SLC9A1(溶质载体家族9成员1,Solute Carrier Family 9 Member 1)属于SLC9基因家族,该家族编码钠氢交换蛋白(NHEs,Na+/H+ exchangers),主要负责调节细胞内pH值和钠离子浓度。SLC9A1编码的NHE1蛋白是一种跨膜蛋白,广泛分布于几乎所有哺乳动物细胞中,尤其在质膜上活跃,通过将细胞内氢离子(H+)排出并摄入钠离子(Na+)来维持细胞内的酸碱平衡和体积稳态。NHE1的生物学功能包括调节细胞增殖、迁移、凋亡以及参与心脏、神经和肾脏的生理过程。其作用位点主要在细胞膜,但也参与细胞骨架重组和信号转导。SLC9A1突变可能导致蛋白功能丧失或异常,引发遗传性离子通道病,如家族性混合型酸中毒(原英文:familial mixed acid-base disorder)或某些癌症的进展,因为NHE1的异常活动会促进肿瘤微环境的酸化,加速癌细胞侵袭。该基因与多种疾病相关,包括高血压、心肌肥厚、癫痫和神经退行性疾病(如阿尔茨海默病)。SLC9A1过表达常见于癌症,会增强细胞增殖和转移能力,同时抑制其表达可能导致细胞内酸中毒(原英文:intracellular acidosis),影响正常细胞代谢甚至引发凋亡。SLC9基因家族的共性是通过钠氢交换机制维持离子稳态,成员间在组织分布和功能调控上存在差异,例如SLC9A2主要在肠道表达而SLC9A3分布于肾脏。SLC9A1的活性受激素(如胰岛素)和机械应力(如心脏负荷)调控,其表达水平变化可能间接影响其他依赖pH或钠离子浓度的基因或通路,如钙信号(原英文:calcium signaling)或MAPK通路(原英文:mitogen-activated protein kinase pathway)。
This gene encodes a Na+/H+ antiporter that is a member of the solute carrier family 9. The encoded protein is a plasma membrane transporter that is expressed in the kidney and intestine. This protein plays a central role in regulating pH homeostasis, cell migration and cell volume. This protein may also be involved in tumor growth. [provided by RefSeq, Sep 2011]
这个基因编码中的Na + / H +反向转运蛋白,它是溶质载体家族9的部件的编码的蛋白质是在肾脏和肠内表达的质膜转运体。这种蛋白质在调节pH值平衡,细胞迁移和细胞体积的中心作用。这种蛋白可能也参与肿瘤的生长。 [由RefSeq的,2011年9月提供]
SLC9A1基因(以及对应的蛋白质)的细胞分布位置:
SLC9A1基因的本体(GO)信息:
名称 |
---|
4024 cAMP signaling pathway [PATH:hsa04024] |
4810 Regulation of actin cytoskeleton [PATH:hsa04810] |
4919 Thyroid hormone signaling pathway [PATH:hsa04919] |
4260 Cardiac muscle contraction [PATH:hsa04260] |
4261 Adrenergic signaling in cardiomyocytes [PATH:hsa04261] |
4970 Salivary secretion [PATH:hsa04970] |
4971 Gastric acid secretion [PATH:hsa04971] |
4972 Pancreatic secretion [PATH:hsa04972] |
4976 Bile secretion [PATH:hsa04976] |
5205 Proteoglycans in cancer [PATH:hsa05205] |
名称 |
---|
Glycosaminoglycan metabolism |
Hyaluronan metabolism |
Hyaluronan uptake and degradation |
Metabolism of carbohydrates |
SLC-mediated transmembrane transport |
Sodium/Proton exchangers |
Transmembrane transport of small molecules |
Transport of inorganic cations/anions and amino acids/oligopeptides |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Reperfusion Injury | 0.20272435 | 3 | 0 | CTD_human_LHGDN_RGD |
Shock, Hemorrhagic | 0.2 | 2 | 0 | CTD_human_RGD |
Heart failure | 0.123267234 | 3 | 0 | BeFree_CTD_human_LHGDN |
Edema | 0.12 | 1 | 0 | CTD_human |
Hypertrophic Cardiomyopathy | 0.12 | 1 | 0 | CTD_human |
Pain | 0.12 | 1 | 0 | CTD_human |
Diabetes Mellitus, Experimental | 0.12 | 1 | 0 | CTD_human |
Barrett Esophagus | 0.12 | 1 | 0 | CTD_human |
Left Ventricular Hypertrophy | 0.080271442 | 2 | 0 | BeFree_RGD |
Diabetes Mellitus, Non-Insulin-Dependent | 0.080271442 | 2 | 0 | BeFree_RGD |
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