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

846-1127 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

846-1127 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Target domain

846-1127 (Protein kinase domain)

Relief mechanism

Partner binding

Assay

Accessory elements

695-714 (Activation loop from InterPro)

Target domain

542-803 (Janus kinase 2, pseudokinase domain)

Relief mechanism

Assay

990-1016 (Activation loop from InterPro)

Target domain

841-1124 (Janus kinase 2, catalytic domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for Q75R65

Entry ID Method Resolution Chain Position Source
AF-Q75R65-F1 Predicted AlphaFoldDB

No variants for Q75R65

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q75R65

3 associated diseases with Q75R65

[MIM: 612245]: Inflammatory bowel disease 14 (IBD14)

A chronic, relapsing inflammation of the gastrointestinal tract with a complex etiology. It is subdivided into Crohn disease and ulcerative colitis phenotypes. Crohn disease may affect any part of the gastrointestinal tract from the mouth to the anus, but most frequently it involves the terminal ileum and colon. Bowel inflammation is transmural and discontinuous; it may contain granulomas or be associated with intestinal or perianal fistulas. In contrast, in ulcerative colitis, the inflammation is continuous and limited to rectal and colonic mucosal layers, fistulas and granulomas are not observed. Both diseases include extraintestinal inflammation of the skin, eyes, or joints. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.

[MIM: 612251]: Systemic lupus erythematosus 10 (SLEB10)

A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.

[MIM: 180300]: Rheumatoid arthritis (RA)

An inflammatory disease with autoimmune features and a complex genetic component. It primarily affects the joints and is characterized by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.

Without disease ID
  • A chronic, relapsing inflammation of the gastrointestinal tract with a complex etiology. It is subdivided into Crohn disease and ulcerative colitis phenotypes. Crohn disease may affect any part of the gastrointestinal tract from the mouth to the anus, but most frequently it involves the terminal ileum and colon. Bowel inflammation is transmural and discontinuous; it may contain granulomas or be associated with intestinal or perianal fistulas. In contrast, in ulcerative colitis, the inflammation is continuous and limited to rectal and colonic mucosal layers, fistulas and granulomas are not observed. Both diseases include extraintestinal inflammation of the skin, eyes, or joints. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.
  • A chronic, relapsing, inflammatory, and often febrile multisystemic disorder of connective tissue, characterized principally by involvement of the skin, joints, kidneys and serosal membranes. It is of unknown etiology, but is thought to represent a failure of the regulatory mechanisms of the autoimmune system. The disease is marked by a wide range of system dysfunctions, an elevated erythrocyte sedimentation rate, and the formation of LE cells in the blood or bone marrow. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.
  • An inflammatory disease with autoimmune features and a complex genetic component. It primarily affects the joints and is characterized by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. . Note=Disease susceptibility is associated with variants affecting the gene represented in this entry.

4 regional properties for Q75R65

Type Name Position InterPro Accession
domain Protein kinase domain 186 - 448 IPR000719
domain AGC-kinase, C-terminal 449 - 528 IPR000961
domain RGS domain 52 - 171 IPR016137
binding_site Protein kinase, ATP binding site 192 - 224 IPR017441

Functions

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

5 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.
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.

7 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.
heme binding Binding to a heme, a compound composed of iron complexed in a porphyrin (tetrapyrrole) ring.
histone binding Binding to a histone, any of a group of water-soluble proteins found in association with the DNA of eukaryotic or archaeal chromosomes. They are involved in the condensation and coiling of chromosomes during cell division and have also been implicated in gene regulation and DNA replication. They may be chemically modified (methylated, acetlyated and others) to regulate gene transcription.
histone H3Y41 kinase activity Catalysis of the reaction
non-membrane spanning protein tyrosine kinase activity Catalysis of the reaction
protein tyrosine kinase activity Catalysis of the reaction

11 GO annotations of biological process

Name Definition
activation of Janus kinase activity The process of introducing a phosphate group to a tyrosine residue of a JAK (Janus Activated Kinase) protein, thereby activating it.
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.
erythrocyte differentiation The process in which a myeloid precursor cell acquires specializes features of an erythrocyte.
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.
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.
positive regulation of cell population proliferation Any process that activates or increases the rate or extent of cell proliferation.
post-translational protein modification The process of covalently altering one or more amino acids in a protein after the protein has been completely translated and released from the ribosome.
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).
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.
signal transduction The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

