Descriptions

Jak2 is a member of the Janus (Jak) family of non-receptor protein tyrosine kinases (Jak1, Jak2, Jak3, and Tyk2) and is crucial in signaling through multiple cytokine receptors. Jak2 has a kinase domain (JH1) and pseudokinase domain (JH2). JH2 has three regions for autoinhibition of JH1: IR3 (758-807) directly inhibits JH1, and IR2 (725-757) and IR1 (619-670) enhances IR3-mediated inhibition of JH1.

Autoinhibitory domains (AIDs)

Target domain

818-1098 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

818-1098 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

818-1098 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q62137

Entry ID Method Resolution Chain Position Source
AF-Q62137-F1 Predicted AlphaFoldDB

No variants for Q62137

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q62137

No associated diseases with Q62137

11 regional properties for Q62137

Type Name Position InterPro Accession
domain Protein kinase domain 12 - 278 IPR000719
domain SH3 domain 582 - 651 IPR001452
domain PDZ domain 493 - 576 IPR001478
domain L27 domain 343 - 400 IPR004172-1
domain L27 domain 402 - 464 IPR004172-2
domain Guanylate kinase-like domain 711 - 883 IPR008144
domain Guanylate kinase/L-type calcium channel beta subunit 710 - 886 IPR008145
domain L27 domain, C-terminal 347 - 397 IPR014775-1
domain L27 domain, C-terminal 406 - 461 IPR014775-2
conserved_site Guanylate kinase, conserved site 746 - 763 IPR020590
domain CASK, SH3 domain 586 - 646 IPR035473

Functions

Description
EC Number 2.7.10.- Protein-tyrosine kinases
Subcellular Localization
  • Endomembrane system ; Peripheral membrane protein
  • Cytoplasm
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

5 GO annotations of cellular component

Name Definition
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
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.

4 GO annotations of molecular function

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

35 GO annotations of biological process

Name Definition
adaptive immune response An immune response mediated by cells expressing specific receptors for antigens produced through a somatic diversification process, and allowing for an enhanced secondary response to subsequent exposures to the same antigen (immunological memory).
B cell differentiation The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity.
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 cytokine 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 cytokine 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.
innate immune response Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
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.
lymph node development The process whose specific outcome is the progression of lymph nodes over time, from their formation to the mature structure. A lymph node is a round, oval, or bean shaped structure localized in clusters along the lymphatic vessels, with a distinct internal structure including specialized vasculature and B- and T-zones for the activation of lymphocytes.
negative regulation of dendritic cell cytokine production Any process that stops, prevents, or reduces the frequency, rate, or extent of dendritic cell cytokine production.
negative regulation of FasL production Any process that stops, prevents, or reduces the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of FasL.
negative regulation of interleukin-10 production Any process that stops, prevents, or reduces the frequency, rate, or extent of interleukin-10 production.
negative regulation of interleukin-12 production Any process that stops, prevents, or reduces the frequency, rate, or extent of interleukin-12 production.
negative regulation of T cell activation Any process that stops, prevents, or reduces the frequency, rate or extent of T cell activation.
negative regulation of T-helper 1 cell differentiation Any process that stops, prevents, or reduces the frequency, rate or extent of T-helper 1 cell differentiation.
negative regulation of thymocyte apoptotic process Any process that stops, prevents, or reduces the frequency, rate or extent of thymocyte death by apoptotic process.
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 activated T cell proliferation Any process that activates or increases the rate or extent of activated T cell proliferation.
positive regulation of calcium ion transport Any process that activates or increases the frequency, rate or extent of the directed movement of calcium ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
positive regulation of cytosolic calcium ion concentration Any process that increases the concentration of calcium ions in the cytosol.
positive regulation of dendritic cell apoptotic process Any process that activates or increases the frequency, rate or extent of dendritic cell apoptotic process.
positive regulation of extrinsic apoptotic signaling pathway in absence of ligand Any process that activates or increases the frequency, rate or extent of extrinsic apoptotic signaling pathway in absence of ligand.
positive regulation of nitric-oxide synthase biosynthetic process Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of a nitric oxide synthase enzyme.
positive regulation of T cell proliferation Any process that activates or increases the rate or extent of T cell proliferation.
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.
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.
regulation of apoptotic process Any process that modulates the occurrence or rate of cell death by apoptotic process.
regulation of T cell apoptotic process Any process that modulates the occurrence or rate of T cell death by apoptotic process.
response to interleukin-15 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 interleukin-15 stimulus.
response to interleukin-2 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 interleukin-2 stimulus.
response to interleukin-4 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 interleukin-4 stimulus.
response to interleukin-9 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 interleukin-9 stimulus.
T cell homeostasis The process of regulating the proliferation and elimination of T cells such that the total number of T cells within a whole or part of an organism is stable over time in the absence of an outside stimulus.
transcription by RNA polymerase II The synthesis of RNA from a DNA template by RNA polymerase II (RNAP II), originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs).

