Descriptions

Tyrosine-protein kinase Hck is a member of the Src family kinases, and the control of Hck activity is essential for normal cellular function. It contains modular SH3 and SH2 domains, a regulatory linker (SH2-CD linker), the catalytic or kinase domain (SH1 domain), and a C-terminal negative regulatory tail. The SH3 and SH2-CD linker domains work together to downregulate kinase activity by engaging their intramolecular ligands (SH2 binds to the linker and SH2 binds to the tail). Kinase activity is also regulated by phosphorylation at regulatory tyrosine residues in C-terminal regulatory tail. Phosphorylation at Tyr-409 is required for optimal activity, and the phosphorylation at Tyr-520 inhibits kinase activity.

Autoinhibitory domains (AIDs)

Target domain

260-508 (Protein kinase domain)

Relief mechanism

Partner binding, Ligand binding

Assay

Target domain

260-508 (Protein kinase domain)

Relief mechanism

PTM

Assay

Target domain

260-508 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Target domain

260-508 (Protein kinase domain)

Relief mechanism

PTM

Assay

Accessory elements

No accessory elements

References

Autoinhibited structure

Activated structure

1 structures for P50545

Entry ID Method Resolution Chain Position Source
AF-P50545-F1 Predicted AlphaFoldDB

No variants for P50545

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P50545

No associated diseases with P50545

8 regional properties for P50545

Type Name Position InterPro Accession
domain AGC-kinase, C-terminal 357 - 425 IPR000961
domain Pleckstrin homology domain 1150 - 1351 IPR001849
active_site Serine/threonine-protein kinase, active site 210 - 222 IPR008271
domain HR1 rho-binding domain 497 - 573 IPR011072
domain ROCK, Rho binding domain 978 - 1047 IPR015008
binding_site Protein kinase, ATP binding site 98 - 121 IPR017441
domain Rho-associated protein kinase 2, catalytic domain 39 - 417 IPR029878
domain Rho-associated protein kinase 2, HR1 domain 505 - 571 IPR037311

Functions

Description
EC Number 2.7.10.2 Protein-tyrosine kinases
Subcellular Localization
  • Cytoplasmic vesicle, secretory vesicle
  • Cytoplasm, cytosol
  • ;
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

10 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.
caveola A membrane raft that forms small pit, depression, or invagination that communicates with the outside of a cell and extends inward, indenting the cytoplasm and the cell membrane. Examples include flask-shaped invaginations of the plasma membrane in adipocytes associated with caveolin proteins, and minute pits or incuppings of the cell membrane formed during pinocytosis. Caveolae may be pinched off to form free vesicles within the cytoplasm.
cell projection A prolongation or process extending from a cell, e.g. a flagellum or axon.
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.
focal adhesion A cell-substrate junction that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments. In insects focal adhesion has also been referred to as hemi-adherens junction (HAJ).
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.
lysosome A small lytic vacuole that has cell cycle-independent morphology found in most animal cells and that contains a variety of hydrolases, most of which have their maximal activities in the pH range 5-6. The contained enzymes display latency if properly isolated. About 40 different lysosomal hydrolases are known and lysosomes have a great variety of morphologies and functions.
nucleus A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
transport vesicle Any of the vesicles of the constitutive secretory pathway, which carry cargo from the endoplasmic reticulum to the Golgi, between Golgi cisternae, from the Golgi to the ER (retrograde transport) or to destinations within or outside the cell.

6 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
non-membrane spanning protein tyrosine kinase activity Catalysis of the reaction: ATP + protein L-tyrosine = ADP + protein L-tyrosine phosphate by a non-membrane spanning protein.
phosphotyrosine residue binding Binding to a phosphorylated tyrosine residue within a protein.
protein serine/threonine/tyrosine kinase activity Catalysis of the reactions: ATP + a protein serine = ADP + protein serine phosphate; ATP + a protein threonine = ADP + protein threonine phosphate; and ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
protein tyrosine kinase activity Catalysis of the reaction: ATP + a protein tyrosine = ADP + protein tyrosine phosphate.
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.