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
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
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
O60674 JAK2 Tyrosine-protein kinase JAK2 Homo sapiens (Human) EV
Q9R117 Tyk2 Non-receptor tyrosine-protein kinase TYK2 Mus musculus (Mouse) 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
Q62137 Jak3 Tyrosine-protein kinase JAK3 Mus musculus (Mouse) SS
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
Q62120 Jak2 Tyrosine-protein kinase JAK2 Mus musculus (Mouse) EV
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
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
Q62689 Jak2 Tyrosine-protein kinase JAK2 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
MACLTMANIE GSATATVHQN GDILGNTSAP KQTEPLLQVY LYYSPGKTGG DYLQFPAGEY
70 80 90 100 110 120
VAEEICIVAC KACGIMPVYH NMFALMSETE RVWYPPNHIF HVDEATRLKL LYRIRFYFPH
130 140 150 160 170 180
WYCNGTSRAC RYGIIRGSES PVLDDLVMSY LFAQWRKDFL DGWIQMPVTH ETQEECLGMA
190 200 210 220 230 240
VLDMMRVAKE KDQTPLAVYN SVSYKMFLPK CVRAKIQEYH ILTRKRIRYR FRKFIQQFGQ
250 260 270 280 290 300
CKATARNLKL KYLINLETLQ SAFYSEVFEV KEPGGDPSGE ESFATIVITG NGGIQCSRGK
310 320 330 340 350 360
LKNCETLAEQ DLQTYCDFPD IIDVSIKQAS QEGSSERRIV TIHKQDSKNL EAEFQSLREA
370 380 390 400 410 420
LSFVSLIDGY YRLTADAHHY LCKEVAPPSV LENIQSNCHG PIFMDFAINK LKKAGNQTGF
430 440 450 460 470 480
YVLRCSPKDF KKYFLTFAIE RENATDYKHC LITKNENGEY NLSGTKRSFG NLKDLLTCYQ
490 500 510 520 530 540
TETVRSDSII FQFIKCCPPK PKDKSNLLVF RSNSVSDVPS SPTLQRHNVS QMVFHKIRNE
550 560 570 580 590 600
DLIFEESLGQ GTFTKIFKGI RKEVGDYGQL HQTEVLLKVL DKVHRNYSES FFEAASMMSQ
610 620 630 640 650 660
LSYKHLVLNY GVCVCGEENI LVQEYVKFGS LDTYLKKNKN VINILWKLEV AKQLALAMHF
670 680 690 700 710 720
LEDKGLVHGN VCAKNILLIR EEDRKSGNLP FIKLSDPGIS ITVLPRDILL ERIPWVPPEC
730 740 750 760 770 780
IENPRQLSLA TDKWSFGTTL WEICSGGDKP LSALDSSRKL QFYEDRHQLP APNWTELANL
790 800 810 820 830 840
INNCMDYEPD FRPSFRAIIR DLNSLFTPDY ELLTENDMLP NIRTGALGFS GAFEDRDPTQ
850 860 870 880 890 900
FEERHLKFLQ QLGKGNFGSV EMCRYDPLQD NTGEVVAVKK LQHSTEEHLR DFEREIEILK
910 920 930 940 950 960
SLQHDNIVKY KGVCYSAGRR NLRLIMEYLP YGSLRDYLQK HKERLDHKKL LLYASQICKG
970 980 990 1000 1010 1020
MEYLGTKRYV HRDLATRNIL VENENRVKIG DFGLTKVLPQ DKEYYKVKEP GESPIFWYAP
1030 1040 1050 1060 1070 1080
ESLTESKFSV ASDVWSFGVV LYELFTYIEK SKSPPAEFMR MIGNDKQGQM IVFHLIELLK
1090 1100 1110 1120
NNGRLPRPDG CPDEIYAIMK ECWNNNVAQR PTFRDLAQRV DQIRDNMGG