, Yes, Fgr, Blk and Frk. They are involved in diverse cellular functions such as immune responses and cell survival and proliferation. The SH2 domain binds to the C-terminal regulatory tail, facilitating the SH3-SH2-kinase linker interaction. SH3 domain engages the SH2-kinase linker, which adopts a polyproline type II (PPII) helical conformation. These interactions result in the inhibition of the kinase activity of HCK.

Autoinhibitory domains (AIDs)

Target domain

275-528 (Protein kinase domain)

Relief mechanism

Partner binding, Ligand binding

Assay

Target domain

275-528 (Protein kinase domain)

Relief mechanism

PTM

Assay

Target domain

275-528 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Target domain

275-528 (Protein kinase domain)

Relief mechanism

PTM

Assay

Accessory elements

411-435 (Activation loop from InterPro)

Target domain

275-524 (Tyrosine-protein kinase, catalytic domain)

Relief mechanism

Assay

References

Autoinhibited structure

Activated structure

3 structures for Q04736

Entry ID Method Resolution Chain Position Source
2YT6 NMR - A 71-167 PDB
5MTJ X-ray 195 A A 147-260 PDB
AF-Q04736-F1 Predicted AlphaFoldDB

20 variants for Q04736

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3388749839 11 S>G No EVA
rs3388738659 15 K>N No EVA
rs3388750798 15 K>T No EVA
rs3388737987 34 V>M No EVA
rs3388759511 39 V>L No EVA
rs3388745601 49 S>L No EVA
rs3388759507 78 V>M No EVA
rs3395506513 120 N>K No EVA
rs1134879951 166 A>V No EVA
rs3388755663 223 T>K No EVA
rs3388750805 311 M>K No EVA
rs3388753189 338 S>P No EVA
rs3388737944 341 P>S No EVA
rs3388738000 431 K>N No EVA
rs3388753264 440 E>K No EVA
rs3388759522 448 T>S No EVA
rs3388753637 460 Q>H No EVA
rs1133260369 462 E>K No EVA
rs1133623089 464 V>I No EVA
rs1132594154 465 T>I No EVA

No associated diseases with Q04736

8 regional properties for Q04736

Type Name Position InterPro Accession
domain Protein kinase domain 275 - 528 IPR000719
domain SH2 domain 154 - 253 IPR000980
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 276 - 524 IPR001245
domain SH3 domain 89 - 150 IPR001452
active_site Tyrosine-protein kinase, active site 390 - 402 IPR008266
binding_site Protein kinase, ATP binding site 281 - 303 IPR017441
domain Tyrosine-protein kinase, catalytic domain 275 - 524 IPR020635
domain Tyrosine-protein kinase Yes, SH3 domain 92 - 149 IPR035751

Functions

Description
EC Number 2.7.10.2 Protein-tyrosine kinases
Subcellular Localization
  • Cell membrane
  • Cytoplasm, cytoskeleton, microtubule organizing center, centrosome
  • Cytoplasm, cytosol
  • Newly synthesized protein initially accumulates in the Golgi region and traffics to the plasma membrane through the exocytic pathway
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

8 GO annotations of cellular component

Name Definition
actin filament A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane.
centrosome A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
extrinsic component of cytoplasmic side of plasma membrane The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
glutamatergic synapse A synapse that uses glutamate as a neurotransmitter.
Golgi apparatus A membrane-bound cytoplasmic organelle of the endomembrane system that further processes the core oligosaccharides (e.g. N-glycans) added to proteins in the endoplasmic reticulum and packages them into membrane-bound vesicles. The Golgi apparatus operates at the intersection of the secretory, lysosomal, and endocytic pathways.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
postsynaptic specialization, intracellular component A network of proteins adjacent to the postsynaptic membrane. Its major components include the proteins that spatially and functionally organize neurotransmitter receptors in the adjacent membrane, such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.

8 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
enzyme binding Binding to an enzyme, a protein with catalytic activity.
epidermal growth factor receptor binding Binding to an epidermal growth factor receptor.
non-membrane spanning protein tyrosine kinase activity Catalysis of the reaction
phosphotyrosine residue binding Binding to a phosphorylated tyrosine residue within a protein.
protein tyrosine kinase activity Catalysis of the reaction
signaling receptor binding Binding to one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
transmembrane transporter binding Binding to a transmembrane transporter, a protein or protein complex that enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.