16 GO annotations of biological process

Name Definition
cell differentiation The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
defense response to Gram-positive bacterium Reactions triggered in response to the presence of a Gram-positive bacterium that act to protect the cell or organism.
exocytosis A process of secretion by a cell that results in the release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle. Exocytosis can occur either by full fusion, when the vesicle collapses into the plasma membrane, or by a kiss-and-run mechanism that involves the formation of a transient contact, a pore, between a granule (for exemple of chromaffin cells) and the plasma membrane. The latter process most of the time leads to only partial secretion of the granule content. Exocytosis begins with steps that prepare vesicles for fusion with the membrane (tethering and docking) and ends when molecules are secreted from the cell.
inflammatory response The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
innate immune response Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
negative regulation of apoptotic process Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
peptidyl-tyrosine phosphorylation The phosphorylation of peptidyl-tyrosine to form peptidyl-O4'-phospho-L-tyrosine.
phagocytosis A vesicle-mediated transport process that results in the engulfment of external particulate material by phagocytes and their delivery to the lysosome. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles.
positive regulation of actin cytoskeleton reorganization Any process that activates or increases the frequency, rate or extent of actin cytoskeleton reorganization.
positive regulation of cell population proliferation Any process that activates or increases the rate or extent of cell proliferation.
protein autophosphorylation The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
regulation of cell shape Any process that modulates the surface configuration of a cell.
regulation of DNA-binding transcription factor activity Any process that modulates the frequency, rate or extent of the activity of a transcription factor, any factor involved in the initiation or regulation of transcription.
regulation of phagocytosis Any process that modulates the frequency, rate or extent of phagocytosis, the process in which phagocytes engulf external particulate material.
regulation of podosome assembly Any process that modulates the frequency, rate or extent of podosome assembly.
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.

