BMX(骨髓酪氨酸激酶X,Bone Marrow tyrosine kinase on chromosome X)属于TEC(Tyrosine kinase expressed in hepatocellular carcinoma)激酶家族,该家族成员(如BTK、ITK、TEC等)均为非受体型酪氨酸激酶,共同特点是参与细胞信号传导,尤其在免疫细胞(如B细胞、T细胞)和造血系统中调控增殖、分化及存活。BMX特异性表达于骨髓、血管内皮细胞和某些上皮细胞,其编码的蛋白质通过激活PI3K/AKT、STAT3等信号通路促进细胞生存、血管生成(新血管形成)和炎症反应。BMX的突变或异常表达与多种疾病相关:功能获得性突变可能增强其激酶活性,导致过度细胞增殖,与前列腺癌、乳腺癌等恶性肿瘤的进展和耐药性有关;而功能缺失突变可能影响血管稳态,增加血管渗漏风险。BMX过表达会持续激活下游促生存信号,加剧肿瘤侵袭性和化疗抵抗,同时可能抑制免疫微环境;反之,表达降低会削弱血管内皮修复能力,导致组织缺血或伤口愈合延迟。在炎症性疾病中,BMX通过调控NF-κB通路加重炎症反应,其抑制剂被探索用于类风湿性关节炎治疗。该基因的家族成员均依赖PH(pleckstrin homology)结构域与细胞膜磷脂结合,并通过SH3(Src homology 3)结构域与其他蛋白质相互作用,形成复杂的信号网络。研究提示BMX与VEGF(血管内皮生长因子)通路协同促进病理性血管增生,因此在抗肿瘤血管治疗中成为潜在靶点。
This gene encodes a non-receptor tyrosine kinase belonging to the Tec kinase family. The protein contains a PH-like domain, which mediates membrane targeting by binding to phosphatidylinositol 3,4,5-triphosphate (PIP3), and a SH2 domain that binds to tyrosine-phosphorylated proteins and functions in signal transduction. The protein is implicated in several signal transduction pathways including the Stat pathway, and regulates differentiation and tumorigenicity of several types of cancer cells. Multiple alternatively spliced variants, encoding the same protein, have been identified.[provided by RefSeq, Sep 2009]
该基因编码属于Tec的激酶家族的非受体酪氨酸激酶。该蛋白含有一个PH样结构域,其介导膜由(PIP3)结合至磷脂酰肌醇3,4,5-三磷酸定位,并结合在信号转导的酪氨酸磷酸化的蛋白质和功能的SH2结构域。该蛋白质牵连几种信号传导通路,包括STAT通路,并调节几种类型的癌细胞的分化和致瘤性。多个可变剪接变体,编码相同的蛋白质,也已确定。[通过的RefSeq,2009年09月提供]
BMX基因(以及对应的蛋白质)的细胞分布位置:
BMX基因的本体(GO)信息:
名称 |
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Apoptosis |
Apoptotic cleavage of cellular proteins |
Apoptotic execution phase |
Programmed Cell Death |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Prostatic Neoplasms | 0.0054487 | 2 | 0 | LHGDN |
Rheumatoid Arthritis | 0.00272435 | 1 | 0 | LHGDN |
Mammary Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
HIV Infections | 0.002367032 | 1 | 0 | GAD |
Lymphoproliferative Disorders | 0.002367032 | 1 | 0 | GAD |
MYELODYSPLASTIC SYNDROME | 0.002367032 | 1 | 0 | GAD |
Malignant neoplasm of lung | 0.000542884 | 2 | 0 | BeFree |
Carcinoma of lung | 0.000542884 | 2 | 0 | BeFree |
Small cell carcinoma of lung | 0.000542884 | 2 | 0 | BeFree |
Prostatic Intraepithelial Neoplasias | 0.000271442 | 1 | 0 | BeFree |
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