10 GO annotations of biological process

Name Definition
cell differentiation The cellular developmental process in which a relatively unspecialized cell, e.g. embryonic or regenerative cell, acquires specialized structural and/or functional features that characterize a specific cell. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
cellular response to platelet-derived growth factor stimulus Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a platelet-derived growth factor stimulus.
cellular response to retinoic acid Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a retinoic acid stimulus.
cellular response to transforming growth factor beta stimulus Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a transforming growth factor beta stimulus.
innate immune response Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of peptidyl-tyrosine phosphorylation Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine.
positive regulation of transcription by RNA polymerase II Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
regulation of glucose transmembrane transport Any process that modulates the frequency, rate or extent of glucose transport across a membrane. Glucose transport is the directed movement of the hexose monosaccharide glucose into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
transmembrane receptor protein tyrosine kinase signaling pathway The series of molecular signals initiated by an extracellular ligand binding to a receptor on the surface of the target cell where the receptor possesses tyrosine kinase activity, and ending with the regulation of a downstream cellular process, e.g. transcription.

90 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
A0JNB0 FYN Tyrosine-protein kinase Fyn Bos taurus (Bovine) SS
Q0VBZ0 CSK Tyrosine-protein kinase CSK Bos taurus (Bovine) SS
Q3ZC95 BTK Tyrosine-protein kinase Bos taurus (Bovine) EV SS
P42683 LCK Proto-oncogene tyrosine-protein kinase LCK Gallus gallus (Chicken) SS
P41239 CSK Tyrosine-protein kinase CSK Gallus gallus (Chicken) SS
P00523 SRC Proto-oncogene tyrosine-protein kinase Src Gallus gallus (Chicken) EV
Q02977 YRK Proto-oncogene tyrosine-protein kinase Yrk Gallus gallus (Chicken) SS
Q8JH64 BTK Tyrosine-protein kinase BTK Gallus gallus (Chicken) SS
Q05876 FYN Tyrosine-protein kinase Fyn Gallus gallus (Chicken) SS
Q75R65 JAK2 Tyrosine-protein kinase JAK2 Gallus gallus (Chicken) SS
P09324 YES1 Tyrosine-protein kinase Yes Gallus gallus (Chicken) SS
Q24592 hop Tyrosine-protein kinase hopscotch Drosophila melanogaster (Fruit fly) PR
P08630 Btk Tyrosine-protein kinase Btk Drosophila melanogaster (Fruit fly) SS
P00528 Src64B Tyrosine-protein kinase Src64B Drosophila melanogaster (Fruit fly) SS
Q9V9J3 Src42A Tyrosine-protein kinase Src42A Drosophila melanogaster (Fruit fly) SS
P41240 CSK Tyrosine-protein kinase CSK Homo sapiens (Human) SS
P51451 BLK Tyrosine-protein kinase Blk Homo sapiens (Human) SS
