JAK1(Janus激酶1)属于JAK激酶家族,该家族包括JAK1、JAK2、JAK3和TYK2,是一类非受体型酪氨酸激酶,在细胞因子信号转导中起核心作用。JAK家族成员的共性是它们通过JAK-STAT信号通路传递细胞外信号,调控免疫反应、造血功能、炎症和细胞生长等生理过程。JAK1主要与多种细胞因子受体(如干扰素受体、白介素受体)结合,当细胞因子与受体结合后,JAK1被激活并磷酸化STAT蛋白,促使STAT二聚化并进入细胞核内调节靶基因表达。JAK1在免疫系统中尤为重要,参与干扰素信号传导,对抗病毒感染和调节炎症反应至关重要。JAK1突变可能导致功能异常,例如功能获得性突变与某些白血病和自身免疫疾病相关,而功能丧失性突变可能导致免疫缺陷。JAK1的过度激活与类风湿性关节炎、炎症性肠病等自身免疫疾病有关,因其促进炎症因子产生;而JAK1表达降低可能削弱免疫应答,增加感染风险。JAK抑制剂(如tofacitinib)通过靶向JAK1等激酶治疗自身免疫病,但可能因抑制过度而引发感染风险。此外,JAK1与其他JAK家族成员(如JAK2)协作或竞争,共同调节信号通路的平衡。例如,JAK1与JAK3共同参与γ链细胞因子信号传导,而JAK1缺失可能影响依赖该通路的T细胞发育。研究JAK1有助于理解免疫调控机制并开发相关疾病的靶向疗法。
Janus激酶1(JAK1),是一类新的特征在于第二磷酸相关的域紧接N末端到PTK域的存在下蛋白质 - 酪氨酸激酶(PTK)的成员。第二磷酸域带有蛋白激酶的所有特征,但它的结构从该PTK和苏氨酸/丝氨酸激酶家族成员的显著不同。 JAK1是一个大的,广泛表达的膜相关磷。 JAK1参与了干扰素α/β和-gamma信号转导通路。在α-干扰素途径JAK1和TYK2活动之间的相互依存,和JAK1和JAK2中的干扰素-γ通路之间,可能反映了在干扰素受体复合物的正确组装这些激酶的一个要求。这些激酶的夫妇的细胞因子配体结合到各种已知的信号蛋白的酪氨酸磷酸化和转录因子的独特家族的称为信号转导和转录激活剂或统计资料。 [由RefSeq的,2008年7月提供]
JAK1基因(以及对应的蛋白质)的细胞分布位置:
JAK1基因的本体(GO)信息:
| 名称 |
|---|
| 4630 Jak-STAT signaling pathway [PATH:hsa04630] |
| 4151 PI3K-Akt signaling pathway [PATH:hsa04151] |
| 4550 Signaling pathways regulating pluripotency of stem cells [PATH:hsa04550] |
| 4380 Osteoclast differentiation [PATH:hsa04380] |
| 5200 Pathways in cancer [PATH:hsa05200] |
| 5203 Viral carcinogenesis [PATH:hsa05203] |
| 5212 Pancreatic cancer [PATH:hsa05212] |
| 5152 Tuberculosis [PATH:hsa05152] |
| 5166 HTLV-I infection [PATH:hsa05166] |
| 5162 Measles [PATH:hsa05162] |
| 5164 Influenza A [PATH:hsa05164] |
| 5161 Hepatitis B [PATH:hsa05161] |
| 5160 Hepatitis C [PATH:hsa05160] |
| 5168 Herpes simplex infection [PATH:hsa05168] |
| 5169 Epstein-Barr virus infection [PATH:hsa05169] |
| 5145 Toxoplasmosis [PATH:hsa05145] |
| 5140 Leishmaniasis [PATH:hsa05140] |
| 名称 |
|---|
| Activated TLR4 signalling |
| Antiviral mechanism by IFN-stimulated genes |
| ARMS-mediated activation |
| Axon guidance |
| Cytokine Signaling in Immune system |
| DAP12 interactions |
| DAP12 signaling |
| Developmental Biology |
| Downstream signal transduction |
| Downstream signaling of activated FGFR1 |
| Downstream signaling of activated FGFR2 |
| Downstream signaling of activated FGFR3 |
| Downstream signaling of activated FGFR4 |
| ERK activation |
| ERK1 activation |
| ERK2 activation |
| Fc epsilon receptor (FCERI) signaling |
| FCERI mediated MAPK activation |
| FRS-mediated FGFR1 signaling |
| FRS-mediated FGFR2 signaling |
| FRS-mediated FGFR3 signaling |
| Frs2-mediated activation |
| FRS2-mediated FGFR4 signaling |
| G beta:gamma signalling through PI3Kgamma |
| G-protein beta:gamma signalling |
| Gastrin-CREB signalling pathway via PKC and MAPK |
| GPCR downstream signaling |
| GPVI-mediated activation cascade |
| GRB2 events in EGFR signaling |
| GRB2 events in ERBB2 signaling |
| Hemostasis |
| IGF1R signaling cascade |
| Immune System |
| Innate Immune System |
| Insulin receptor signalling cascade |
| Interferon alpha/beta signaling |
| Interferon gamma signaling |
| Interferon Signaling |
