ERBB4(也称为HER4)是表皮生长因子受体(EGFR)家族的成员之一,属于受体酪氨酸激酶(RTK)家族。ERBB家族包括ERBB1(EGFR/HER1)、ERBB2(HER2/neu)、ERBB3(HER3)和ERBB4(HER4),这些基因编码的蛋白质在细胞信号传导中起关键作用,调控细胞增殖、分化、迁移和存活。ERBB4通过结合配体(如神经调节蛋白NRG1、NRG2、NRG3和NRG4)激活下游信号通路,包括PI3K-AKT和MAPK通路,影响多种生物学过程。ERBB4在胚胎发育、心脏功能、神经系统发育和乳腺组织中发挥重要作用,尤其在突触形成和神经元存活中至关重要。ERBB4的突变或表达异常与多种疾病相关,包括癌症(如乳腺癌、黑色素瘤和肺癌)、精神分裂症和自闭症谱系障碍。某些突变可能导致受体功能丧失或异常激活,影响细胞信号传导,进而促进肿瘤发生或神经发育异常。ERBB4过表达可能增强细胞增殖和存活信号,促进肿瘤进展,而降低表达可能导致发育缺陷或神经功能障碍。在乳腺癌中,ERBB4的表达水平与预后相关,高表达可能预示较好的预后,而低表达可能与侵袭性表型相关。此外,ERBB4与其他ERBB家族成员(如ERBB2)形成异源二聚体,调节信号传导的强度和特异性。ERBB4的剪接变异体(如JM-a和JM-b)具有不同的生物学功能,影响受体的活化和内化。ERBB4基因的调控异常可能影响其他基因的表达或功能,如细胞周期调控基因或凋亡相关基因。总之,ERBB4是一个多功能的受体酪氨酸激酶,在正常生理和疾病中发挥重要作用,其表达水平和突变状态对机体功能和疾病发展具有深远影响。
This gene is a member of the Tyr protein kinase family and the epidermal growth factor receptor subfamily. It encodes a single-pass type I membrane protein with multiple cysteine rich domains, a transmembrane domain, a tyrosine kinase domain, a phosphotidylinositol-3 kinase binding site and a PDZ domain binding motif. The protein binds to and is activated by neuregulins and other factors and induces a variety of cellular responses including mitogenesis and differentiation. Multiple proteolytic events allow for the release of a cytoplasmic fragment and an extracellular fragment. Mutations in this gene have been associated with cancer. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]
此基因是酪氨酸蛋白激酶家族的成员,并在表皮生长因子受体亚家族。它编码我膜蛋白具有多个富含半胱氨酸的结构域,跨膜结构域,酪氨酸激酶结构域,磷脂酰肌醇-3-激酶结合位点和PDZ结构域结合基序的单通型。蛋白质结合并用神经调节蛋白和其它因素激活并诱导多种包括有丝分裂和分化的细胞应答。多个蛋白水解事件允许细胞质片段的释放和细胞外片段。在这种基因突变已与癌症相关。可变剪接变体,其编码不同蛋白同种型已被描述;然而,并非所有的变体已被充分表征。 [由RefSeq的,2008年7月提供]
ERBB4基因(以及对应的蛋白质)的细胞分布位置:
ERBB4基因的本体(GO)信息:
名称 |
---|
4012 ErbB signaling pathway [PATH:hsa04012] |
4020 Calcium signaling pathway [PATH:hsa04020] |
4144 Endocytosis [PATH:hsa04144] |
5205 Proteoglycans in cancer [PATH:hsa05205] |
名称 |
---|
Adaptive Immune System |
Constitutive Signaling by Aberrant PI3K in Cancer |
DAP12 interactions |
DAP12 signaling |
Disease |
Diseases of signal transduction |
Downregulation of ERBB4 signaling |
Downstream signal transduction |
Downstream signaling events of B Cell Receptor (BCR) |
Downstream signaling of activated FGFR1 |
Downstream signaling of activated FGFR2 |
Downstream signaling of activated FGFR3 |
Downstream signaling of activated FGFR4 |
Fc epsilon receptor (FCERI) signaling |
GAB1 signalosome |
GRB2 events in ERBB2 signaling |
Immune System |
Innate Immune System |
NGF signalling via TRKA from the plasma membrane |
Nuclear signaling by ERBB4 |
PI-3K cascade:FGFR1 |
PI-3K cascade:FGFR2 |
PI-3K cascade:FGFR3 |
PI-3K cascade:FGFR4 |
PI3K events in ERBB2 signaling |
PI3K events in ERBB4 signaling |
PI3K/AKT activation |
PI3K/AKT Signaling in Cancer |
PIP3 activates AKT signaling |
Role of LAT2/NTAL/LAB on calcium mobilization |
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 PDGF |
Signaling by SCF-KIT |
Signaling by the B Cell Receptor (BCR) |
Signalling by NGF |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Amyotrophic Lateral Sclerosis | 0.240271442 | 2 | 1 | BeFree_GWASCAT_ORPHANET |
AMYOTROPHIC LATERAL SCLEROSIS 19 | 0.24 | 1 | 2 | CLINVAR_UNIPROT |
Malignant neoplasm of breast | 0.132214884 | 45 | 6 | BeFree_GWASCAT |
melanoma | 0.125352893 | 11 | 0 | BeFree_CTD_human_GAD |
Diabetic Nephropathy | 0.122909916 | 2 | 2 | BeFree_GAD_GWASCAT |
Skin Neoplasms | 0.122367032 | 1 | 0 | CTD_human_GAD |
Asthma | 0.12 | 1 | 1 | GWASCAT |
gallbladder neoplasm | 0.12 | 1 | 0 | CTD_human |
Neointima | 0.08 | 1 | 0 | RGD |
Cerebrovascular accident | 0.08 | 1 | 0 | RGD |
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