P06239 LCK Tyrosine-protein kinase Lck Homo sapiens (Human) EV
P23458 JAK1 Tyrosine-protein kinase JAK1 Homo sapiens (Human) SS
P06241 FYN Tyrosine-protein kinase Fyn Homo sapiens (Human) SS
P51813 BMX Cytoplasmic tyrosine-protein kinase BMX Homo sapiens (Human) SS
P12931 SRC Proto-oncogene tyrosine-protein kinase Src Homo sapiens (Human) EV
P09769 FGR Tyrosine-protein kinase Fgr Homo sapiens (Human) SS
P42680 TEC Tyrosine-protein kinase Tec Homo sapiens (Human) SS
O60674 JAK2 Tyrosine-protein kinase JAK2 Homo sapiens (Human) EV
P42679 MATK Megakaryocyte-associated tyrosine-protein kinase Homo sapiens (Human) SS
P52333 JAK3 Tyrosine-protein kinase JAK3 Homo sapiens (Human) SS
Q08881 ITK Tyrosine-protein kinase ITK/TSK Homo sapiens (Human) EV
P07948 LYN Tyrosine-protein kinase Lyn Homo sapiens (Human) SS
P29597 TYK2 Non-receptor tyrosine-protein kinase TYK2 Homo sapiens (Human) EV
Q13882 PTK6 Protein-tyrosine kinase 6 Homo sapiens (Human) EV
P08631 HCK Tyrosine-protein kinase HCK Homo sapiens (Human) EV
P42685 FRK Tyrosine-protein kinase FRK Homo sapiens (Human) EV
Q06187 BTK Tyrosine-protein kinase BTK Homo sapiens (Human) EV
P07947 YES1 Tyrosine-protein kinase Yes Homo sapiens (Human) SS
Q9R117 Tyk2 Non-receptor tyrosine-protein kinase TYK2 Mus musculus (Mouse) SS
Q62137 Jak3 Tyrosine-protein kinase JAK3 Mus musculus (Mouse) SS
Q62120 Jak2 Tyrosine-protein kinase JAK2 Mus musculus (Mouse) EV
P52332 Jak1 Tyrosine-protein kinase JAK1 Mus musculus (Mouse) SS
P05480 Src Proto-oncogene tyrosine-protein kinase Src Mus musculus (Mouse) EV
P06240 Lck Proto-oncogene tyrosine-protein kinase LCK Mus musculus (Mouse) SS
P14234 Fgr Tyrosine-protein kinase Fgr Mus musculus (Mouse) SS
P16277 Blk Tyrosine-protein kinase Blk Mus musculus (Mouse) SS
P35991 Btk Tyrosine-protein kinase BTK Mus musculus (Mouse) EV
P41241 Csk Tyrosine-protein kinase CSK Mus musculus (Mouse) EV
Q03526 Itk Tyrosine-protein kinase ITK/TSK Mus musculus (Mouse) SS
Q64434 Ptk6 Protein-tyrosine kinase 6 Mus musculus (Mouse) SS
Q922K9 Frk Tyrosine-protein kinase FRK Mus musculus (Mouse) SS
P48025 Syk Tyrosine-protein kinase SYK Mus musculus (Mouse) SS
P43404 Zap70 Tyrosine-protein kinase ZAP-70 Mus musculus (Mouse) SS
P25911 Lyn Tyrosine-protein kinase Lyn Mus musculus (Mouse) EV
P39688 Fyn Tyrosine-protein kinase Fyn Mus musculus (Mouse) SS
P08103 Hck Tyrosine-protein kinase HCK Mus musculus (Mouse) SS
P24604 Tec Tyrosine-protein kinase Tec Mus musculus (Mouse) SS
P41242 Matk Megakaryocyte-associated tyrosine-protein kinase Mus musculus (Mouse) SS
Q9QVP9 Ptk2b Protein-tyrosine kinase 2-beta Mus musculus (Mouse) PR
P34152 Ptk2 Focal adhesion kinase 1 Mus musculus (Mouse) SS
Q99ML2 Tnk1 Non-receptor tyrosine-protein kinase TNK1 Mus musculus (Mouse) PR
O54967 Tnk2 Activated CDC42 kinase 1 Mus musculus (Mouse) SS
P70451 Fer Tyrosine-protein kinase Fer Mus musculus (Mouse) PR
Q6J9G1 Styk1 Tyrosine-protein kinase STYK1 Mus musculus (Mouse) PR
P00520 Abl1 Tyrosine-protein kinase ABL1 Mus musculus (Mouse) EV