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
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
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
P52333 JAK3 Tyrosine-protein kinase JAK3 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
Q9R117 Tyk2 Non-receptor tyrosine-protein kinase TYK2 Mus musculus (Mouse) SS
Q62120 Jak2 Tyrosine-protein kinase JAK2 Mus musculus (Mouse) EV
P52332 Jak1 Tyrosine-protein kinase JAK1 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
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
Q63272 Jak3 Tyrosine-protein kinase JAK3 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
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
MAPPSEETPL IPQRSCSLSS SEAGALHVLL PPRGPGPPQR LSFSFGDYLA EDLCVRAAKA
70 80 90 100 110 120
CGILPVYHSL FALATEDFSC WFPPSHIFCI EDVDTQVLVY RLRFYFPDWF GLETCHRFGL
130 140 150 160 170 180
RKDLTSAILD LHVLEHLFAQ HRSDLVSGRL PVGLSMKEQG EFLSLAVLDL AQMAREQAQR
190 200 210 220 230 240
PGELLKTVSY KACLPPSLRD VIQGQNFVTR RRIRRTVVLA LRRVVACQAD RYALMAKYIL
250 260 270 280 290 300
DLERLHPAAT TETFRVGLPG AQEEPGLLRV AGDNGISWSS GDQELFQTFC DFPEIVDVSI
310 320 330 340 350 360
KQAPRVGPAG EHRLVTVTRM DGHILEAEFP GLPEALSFVA LVDGYFRLIC DSRHYFCKEV
370 380 390 400 410 420
APPRLLEEEA ELCHGPITLD FAIHKLKAAG SLPGTYILRR SPQDYDSFLL TACVQTPLGP
430 440 450 460 470 480
DYKGCLIRQD PSGAFSLVGL SQPHRSLREL LAACWNSGLR VDGAALNLTS CCAPRPKEKS
490 500 510 520 530 540
NLIVVRRGCT PAPAPGCSPS CCALTQLSFH TIPTDSLEWH ENLGHGSFTK IFRGRRREVV
550 560 570 580 590 600
DGETHDSEVL LKVMDSRHRN CMESFLEAAS LMSQVSYPHL VLLHGVCMAG DSIMVQEFVY
610 620 630 640 650 660
LGAIDMYLRK RGHLVSASWK LQVTKQLAYA LNYLEDKGLP HGNVSARKVL LAREGGDGNP
670 680 690 700 710 720
PFIKLSDPGV SPTVLSLEML TDRIPWVAPE CLQEAQTLCL EADKWGFGAT TWEVFSGGPA
730 740 750 760 770 780
HITSLEPAKK LKFYEDQGQL PALKWTELAG LITQCMAYDP GRRPSFRAIL RDLNGLITSD
790 800 810 820 830 840
YELLSDPTPG IPSPRDELCG GAQLYACQDP AIFEERHLKY ISLLGKGNFG SVELCRYDPL
850 860 870 880 890 900
GDNTGPLVAV KQLQHSGPDQ QRDFQREIQI LKALHSDFIV KYRGVSYGPG RQSLRLVMEY
910 920 930 940 950 960
LPSGCLRDFL QRHRARLHTD RLLLFAWQIC KGMEYLGARR CVHRDLAARN ILVESEAHVK
970 980 990 1000 1010 1020
IADFGLAKLL PLGKDYYVVR EPGQSPIFWY APESLSDNIF SRQSDVWSFG VVLYELFTYC
1030 1040 1050 1060 1070 1080
DKSCSPSAEF LRMMGPEREG PPLCRLLELL AEGRRLPPPP TCPTEVQELM QLCWAPSPHD
1090
RPAFGTLSPQ LDALWRGRPG