84 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
P09324 YES1 Tyrosine-protein kinase Yes Gallus gallus (Chicken) SS
Q05876 FYN Tyrosine-protein kinase Fyn Gallus gallus (Chicken) SS
Q75R65 JAK2 Tyrosine-protein kinase JAK2 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
Q9V9J3 Src42A Tyrosine-protein kinase Src42A Drosophila melanogaster (Fruit fly) SS
P00528 Src64B Tyrosine-protein kinase Src64B 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
P07947 YES1 Tyrosine-protein kinase Yes Homo sapiens (Human) SS
P42685 FRK Tyrosine-protein kinase FRK Homo sapiens (Human) EV
Q06187 BTK Tyrosine-protein kinase BTK Homo sapiens (Human) EV
P08631 HCK Tyrosine-protein kinase HCK Homo sapiens (Human) EV
Q9R117 Tyk2 Non-receptor tyrosine-protein kinase TYK2 Mus musculus (Mouse) SS
P16277 Blk Tyrosine-protein kinase Blk Mus musculus (Mouse) SS
Q62270 Srms Tyrosine-protein kinase Srms Mus musculus (Mouse) SS
Q64434 Ptk6 Protein-tyrosine kinase 6 Mus musculus (Mouse) SS
P05480 Src Proto-oncogene tyrosine-protein kinase Src Mus musculus (Mouse) EV
P14234 Fgr Tyrosine-protein kinase Fgr Mus musculus (Mouse) SS
P35991 Btk Tyrosine-protein kinase BTK Mus musculus (Mouse) EV
P41241 Csk Tyrosine-protein kinase CSK Mus musculus (Mouse) EV
P25911 Lyn Tyrosine-protein kinase Lyn Mus musculus (Mouse) EV
Q62137 Jak3 Tyrosine-protein kinase JAK3 Mus musculus (Mouse) SS
Q62120 Jak2 Tyrosine-protein kinase JAK2 Mus musculus (Mouse) EV
P06240 Lck Proto-oncogene tyrosine-protein kinase LCK Mus musculus (Mouse) SS
P24604 Tec Tyrosine-protein kinase Tec Mus musculus (Mouse) SS
Q04736 Yes1 Tyrosine-protein kinase Yes Mus musculus (Mouse) SS
P39688 Fyn Tyrosine-protein kinase Fyn Mus musculus (Mouse) SS
P52332 Jak1 Tyrosine-protein kinase JAK1 Mus musculus (Mouse) SS
Q03526 Itk Tyrosine-protein kinase ITK/TSK Mus musculus (Mouse) SS
P41242 Matk Megakaryocyte-associated tyrosine-protein kinase Mus musculus (Mouse) SS
Q922K9 Frk Tyrosine-protein kinase FRK Mus musculus (Mouse) SS
P08103 Hck Tyrosine-protein kinase HCK Mus musculus (Mouse) SS
A1Y2K1 FYN Tyrosine-protein kinase Fyn Sus scrofa (Pig) SS
O19064 JAK2 Tyrosine-protein kinase JAK2 Sus scrofa (Pig) SS
Q62689 Jak2 Tyrosine-protein kinase JAK2 Rattus norvegicus (Rat) SS
Q63272 Jak3 Tyrosine-protein kinase JAK3 Rattus norvegicus (Rat) SS
Q64725 Syk Tyrosine-protein kinase SYK Rattus norvegicus (Rat) SS
Q6P6U0 Fgr Tyrosine-protein kinase Fgr Rattus norvegicus (Rat) SS
Q07014 Lyn Tyrosine-protein kinase Lyn Rattus norvegicus (Rat) SS
Q62844 Fyn Tyrosine-protein kinase Fyn Rattus norvegicus (Rat) SS
Q9WUD9 Src Proto-oncogene tyrosine-protein kinase Src Rattus norvegicus (Rat) SS
F1LM93 Yes1 Tyrosine-protein kinase Yes Rattus norvegicus (Rat) SS
Q62662 Frk Tyrosine-protein kinase FRK Rattus norvegicus (Rat) SS
P41243 Matk Megakaryocyte-associated tyrosine-protein kinase Rattus norvegicus (Rat) SS
P32577 Csk Tyrosine-protein kinase CSK Rattus norvegicus (Rat) SS
P70600 Ptk2b Protein-tyrosine kinase 2-beta Rattus norvegicus (Rat) PR
O35346 Ptk2 Focal adhesion kinase 1 Rattus norvegicus (Rat) SS
Q5U2X5 Tnk2 Activated CDC42 kinase 1 Rattus norvegicus (Rat) SS
Q01621 Lck Proto-oncogene tyrosine-protein kinase LCK Rattus norvegicus (Rat) SS
P09760 Fer Tyrosine-protein kinase Fer Rattus norvegicus (Rat) PR
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
F4JTP5 STY46 Serine/threonine-protein kinase STY46 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
A1A5H8 yes1 Tyrosine-protein kinase yes Danio rerio (Zebrafish) (Brachydanio rerio) SS
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
10 20 30 40 50 60
MGGRSSCEDP GCPRGEGRVP RMGCVKSRFL REGSKASKIE PNANQKGPVY VPDPTSPKKL
70 80 90 100 110 120
GPNSINSLPP GVVEGSEDTI VVALYDYEAI HREDLSFQKG DQMVVLEESG EWWKARSLAT
130 140 150 160 170 180
KKEGYIPSNY VARVNSLETE EWFFKGISRK DAERHLLAPG NMLGSFMIRD SETTKGSYSL
190 200 210 220 230 240
SVRDFDPQHG DTVKHYKIRT LDSGGFYISP RSTFSSLQEL VVHYKKGKDG LCQKLSVPCV
250 260 270 280 290 300
SPKPQKPWEK DAWEIPRESL QMEKKLGAGQ FGEVWMATYN KHTKVAVKTM KPGSMSVEAF
310 320 330 340 350 360
LAEANLMKTL QHDKLVKLHA VVSQEPIFIV TEFMAKGSLL DFLKSEEGSK QPLPKLIDFS
370 380 390 400 410 420
AQISEGMAFI EQRNYIHRDL RAANILVSAS LVCKIADFGL ARIIEDNEYT AREGAKFPIK
430 440 450 460 470 480
WTAPEAINFG SFTIKSDVWS FGILLMEIVT YGRIPYPGMS NPEVIRALEH GYRMPRPDNC
490 500 510 520
PEELYSIMIR CWKNRPEERP TFEYIQSVLD DFYTATESQY QQQP