ALDOA基因编码醛缩酶A(Aldolase A),是糖酵解途径中的关键酶之一,属于醛缩酶基因家族。该家族包括ALDOA、ALDOB和ALDOC三个主要成员,它们在不同组织中特异性表达,但均具有催化果糖-1,6-二磷酸(FBP)裂解为甘油醛-3-磷酸和二羟丙酮磷酸的功能,从而参与糖代谢和能量生成。ALDOA主要在骨骼肌和红细胞中高表达,其表达产物不仅参与糖酵解,还与肌动蛋白细胞骨架结合,可能在细胞运动、形态维持和信号转导中发挥作用。ALDOA的突变可能导致酶活性降低或丧失,引发罕见的遗传性疾病如醛缩酶A缺乏症(糖原贮积病XII型),患者表现为运动不耐受、溶血性贫血和肌病。此外,ALDOA的异常表达与多种疾病相关,例如在癌症中常出现过表达,促进肿瘤细胞的糖酵解(瓦氏效应),支持其快速增殖;而在神经退行性疾病中可能表达下调。ALDOA过表达会增强糖酵解通量,可能导致乳酸堆积和微环境酸化,同时可能通过非代谢功能影响细胞迁移和侵袭,促进肿瘤转移。反之,ALDOA表达降低会削弱糖酵解效率,导致ATP生成不足,尤其影响高能量需求的肌肉和红细胞功能,引发代谢障碍。该基因家族成员的共性包括:均含有保守的活性位点,能催化相同的反应,但组织分布和调控机制不同(如ALDOB主要在肝脏,ALDOC在神经系统)。研究ALDOA有助于理解代谢疾病、癌症的机制,并为靶向治疗提供潜在方向。
The protein encoded by this gene, Aldolase A (fructose-bisphosphate aldolase), is a glycolytic enzyme that catalyzes the reversible conversion of fructose-1,6-bisphosphate to glyceraldehyde 3-phosphate and dihydroxyacetone phosphate. Three aldolase isozymes (A, B, and C), encoded by three different genes, are differentially expressed during development. Aldolase A is found in the developing embryo and is produced in even greater amounts in adult muscle. Aldolase A expression is repressed in adult liver, kidney and intestine and similar to aldolase C levels in brain and other nervous tissue. Aldolase A deficiency has been associated with myopathy and hemolytic anemia. Alternative splicing and alternative promoter usage results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 3 and 10. [provided by RefSeq, Aug 2011]
由该基因编码的蛋白质,醛缩酶A(醛缩酶),是催化果糖-1,6-双磷酸,以甘油醛-3-磷酸和二羟基丙酮磷酸的可逆转换糖酵解酶。三醛缩酶同工酶(A,B和C)中,由三个不同的基因编码,在开发过程中差异表达。醛缩酶A在发育中的胚胎中发现,并且在成年肌肉甚至更大量的产生。醛缩酶A表达在成年肝,肾,肠和类似醛缩酶在脑和其他神经组织C水平压制。醛缩酶A缺乏症已与肌病和溶血性贫血有关。选择性剪接,并在多个转录变异体替代的启动子的使用的结果。相关假已经确定在[由RefSeq的,2011年8月提供]染色体3和10
ALDOA基因(以及对应的蛋白质)的细胞分布位置:
ALDOA基因的本体(GO)信息:
名称 |
---|
1200 Carbon metabolism [PATH:hsa01200] |
1230 Biosynthesis of amino acids [PATH:hsa01230] |
10 Glycolysis / Gluconeogenesis [PATH:hsa00010] |
30 Pentose phosphate pathway [PATH:hsa00030] |
51 Fructose and mannose metabolism [PATH:hsa00051] |
4066 HIF-1 signaling pathway [PATH:hsa04066] |
名称 |
---|
Gluconeogenesis |
Glucose metabolism |
Glycolysis |
Hemostasis |
Metabolism |
Metabolism of carbohydrates |
Platelet activation, signaling and aggregation |
Platelet degranulation |
Response to elevated platelet cytosolic Ca2+ |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Glycogen Storage Disease XII | 0.48 | 3 | 3 | CLINVAR_CTD_human_ORPHANET_UNIPROT |
Neoplasm Metastasis | 0.12 | 1 | 0 | CTD_human |
Neoplasm Invasiveness | 0.12 | 1 | 0 | CTD_human |
Myocardial Ischemia | 0.12 | 1 | 0 | CTD_human |
Adenocarcinoma of lung (disorder) | 0.12 | 1 | 0 | CTD_human |
Mammary Neoplasms | 0.12 | 1 | 0 | CTD_human |
Reperfusion Injury | 0.08 | 1 | 0 | RGD |
Endotoxemia | 0.08 | 1 | 0 | RGD |
Anemia | 0.002367032 | 1 | 0 | GAD |
Autistic Disorder | 0.002367032 | 1 | 0 | GAD |
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