Descriptions

JAK2 is tyrosine-protein kinase which mediates essential signaling events in both innate and adaptive immunity. JH2 domain inhibits its partnering JAK2 monomer. V617F substitution and autophosphorylation of Y570, located in the pseudokinase domain, relieves the autoinhibition of JAK2's kinase activity. The JAK2 pseudokinase domain negatively regulates the activity of JAK2. Kinase augments downstream JAK2-STAT signaling pathways are constitutively activated by the autoinhibition.

Autoinhibitory domains (AIDs)

Target domain

874-1153 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

874-1153 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

874-1153 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Accessory elements

1019-1045 (Activation loop from InterPro)

Target domain

874-1152 (Protein kinase domain)

Relief mechanism

Assay

1019-1045 (Activation loop from InterPro)

Target domain

874-1152 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

3 structures for P52332

Entry ID Method Resolution Chain Position Source
7T6F EM 360 A A/B 1-1153 PDB
8EWY EM 550 A A/B 1-1153 PDB
AF-P52332-F1 Predicted AlphaFoldDB

No variants for P52332

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P52332

No associated diseases with P52332

14 regional properties for P52332

Type Name Position InterPro Accession
domain Protein kinase domain 825 - 1097 IPR000719
domain EGF-like domain 216 - 252 IPR000742-1
domain EGF-like domain 267 - 299 IPR000742-2
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 825 - 1092 IPR001245
domain Laminin-type EGF domain 230 - 275 IPR002049-1
domain Laminin-type EGF domain 314 - 342 IPR002049-2
domain Fibronectin type III 444 - 541 IPR003961-1
domain Fibronectin type III 543 - 637 IPR003961-2
domain Fibronectin type III 640 - 735 IPR003961-3
domain Immunoglobulin-like domain 350 - 440 IPR007110
active_site Tyrosine-protein kinase, active site 961 - 973 IPR008266
binding_site Protein kinase, ATP binding site 831 - 856 IPR017441
domain Tyrosine-protein kinase, receptor Tie-2, Ig-like domain 1, N-terminal 24 - 118 IPR018941
domain Tyrosine-protein kinase, catalytic domain 825 - 1093 IPR020635

Functions

Description
EC Number 2.7.10.2 Protein-tyrosine kinases
Subcellular Localization
  • Endomembrane system; Peripheral membrane protein
  • Wholly intracellular, possibly membrane associated
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
cytoskeleton A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
endomembrane system A collection of membranous structures involved in transport within the cell. The main components of the endomembrane system are endoplasmic reticulum, Golgi bodies, vesicles, cell membrane and nuclear envelope. Members of the endomembrane system pass materials through each other or though the use of vesicles.
membrane A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.

6 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
CCR5 chemokine receptor binding Binding to a CCR5 chemokine receptor.
growth hormone receptor binding Binding to a growth hormone receptor.
metal ion binding Binding to a metal ion.
non-membrane spanning protein tyrosine kinase activity Catalysis of the reaction
protein tyrosine kinase activity Catalysis of the reaction

12 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 interleukin-3 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 an interleukin-3 stimulus.
cellular response to interleukin-7 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 an interleukin-7 stimulus.
cytokine-mediated signaling pathway The series of molecular signals initiated by the binding of a cytokine to a receptor on the surface of a cell, and ending with the regulation of a downstream cellular process, e.g. transcription.
enzyme-linked receptor protein 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 catalytic activity or is closely associated with an enzyme such as a protein kinase, and ending with the regulation of a downstream cellular process, e.g. transcription.
growth hormone receptor signaling pathway via JAK-STAT The process in which STAT proteins (Signal Transducers and Activators of Transcription) are activated by members of the JAK (janus activated kinase) family of tyrosine kinases, following the binding of physiological ligands to the growth hormone receptor. Once activated, STATs dimerize and translocate to the nucleus and modulate the expression of target genes.
interleukin-2-mediated signaling pathway The series of molecular signals initiated by interleukin-2 binding to its receptor on the surface of a cell, and ending with the regulation of a downstream cellular process, e.g. transcription.
intracellular signal transduction The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
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 receptor signaling pathway via STAT Any process that activates or increases the frequency, rate or extent of receptor signaling pathway via STAT.
receptor signaling pathway via JAK-STAT Any process in which STAT proteins (Signal Transducers and Activators of Transcription) and JAK (Janus Activated Kinase) proteins convey a signal to trigger a change in the activity or state of a cell. The receptor signaling pathway via JAK-STAT begins with activation of a receptor and proceeeds through STAT protein activation by members of the JAK family of tyrosine kinases. STAT proteins dimerize and subsequently translocate to the nucleus. The pathway ends with regulation of target gene expression by STAT proteins.
response to antibiotic Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.

