CXCR4

Chemokine (C-X-C motif) receptor 4
CXCR4 in complex with IT1t(PDB 3OE9)
有效结构
PDB 直系同源检索:PDBe, RCSB
PDB查询代码列表

2K03, 2K04, 2K05, 3ODU, 3OE0, 3OE6, 3OE8, 3OE9

标识
代号 CXCR4; CD184; D2S201E; FB22; HM89; HSY3RR; LAP3; LCR1; LESTR; NPY3R; NPYR; NPYRL; NPYY3R; WHIM
扩展标识 遗传学:162643 鼠基因:109563 同源基因:20739 IUPHAR:  CXCR4 ChEMBL: 2107 GeneCards: CXCR4 Gene
基因本体论描述
分子功能 · actin binding

· G-protein coupled receptor activity
· protein binding
· coreceptor activity
· C-X-C chemokine receptor activity
· C-X-C chemokine binding
· ubiquitin protein ligase binding
· myosin light chain binding

· ubiquitin binding
细胞成分 · cytoplasm

· plasma membrane
· external side of plasma membrane
· cell surface
· integral to membrane
· cytoplasmic membrane-bounded vesicle
· growth cone
· cell leading edge

· cytoplasmic vesicle
生物过程 · activation of MAPK activity

· patterning of blood vessels
· response to hypoxia
· ameboidal cell migration
· neuron migration
· dendritic cell chemotaxis
· apoptotic process
· inflammatory response
· G-protein coupled receptor signaling pathway
· elevation of cytosolic calcium ion concentration
· germ cell development
· brain development
· motor neuron axon guidance
· germ cell migration
· response to virus
· viral reproduction
· virus-host interaction
· calcium-mediated signaling
· viral reproductive process
· entry into host cell
· regulation of cell migration
· T cell proliferation
· neutrophil activation
· myelin maintenance
· positive regulation of oligodendrocyte differentiation
· regulation of chemotaxis

· neural precursor cell proliferation
Sources: Amigo / QuickGO
RNA表达模式
更多表达数据
直系同源体
物种 人类 小鼠
Entrez 7852 12767
Ensembl ENSG00000121966 ENSMUSG00000045382
UniProt P61073 P70658
mRNA序列 NM_001008540 NM_009911
蛋白序列 NP_001008540 NP_034041
基因位置 Chr 2:
136.87 – 136.88 Mb
Chr 1:
128.59 – 128.59 Mb
PubMed查询 [1] [2]

趋化因子受体CXCR4趋化因子基质细胞衍生因子-1(CXCL12)的特异受体[1][2]。CXCL12对淋巴细胞有强烈的趋化作用。该受体是用来提取纯化艾滋病毒的几个趋化因子受体之一。现在还不清楚是否出现使用CXCR4的人类免疫缺乏病毒是免疫缺乏的原因还是后果。

另外,CXCR4还可能人类胚胎发育中的着床过程中起作用。

作为趋化因子受体与配体,CXCR4和CXCL12比较特殊,他们是一配一的受体配体关系。绝大数趋化因子受体有多个配体,一个趋化因子可以结合到两个或多个受体。

CXCR4的配体CXCL12在造血干细胞移居骨髓在起重要作用[3]。影响或阻断CXCR4受体配体结合,可以调节造血干细胞的迁徙,这对骨髓造血干细胞移植可能十分有用。目前的试验药物有:粒细胞集落刺激因子(Granulocyte colony-stimulating factor)和Plerixafor(AMD3100)。但这些药物尚未临床使用。

CXCR4在体内大部分组织和器官上都有表达,它是由352个氨基酸组成的GPCR(G蛋白偶联受体),具有七次穿膜结构。 CXCR4参与体内多种生理机制,包括参与HIV-1病毒侵染【1】,造血功能【2】,胚胎发育【3-7】,及肿瘤迁移等【8】。

