INPPL1基因编码的蛋白称为肌醇多磷酸5-磷酸酶2(SHIP2),属于肌醇磷酸酶家族。该蛋白的主要功能是通过水解磷脂酰肌醇-3,4,5-三磷酸(PIP3)的5位磷酸基团,生成磷脂酰肌醇-3,4-二磷酸(PI(3,4)P2),从而负调控PI3K/AKT信号通路。这一通路在细胞生长、增殖、代谢和存活中起关键作用。INPPL1主要在胰岛素敏感组织如脂肪、肌肉和肝脏中表达,参与胰岛素信号传导的负调控,影响葡萄糖摄取和代谢。INPPL1基因突变可能导致其功能异常,与2型糖尿病、肥胖和胰岛素抵抗等代谢性疾病相关。某些突变会降低酶活性,减弱对PI3K/AKT通路的抑制,导致胰岛素信号过度激活,可能引发低血糖或代谢紊乱。INPPL1过表达会增强对PI3K/AKT通路的抑制,可能导致胰岛素抵抗和血糖升高;而降低表达则可能增强胰岛素敏感性,但也可能因信号过度激活而引发其他代谢异常。INPPL1属于肌醇多磷酸5-磷酸酶家族,该家族成员均含有5-磷酸酶结构域,能够水解肌醇磷脂的5位磷酸,共同参与调控细胞信号转导和代谢平衡。研究表明,INPPL1还与癌症、神经退行性疾病和免疫调节有关,但其具体机制仍需进一步研究。
The protein encoded by this gene is an SH2-containing 5'-inositol phosphatase that is involved in the regulation of insulin function. The encoded protein also plays a role in the regulation of epidermal growth factor receptor turnover and actin remodelling. Additionally, this gene supports metastatic growth in breast cancer and is a valuable biomarker for breast cancer. [provided by RefSeq, Jan 2009]
由该基因编码的蛋白质是参与胰岛素功能的调节含SH2 -5‘-肌醇磷酸酶。所编码的蛋白质也起着表皮生长因子受体周转和肌动蛋白重塑的调节作用。此外,该基因支持在乳腺癌转移生长,是乳腺癌的有价值的生物标志物。 [由RefSeq的,2009年1月提供]
INPPL1基因(以及对应的蛋白质)的细胞分布位置:
INPPL1基因的本体(GO)信息:
名称 |
---|
562 Inositol phosphate metabolism [PATH:hsa00562] |
4070 Phosphatidylinositol signaling system [PATH:hsa04070] |
4662 B cell receptor signaling pathway [PATH:hsa04662] |
4666 Fc gamma R-mediated phagocytosis [PATH:hsa04666] |
4910 Insulin signaling pathway [PATH:hsa04910] |
名称 |
---|
Cytokine Signaling in Immune system |
Immune System |
Inositol phosphate metabolism |
Interleukin receptor SHC signaling |
Interleukin-2 signaling |
Interleukin-3, 5 and GM-CSF signaling |
Metabolism |
Metabolism of lipids and lipoproteins |
Phospholipid metabolism |
PI Metabolism |
Signaling by Interleukins |
Synthesis of IP3 and IP4 in the cytosol |
Synthesis of PIPs at the plasma membrane |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Opsismodysplasia | 0.361085767 | 4 | 9 | BeFree_CLINVAR_ORPHANET_UNIPROT |
Insulin Resistance | 0.08 | 2 | 0 | RGD |
Mammary Neoplasms | 0.0054487 | 2 | 0 | LHGDN |
Hypertensive disease | 0.003181358 | 3 | 0 | BeFree_GAD |
Acute Erythroblastic Leukemia | 0.00272435 | 1 | 0 | LHGDN |
Diabetes Mellitus, Non-Insulin-Dependent | 0.002171535 | 8 | 0 | BeFree |
Metabolic Syndrome X | 0.001357209 | 5 | 0 | BeFree |
Diabetes | 0.000814326 | 3 | 2 | BeFree |
Liver carcinoma | 0.000814326 | 3 | 0 | BeFree |
Obesity | 0.000814326 | 3 | 0 | BeFree |
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