76 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
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
Q24592 hop Tyrosine-protein kinase hopscotch Drosophila melanogaster (Fruit fly) PR
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
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
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
P23458 JAK1 Tyrosine-protein kinase JAK1 Homo sapiens (Human) SS
P08103 Hck Tyrosine-protein kinase HCK 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
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
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
Q62120 Jak2 Tyrosine-protein kinase JAK2 Mus musculus (Mouse) EV
Q62137 Jak3 Tyrosine-protein kinase JAK3 Mus musculus (Mouse) SS
Q9R117 Tyk2 Non-receptor tyrosine-protein kinase TYK2 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
O45539 src-2 Tyrosine protein-kinase src-2 Caenorhabditis elegans SS
G5ECJ6 csk-1 Tyrosine-protein kinase csk-1 Caenorhabditis elegans SS
G5EE56 src-1 Tyrosine protein-kinase src-1 Caenorhabditis elegans SS
A1A5H8 yes1 Tyrosine-protein kinase yes Danio rerio (Zebrafish) (Brachydanio rerio) SS
F1RDG9 fynb Tyrosine-protein kinase fynb Danio rerio (Zebrafish) (Brachydanio rerio) SS
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
O12990 jak1 Tyrosine-protein kinase JAK1 Danio rerio (Zebrafish) (Brachydanio rerio) PR
10 20 30 40 50 60
MQYLNIKEDC NAMAFCAKMR SFKKTEVKQV VPEPGVEVTF YLLDREPLRL GSGEYTAEEL
70 80 90 100 110 120
CIRAAQECSI SPLCHNLFAL YDESTKLWYA PNRIITVDDK TSLRLHYRMR FYFTNWHGTN
130 140 150 160 170 180
DNEQSVWRHS PKKQKNGYEK KRVPEATPLL DASSLEYLFA QGQYDLIKCL APIRDPKTEQ
190 200 210 220 230 240
DGHDIENECL GMAVLAISHY AMMKKMQLPE LPKDISYKRY IPETLNKSIR QRNLLTRMRI
250 260 270 280 290 300
NNVFKDFLKE FNNKTICDSS VHDLKVKYLA TLETSTLTKH YGAEIFETSM LLISSENELS
310 320 330 340 350 360
RCHSNDSGNV LYEVMVTGNL GIQWRQKPNV VPVEKEKNKL KRKKLEYNKH KKDDERNKLR
370 380 390 400 410 420
EEWNNFSYFP EITHIVIKES VVSINKQDNK NMELKLSSRE EALSFVSLVD GYFRLTADAH
430 440 450 460 470 480
HYLCTDVAPP LIVHNIQNGC HGPICTEYAI NKLRQEGSEE GMYVLRWSCT DFDNILMTVT
490 500 510 520 530 540
CFEKSEVLGG QKQFKNFQIE VQKGRYSLHG SMDHFPSLRD LMNHLKKQIL RTDNISFVLK
550 560 570 580 590 600
RCCQPKPREI SNLLVATKKA QEWQPVYSMS QLSFDRILKK DIIQGEHLGR GTRTHIYSGT
610 620 630 640 650 660
LLDYKDEEGI AEEKKIKVIL KVLDPSHRDI SLAFFEAASM MRQVSHKHIV YLYGVCVRDV
670 680 690 700 710 720
ENIMVEEFVE GGPLDLFMHR KSDALTTPWK FKVAKQLASA LSYLEDKDLV HGNVCTKNLL
730 740 750 760 770 780
LAREGIDSDI GPFIKLSDPG IPVSVLTRQE CIERIPWIAP ECVEDSKNLS VAADKWSFGT
790 800 810 820 830 840
TLWEICYNGE IPLKDKTLIE KERFYESRCR PVTPSCKELA DLMTRCMNYD PNQRPFFRAI
850 860 870 880 890 900
MRDINKLEEQ NPDIVSEKQP TTEVDPTHFE KRFLKRIRDL GEGHFGKVEL CRYDPEGDNT
910 920 930 940 950 960
GEQVAVKSLK PESGGNHIAD LKKEIEILRN LYHENIVKYK GICMEDGGNG IKLIMEFLPS
970 980 990 1000 1010 1020
GSLKEYLPKN KNKINLKQQL KYAIQICKGM DYLGSRQYVH RDLAARNVLV ESEHQVKIGD
1030 1040 1050 1060 1070 1080
FGLTKAIETD KEYYTVKDDR DSPVFWYAPE CLIQCKFYIA SDVWSFGVTL HELLTYCDSD
1090 1100 1110 1120 1130 1140
FSPMALFLKM IGPTHGQMTV TRLVKTLKEG KRLPCPPNCP DEVYQLMRKC WEFQPSNRTT
1150
FQNLIEGFEA LLK