RORA(Retinoic Acid Receptor-Related Orphan Receptor Alpha)属于核受体超家族中的ROR亚家族,该家族还包括RORB和RORC,共同特点是能结合DNA特定序列(ROR反应元件)并调控靶基因转录,参与昼夜节律、免疫调节和代谢等过程。RORA编码的蛋白质作为配体依赖性转录因子,其配体包括胆固醇衍生物(如7-脱氢胆固醇),通过激活或抑制下游基因(如BMAL1、NF-κB)影响生物钟、炎症反应和脂质代谢。主要作用位点包括大脑(特别是小脑和视交叉上核)、肝脏、脂肪组织和免疫细胞。突变可能导致功能丧失或异常激活,与多种疾病相关:如小脑共济失调(因神经元发育异常)、自闭症谱系障碍(突触功能紊乱)、肥胖(脂代谢失调)和炎症性疾病(如哮喘、类风湿关节炎,因NF-κB通路失调)。过表达时可能增强抗炎作用但抑制Th17细胞分化,导致免疫失衡;低表达则破坏昼夜节律同步化,加剧代谢综合征和神经退行性病变。RORA还通过调控Bmal1基因影响生物钟,其表达下降会连锁导致周期基因(如Per、Cry)紊乱。该基因家族共性为含有保守的DNA结合域和配体结合域,通过胆固醇类分子调控,在发育和稳态维持中发挥核心作用。目前中文常将"orphan receptor"直译为孤儿受体,指尚未明确内源性配体的核受体,但RORA实际已发现部分胆固醇衍生物作为配体。
The protein encoded by this gene is a member of the NR1 subfamily of nuclear hormone receptors. It can bind as a monomer or as a homodimer to hormone response elements upstream of several genes to enhance the expression of those genes. The encoded protein has been shown to interact with NM23-2, a nucleoside diphosphate kinase involved in organogenesis and differentiation, as well as with NM23-1, the product of a tumor metastasis suppressor candidate gene. Also, it has been shown to aid in the transcriptional regulation of some genes involved in circadian rhythm. Four transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Feb 2014]
由该基因编码的蛋白质是核激素受体的NR1亚科的成员。它可以结合作为单体或作为同二聚体激素上游的几个基因的应答元件以增强这些基因的表达。所编码的蛋白质已被证明与NM23-2,参与器官发生和分化,以及与NM23-1,肿瘤转移抑制候选基因的产物的核苷二磷酸激酶相互作用。另外,已经表明在参与昼夜节律某些基因的转录调节来帮助。编码不同亚型四个抄本变形已经为这个基因描述。 [由RefSeq的,2014年2月提供]
RORA基因(以及对应的蛋白质)的细胞分布位置:
RORA基因的本体(GO)信息:
名称 |
---|
4710 Circadian rhythm [PATH:hsa04710] |
5321 Inflammatiory bowel disease (IBD) [PATH:hsa05321] |
名称 |
---|
BMAL1:CLOCK,NPAS2 activates circadian gene expression |
Circadian Clock |
Fatty acid, triacylglycerol, and ketone body metabolism |
Gene Expression |
Generic Transcription Pathway |
Metabolism of lipids and lipoproteins |
Nuclear Receptor transcription pathway |
PPARA activates gene expression |
Regulation of lipid metabolism by Peroxisome proliferator-activated receptor alpha (PPARalpha) |
RORA activates gene expression |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Mental Depression | 0.125276948 | 2 | 1 | BeFree_GAD_GWASCAT |
Asthma | 0.120271442 | 2 | 1 | BeFree_GWASCAT |
Autistic Disorder | 0.12 | 2 | 0 | CTD_human |
Stomach Neoplasms | 0.12 | 1 | 0 | CTD_human |
Peripheral Neuropathy | 0.12 | 1 | 0 | CTD_human |
Bipolar Disorder | 0.005819831 | 6 | 9 | BeFree_GAD |
Anoxia | 0.0054487 | 2 | 0 | LHGDN |
Robinow Syndrome | 0.004071628 | 15 | 0 | BeFree |
BRACHYDACTYLY, TYPE B1 | 0.003800186 | 14 | 0 | BeFree |
Chronic Lymphocytic Leukemia | 0.003528744 | 13 | 0 | BeFree |
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