Q62270 Srms Tyrosine-protein kinase Srms Mus musculus (Mouse) SS
Q4JIM5 Abl2 Tyrosine-protein kinase ABL2 Mus musculus (Mouse) SS
A1Y2K1 FYN Tyrosine-protein kinase Fyn Sus scrofa (Pig) SS
O19064 JAK2 Tyrosine-protein kinase JAK2 Sus scrofa (Pig) SS
Q62662 Frk Tyrosine-protein kinase FRK Rattus norvegicus (Rat) SS
Q62844 Fyn Tyrosine-protein kinase Fyn Rattus norvegicus (Rat) SS
Q07014 Lyn Tyrosine-protein kinase Lyn Rattus norvegicus (Rat) SS
P50545 Hck Tyrosine-protein kinase HCK Rattus norvegicus (Rat) SS
Q9WUD9 Src Proto-oncogene tyrosine-protein kinase Src Rattus norvegicus (Rat) SS
Q01621 Lck Proto-oncogene tyrosine-protein kinase LCK Rattus norvegicus (Rat) SS
Q6P6U0 Fgr Tyrosine-protein kinase Fgr Rattus norvegicus (Rat) SS
Q62689 Jak2 Tyrosine-protein kinase JAK2 Rattus norvegicus (Rat) SS
Q63272 Jak3 Tyrosine-protein kinase JAK3 Rattus norvegicus (Rat) SS
P32577 Csk Tyrosine-protein kinase CSK Rattus norvegicus (Rat) SS
P41243 Matk Megakaryocyte-associated tyrosine-protein kinase Rattus norvegicus (Rat) SS
F1LM93 Yes1 Tyrosine-protein kinase Yes Rattus norvegicus (Rat) SS
G5ECJ6 csk-1 Tyrosine-protein kinase csk-1 Caenorhabditis elegans SS
O45539 src-2 Tyrosine protein-kinase src-2 Caenorhabditis elegans SS
G5EE56 src-1 Tyrosine protein-kinase src-1 Caenorhabditis elegans SS
Q2MHE4 HT1 Serine/threonine/tyrosine-protein kinase HT1 Arabidopsis thaliana (Mouse-ear cress) PR
O22558 STY8 Serine/threonine-protein kinase STY8 Arabidopsis thaliana (Mouse-ear cress) PR
Q8RWL6 STY17 Serine/threonine-protein kinase STY17 Arabidopsis thaliana (Mouse-ear cress) PR
F4JTP5 STY46 Serine/threonine-protein kinase STY46 Arabidopsis thaliana (Mouse-ear cress) PR
F1RDG9 fynb Tyrosine-protein kinase fynb Danio rerio (Zebrafish) (Brachydanio rerio) SS
O12990 jak1 Tyrosine-protein kinase JAK1 Danio rerio (Zebrafish) (Brachydanio rerio) PR
Q1JPZ3 src Proto-oncogene tyrosine-protein kinase Src Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q6EWH2 fyna Tyrosine-protein kinase fyna Danio rerio (Zebrafish) (Brachydanio rerio) SS
A1A5H8 yes1 Tyrosine-protein kinase yes Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MGCIKSKENK SPAIKYTPEN LTEPVSPSAS HYGVEHATVA PTSSTKGASV NFNSLSMTPF
70 80 90 100 110 120
GGSSGVTPFG GASSSFSVVS SSYPTGLTGG VTIFVALYDY EARTTEDLSF KKGERFQIIN
130 140 150 160 170 180
NTEGDWWEAR SIATGKSGYI PSNYVVPADS IQAEEWYFGK MGRKDAERLL LNPGNQRGIF
190 200 210 220 230 240
LVRESETTKG AYSLSIRDWD EVRGDNVKHY KIRKLDNGGY YITTRAQFDT LQKLVKHYTE
250 260 270 280 290 300
HADGLCHKLT TVCPTVKPQT QGLAKDAWEI PRESLRLEVK LGQGCFGEVW MGTWNGTTKV
310 320 330 340 350 360
AIKTLKPGTM MPEAFLQEAQ IMKKLRHDKL VPLYAVVSEE PIYIVTEFMS KGSLLDFLKE
370 380 390 400 410 420
GDGKYLKLPQ LVDMAAQIAD GMAYIERMNY IHRDLRAANI LVGENLICKI ADFGLARLIE
430 440 450 460 470 480
DNEYTARQGA KFPIKWTAPE AALYGRFTIK SDVWSFGILQ TELVTKGRVP YPGMVNREVL
490 500 510 520 530 540
EQVERGYRMP CPQGCPESLH ELMNLCWKKD PDERPTFEYI QSFLEDYFTA TEPQYQPGEN
L