P2RY2(嘌呤能受体P2Y2)是一种G蛋白偶联受体,属于P2Y受体家族,该家族共有8个成员(P2Y1、P2Y2、P2Y4、P2Y6、P2Y11、P2Y12、P2Y13、P2Y14),主要识别细胞外核苷酸如ATP和UTP作为配体,参与调控多种生理过程,包括炎症、凝血、神经传递和离子通道调节。P2RY2广泛表达于上皮细胞、免疫细胞、内皮细胞和成骨细胞等,其激活后通过Gq蛋白信号通路促进磷脂酶C(PLC)活化,产生肌醇三磷酸(IP3)和二酰基甘油(DAG),进而动员细胞内钙离子和激活蛋白激酶C(PKC)。P2RY2在维持上皮屏障功能、黏液分泌和伤口愈合中起关键作用,例如在呼吸道和肠道中通过刺激氯离子和水分分泌保持黏膜湿润。突变或功能异常可能导致囊性纤维化样症状(如黏液清除障碍)或炎症性疾病(如慢性阻塞性肺病)。过表达P2RY2可能加剧炎症反应或促进肿瘤进展(如胶质瘤和乳腺癌),因其激活可促进细胞增殖和迁移;而表达降低则可能损害组织修复能力或导致上皮功能缺陷。P2RY2还与骨质疏松相关,因其在成骨细胞中调控骨形成。该受体是药物开发的潜在靶点,针对其激动剂或拮抗剂的研究用于治疗干眼症、慢性咳嗽和纤维化疾病。P2Y受体家族的共性是通过核苷酸信号参与细胞间通讯,并在应激或损伤时被大量释放的ATP激活,协调组织稳态和病理反应。
The product of this gene belongs to the family of P2 receptors, which is activated by extracellular nucleotides and subdivided into P2X ligand-gated ion channels and P2Y G-protein coupled receptors. This family has several receptor subtypes with different pharmacological selectivity, which overlaps in some cases, for various adenosine and uridine nucleotides. This receptor, found on many cell types, is activated by ATP and UTP and is reported to be overexpressed on some cancer cell types. It is involved in many cellular functions, such as proliferation, apoptosis and inflammation. Three transcript variants encoding the same protein have been identified for this gene. [provided by RefSeq, Mar 2013]
该基因的产物属于家庭P2受体的,这是由外核苷酸激活并细分为P2X配体门控离子通道和P2Y G-蛋白偶联受体。该家族具有不同的药理学选择性,重叠在某些情况下,对各种腺苷和尿苷核苷酸几个受体亚型。这种受体,在许多细胞类型中发现,由ATP和UTP激活,并报告了某些肿瘤细胞类型中过表达。它参与许多细胞功能,例如细胞增殖,细胞凋亡和炎症。编码相同蛋白质三个转录变体已被确定为这个基因。 [由RefSeq的,2013年3月提供]
P2RY2基因(以及对应的蛋白质)的细胞分布位置:
P2RY2基因的本体(GO)信息:
名称 |
---|
4080 Neuroactive ligand-receptor interaction [PATH:hsa04080] |
4750 Inflammatory mediator regulation of TRP channels [PATH:hsa04750] |
名称 |
---|
Class A/1 (Rhodopsin-like receptors) |
G alpha (q) signalling events |
Gastrin-CREB signalling pathway via PKC and MAPK |
GPCR downstream signaling |
GPCR ligand binding |
Nucleotide-like (purinergic) receptors |
P2Y receptors |
Signaling by GPCR |
疾病名称 | 关系值 | NofPmids | NofSnps | 来源 |
Dehydration | 0.08 | 1 | 0 | RGD |
Erectile dysfunction | 0.08 | 1 | 0 | RGD |
Atherosclerosis | 0.003267234 | 3 | 0 | BeFree_LHGDN |
Cystic Fibrosis | 0.002909916 | 2 | 0 | BeFree_GAD |
Lung Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
Skin Neoplasms | 0.00272435 | 1 | 0 | LHGDN |
Alzheimer's Disease | 0.00272435 | 1 | 0 | LHGDN |
HIV Infections | 0.002638474 | 2 | 0 | BeFree_GAD |
Cerebral Infarction | 0.002638474 | 1 | 0 | BeFree_GAD |
Hypertensive disease | 0.002638474 | 2 | 0 | BeFree_GAD |
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