TCIRG1(T细胞免疫调节因子1,T-cell immune regulator 1)是一种重要的免疫相关基因,属于V-ATPase(液泡型ATP酶)基因家族,该家族成员主要参与调控细胞内酸性环境的形成。TCIRG1编码的蛋白质是V-ATPase复合体的关键亚基,负责在溶酶体和破骨细胞中维持酸性环境,这对骨吸收、抗原呈递和细胞内降解过程至关重要。TCIRG1主要在破骨细胞(负责骨吸收的细胞)和免疫细胞中高表达,其功能异常会导致溶酶体酸化障碍,影响破骨细胞的骨吸收能力。TCIRG1突变与人类常染色体隐性遗传病——恶性婴儿型骨硬化症(malignant infantile osteopetrosis)密切相关,患者表现为骨密度异常增高、骨髓腔狭窄及造血功能障碍。若TCIRG1表达降低或功能缺失,会导致破骨细胞无法正常酸化骨基质,进而抑制骨吸收,引发骨硬化;而过表达可能加剧骨吸收,但与疾病关联尚不明确。该基因家族(V-ATPase)的共性是通过水解ATP提供能量,将质子(H+)跨膜转运以调节细胞器或细胞外环境的pH值,影响蛋白质降解、膜运输和信号传导等过程。TCIRG1的功能研究为骨代谢疾病和免疫缺陷提供了潜在治疗靶点。
Through alternate splicing, this gene encodes two proteins with similarity to subunits of the vacuolar ATPase (V-ATPase) but the encoded proteins seem to have different functions. V-ATPase is a multisubunit enzyme that mediates acidification of eukaryotic intracellular organelles. V-ATPase dependent organelle acidification is necessary for such intracellular processes as protein sorting, zymogen activation, and receptor-mediated endocytosis. V-ATPase is comprised of a cytosolic V1 domain and a transmembrane V0 domain. Mutations in this gene are associated with infantile malignant osteopetrosis. [provided by RefSeq, Jul 2008]
通过选择性剪接,该基因编码两种蛋白质具有相似的液泡ATP酶(V-ATP酶),但编码的蛋白质的亚单位似乎有不同的功能。 V-ATP酶介导的真核细胞内细胞器的酸化多亚基酶。 V-ATP酶依赖性细胞器酸化是必要的,例如细胞内过程如蛋白质排序,酶原活化,和受体介导的内吞作用。 V-ATP酶是由一个胞质V1域和跨膜V0域的。在这种基因突变与婴儿恶性骨硬化症相关联。 [由RefSeq的,2008年7月提供]
TCIRG1基因(以及对应的蛋白质)的细胞分布位置:
TCIRG1基因的本体(GO)信息:
名称 |
---|
190 Oxidative phosphorylation [PATH:hsa00190] |
4145 Phagosome [PATH:hsa04145] |
4142 Lysosome [PATH:hsa04142] |
4966 Collecting duct acid secretion [PATH:hsa04966] |
4721 Synaptic vesicle cycle [PATH:hsa04721] |
5323 Rheumatoid arthritis [PATH:hsa05323] |
5110 Vibrio cholerae infection [PATH:hsa05110] |
5120 Epithelial cell signaling in Helicobacter pylori infection [PATH:hsa05120] |
5152 Tuberculosis [PATH:hsa05152] |
名称 |
---|
Disease |
Infectious disease |
Insulin receptor recycling |
Ion channel transport |
Iron uptake and transport |
Latent infection of Homo sapiens with Mycobacterium tuberculosis |
Phagosomal maturation (early endosomal stage) |
Signaling by Insulin receptor |
Transferrin endocytosis and recycling |
Transmembrane transport of small molecules |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Osteopetrosis, Autosomal Recessive 1 | 0.44 | 2 | 4 | CLINVAR_CTD_human_MGD_UNIPROT |
Infantile malignant osteopetrosis | 0.121628651 | 6 | 0 | BeFree_ORPHANET |
Congenital neutropenia | 0.120271442 | 1 | 1 | BeFree_CLINVAR |
Congenital clubfoot | 0.08 | 0 | 0 | MGD |
Osteopetrosis | 0.011344477 | 15 | 0 | BeFree_GAD_LHGDN |
Osteoporosis | 0.004734064 | 2 | 0 | GAD |
Infection by Cryptococcus neoformans | 0.000271442 | 1 | 0 | BeFree |
Diabetes Mellitus, Non-Insulin-Dependent | 0.000271442 | 1 | 0 | BeFree |
Encephalitis | 0.000271442 | 1 | 0 | BeFree |
Idiopathic pulmonary hypertension | 0.000271442 | 1 | 0 | BeFree |
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