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Phosphorylase kinase is a polymer of 16 subunits, four each of alpha, beta, gamma and delta. The alpha subunit includes the skeletal muscle and hepatic isoforms, and the hepatic isoform is encoded by this gene. The beta subunit is the same in both the muscle and hepatic isoforms, and encoded by one gene. The gamma subunit also includes the skeletal muscle and hepatic isoforms, which are encoded by two different genes. The delta subunit is a calmodulin and can be encoded by three different genes. The gamma subunits contain the active site of the enzyme, whereas the alpha and beta subunits have regulatory functions controlled by phosphorylation. The delta subunit mediates the dependence of the enzyme on calcium concentration. Mutations in this gene cause glycogen storage disease type 9A, also known as X-linked liver glycogenosis. Alternatively spliced transcript variants have been reported, but the full-length nature of these variants has not been determined.[provided by RefSeq, Feb 2010]
[中文简述(自动翻译):]  磷酸化酶激酶为16亚基,四α,β,γ和δ的各聚合物。 α亚基包括骨骼肌和肝脏同种型,和肝同种型由该基因编码。 β亚基是在肌肉和肝同种型都是相同的,并且由一个基因编码。伽马亚基还包括骨骼肌和肝脏同种型,它们由两个不同的基因编码。增量亚基是钙调蛋白,??并且可以通过三种不同的基因编码。伽马亚基含有酶的活性位点,而α和β亚基具有通过磷酸化来控制调节功能。增量亚基介导钙浓度酶的依赖。突变该基因引起型糖原贮积病9A,也称为X-连锁的肝脏糖原分解。可变剪接转录物变体已有报道,但这些变体的全长性质尚未确定。[通过的RefSeq,2010年2月提供]
PHKA2基因(以及对应的蛋白质)的细胞分布位置:
PHKA2基因的本体(GO)信息:
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
GLYCOGEN STORAGE DISEASE IXa1 | 0.24 | 7 | 0 | CTD_human_UNIPROT |
Glycogen Storage Disease | 0.127891677 | 10 | 0 | BeFree_CTD_human_LHGDN |
Glycogen Storage Disease Type VIII | 0.12 | 0 | 7 | CLINVAR |
Glycogen Storage Disease, Type IXA2 | 0.12 | 0 | 6 | CLINVAR |
Glycogen storage disease, type IX | 0.002714419 | 10 | 0 | BeFree |
Deficiency of phosphorylase kinase | 0.000814326 | 3 | 0 | BeFree |
Glycogen Storage Disease Type I | 0.000542884 | 2 | 0 | BeFree |
Spastic syndrome | 0.000271442 | 1 | 0 | BeFree |
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