| Interleukin receptor SHC signaling |
| Interleukin-2 signaling |
| Interleukin-3, 5 and GM-CSF signaling |
| Interleukin-6 signaling |
| Interleukin-7 signaling |
| IRS-mediated signalling |
| IRS-related events |
| IRS-related events triggered by IGF1R |
| ISG15 antiviral mechanism |
| MAP kinase activation in TLR cascade |
| MyD88 cascade initiated on plasma membrane |
| MyD88 dependent cascade initiated on endosome |
| MyD88-independent TLR3/TLR4 cascade |
| MyD88:Mal cascade initiated on plasma membrane |
| NCAM signaling for neurite out-growth |
| NGF signalling via TRKA from the plasma membrane |
| Platelet activation, signaling and aggregation |
| Prolonged ERK activation events |
| RAF/MAP kinase cascade |
| Regulation of IFNA signaling |
| Regulation of IFNG signaling |
| SHC-mediated signalling |
| SHC-related events |
| SHC-related events triggered by IGF1R |
| SHC1 events in EGFR signaling |
| SHC1 events in ERBB2 signaling |
| SHC1 events in ERBB4 signaling |
| Signal Transduction |
| Signaling by EGFR |
| Signaling by ERBB2 |
| Signaling by ERBB4 |
| Signaling by FGFR |
| Signaling by FGFR1 |
| Signaling by FGFR2 |
| Signaling by FGFR3 |
| Signaling by FGFR4 |
| Signaling by GPCR |
| Signaling by Insulin receptor |
| Signaling by Interleukins |
| Signaling by Leptin |
| Signaling by PDGF |
| Signaling by SCF-KIT |
| Signaling by Type 1 Insulin-like Growth Factor 1 Receptor (IGF1R) |
| Signaling by VEGF |
| Signalling by NGF |
| Signalling to ERKs |
| Signalling to p38 via RIT and RIN |
| Signalling to RAS |
| SOS-mediated signalling |
| Toll Like Receptor 10 (TLR10) Cascade |
| Toll Like Receptor 2 (TLR2) Cascade |
| Toll Like Receptor 3 (TLR3) Cascade |
| Toll Like Receptor 4 (TLR4) Cascade |
| Toll Like Receptor 5 (TLR5) Cascade |
| Toll Like Receptor 7/8 (TLR7/8) Cascade |
| Toll Like Receptor 9 (TLR9) Cascade |
| Toll Like Receptor TLR1:TLR2 Cascade |
| Toll Like Receptor TLR6:TLR2 Cascade |
| Toll-Like Receptors Cascades |
| TRAF6 mediated induction of NFkB and MAP kinases upon TLR7/8 or 9 activation |
| TRAF6 Mediated Induction of proinflammatory cytokines |
| TRIF-mediated TLR3/TLR4 signaling |
| VEGFA-VEGFR2 Pathway |
| VEGFR2 mediated cell proliferation |
| 疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
| Lupus Erythematosus, Systemic | 0.080271442 | 1 | 0 | BeFree_MGD |
| Primary Myelofibrosis | 0.007991366 | 14 | 0 | BeFree_GAD |
| Precursor Cell Lymphoblastic Leukemia Lymphoma | 0.006720033 | 6 | 0 | BeFree_GAD_LHGDN |
| Polycythemia Vera | 0.005276948 | 4 | 2 | BeFree_GAD |
| Hepatitis B, Chronic | 0.004734064 | 2 | 0 | GAD |
| Hepatitis C, Chronic | 0.004734064 | 2 | 0 | GAD |
| Autoimmune Diseases | 0.003538676 | 3 | 0 | BeFree_LHGDN |
| Liver carcinoma | 0.003452799 | 4 | 0 | BeFree_GAD |
| Precursor T-Cell Lymphoblastic Leukemia-Lymphoma | 0.003452799 | 5 | 0 | BeFree_GAD |
| Hepatitis C | 0.002995792 | 2 | 0 | BeFree_LHGDN |
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