参考文献

  1. ^ Deng H, et al., Identification of a major co-receptor for primary isolates of HIV-1. Nature. 1996 Jun 20;381(6584):661-6.
  2. ^ Oberlin E, et al., The CXC chemokine SDF-1 is the ligand for LESTR/fusin and prevents infection by T-cell-line-adapted HIV-1. Nature. 1996 Aug 29;382(6594):833
  3. ^ Zou YR, Kottmann AH, Kuroda M, Taniuchi I, Littman DR. Function of the chemokine receptor CXCR4 in haematopoiesis and in cerebellar development. Nature. 1998 Jun 11;393(6685):595-9.
  • Dragic, T., An overview of the determinants of CCR5 and CXCR4 co-receptor function. J Gen Virol, 2001. 82(Pt 8): p. 1807-14.
  • Maekawa, T. and T. Ishii, Chemokine/receptor dynamics in the regulation of hematopoiesis. Intern Med, 2000. 39(2): p. 90-100.
  • Nagasawa, T., et al., Defects of B-cell lymphopoiesis and bone-marrow myelopoiesis in mice lacking the CXC chemokine PBSF/SDF-1. Nature, 1996. 382(6592): p. 635-8.
  • Tachibana, K., et al., The chemokine receptor CXCR4 is essential for vascularization of the gastrointestinal tract. Nature, 1998. 393(6685): p. 591-4.
  • Zou, Y.R., et al., Function of the chemokine receptor CXCR4 in haematopoiesis and in cerebellar development. Nature, 1998. 393(6685): p. 595-9.
  • McGrath, K.E., et al., Embryonic expression and function of the chemokine SDF-1 and its receptor, CXCR4. Dev Biol, 1999. 213(2): p. 442-56.
  • Lu, M., E.A. Grove, and R.J. Miller, Abnormal development of the hippocampal dentate gyrus in mice lacking the CXCR4 chemokine receptor. Proc Natl Acad Sci U S A, 2002. 99(10): p. 7090-5.
  • Burger, J.A. and T.J. Kipps, CXCR4: a key receptor in the crosstalk between tumor cells and their microenvironment. Blood, 2006. 107(5): p. 1761-7.
趋化因子受体
(G蛋白偶联受体)
CC
  • CCR1/CCRL1
  • CCR2
  • CCRL2
  • CCR3
  • CCR4
  • CCR5
  • CCR6
  • CCR7
  • CCR8
  • CCR9
  • CCR10
CXC
其它
  • CX3C
    • CX3CR1
  • XC
    • XCR1
  • CCBP2
  • CMKLR1
肿瘤坏死因子受体
1-10
  • TNFRSF1 (CD120)
  • TNFRSF1A (CD120a)
  • TNFRSF1B (CD120b)
  • TNFRSF3(淋巴毒素β受体)
  • TNFRSF4(CD134)
  • TNFRSF5(CD40)
  • TNFRSF6(FAS)
  • TNFRSF6B
  • TNFRSF7 (CD27)
  • TNFRSF8 (CD30)
  • TNFRSF9 (CD137)
11-20
  • TNFRSF10A (CD261)
  • TNFRSF10B (CD262)
  • TNFRSF10C (CD263)
  • TNFRSF10D (CD264)
  • TNFRSF11A (CD265/RANK)
  • TNFRSF11B(骨保护素)
  • TNFRSF12A (CD266)
  • TNFRSF13B (CD267)
  • TNFRSF13C
  • TNFRSF14 (CD268)
  • TNFRSF16 (神经生长因子受体)
  • TNFRSF17 (CD269)
  • TNFRSF18
  • TNFRSF19
21-25
  • TNFRSF21
  • TNFRSF25
  • TNFRSF27
JAK-STAT信号通路
I型
细胞因子受体
共用γ-链
  • 白介素受体
    • IL2R/IL2RA/IL2RB/IL15R
    • IL4R/IL13R/IL13RA1/IL13RA2
    • IL7R/IL7RA
    • IL9R
    • IL21R
共用β-链
  • 白介素受体
    • IL3R/IL3RA
    • IL5R/IL5RA
  • GM-CSF
gp130
  • 白介素受体
    • IL6RA
    • 11/IL11RA
    • 27/IL27RA
  • OSMR
  • LIFR
  • CNTFR
IL12RB1
  • Interleukin receptors
    • IL12R/IL12RB1/IL12RB2
    • IL23R23
其它
  • other CSF receptors
    • EPO
    • G-CSF
    • Thrombopoietin
II型
细胞因子受体
  • 白介素受体
    • IL10R/IL10RA/IL10RB/IL22R/IL22RA2
    • IL20R/IL20RA/IL20RB
    • IL28R
  • 干扰素受体
    • -α/β/IFNAR1/IFNAR2
    • -γ/IFNGR1/IFNGR2
免疫球蛋白超家族
  • IL1
    • IL1R1
    • IL1R2
  • IL18R/IL18R1
IL-17 family
  • IL-17
    • IL17RA
    • IL17RB
    • IL17RC
    • IL17RD
    • IL17RE
酶联受体
  • 受体蛋白丝氨酸/苏氨酸激酶:CSF1R
  • KIT
  • 受体蛋白丝氨酸/苏氨酸激酶:TGF-beta
    • TGFBR1
    • TGFBR2
 
信号转导索引
描述
  • 胞外
    • 神經肽
    • 生长因子
    • 细胞因子
    • 激素
  • 細胞表面受體英语Template:Cell surface receptors
    • 配体门控离子通道
    • 酶联受體
    • G蛋白偶聯受體
    • 免疫球蛋白超家族英语Template:Immunoglobulin superfamily immune receptors
    • 整合素
    • 神經肽受體
    • 生長因子受體
    • 细胞因子受體
  • 胞內
    • 受體蛋白英语Template:Signal transducing adaptor proteins
    • GTP-binding英语Template:GTP-binding protein regulators
    • MAP激酶
  • 鈣信號
  • 脂質系號
  • 路徑
    • hedgehog
    • Wnt
    • TGF-β
    • MAPK ERK英语Template:MAPK ERK signaling pathway
    • notch英语Template:Notch signaling pathway
    • JAK-STAT
    • 細胞凋亡
    • hippo英语Template:Hippo signaling pathway
    • TLR