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中文名稱(chēng)

Ras相關(guān)蛋白R(shí)ab-4A 抗體

英文名字
Rab4 Antibody: Dylight 633
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StressMarq
產(chǎn)品貨號(hào)
SPC-141D-DY633
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背景資料
Rab4 is a 25kDa member of the Rab family of small guanosine triphosphatases (GTPases), Ras superfamily. Rab GTPases are central regulators of membrane trafficking in the eukaryotic cell. Their regulatory capacity depends on their ability to cycle between the GDP -bound inactive and GTP-bound active states. This conversion is regulated by GDP/GTP exchange factors (GEPs), GDP dissociation inhibitors (GDIs) and GTPase-activating proteins (GAPs) (1, 2). Activation of a Rab protein is coupled to its association with intracellular membranes, allowing it to recruit downstream effector proteins to the cytoplasmic surface of a sub-cellular compartment (3). Through these proteins, Rab GTPases regulate vesicle formation, actin- and tubulin-dependent vesicle movement, and membrane fusion(1). Rab proteins contain conserved regions involved in guanine-nucleotide binding, and hyper-variable COHO-terminal domains with a cysteine motif implicated in sub-cellular targeting. Post-translational modification of the cysteine motif with one or two geranylgeranyl groups is essential for the membrane association and correct intracellular localization of Rab proteins (3). Each Rab shows a characteristic sub-cellular distribution (4).nIn particular, over-expression of Rab4 causes a redistribution of receptors on plasma membrane versus endocytic compartments. The presence of excessive Rab4 leads to the accumulation of tranferrin receptors in non-acidic, post-endosomal recycling vesicles considered an intermediate compartment between endosomes and plasma membranes. Rab4 also plays a role in the translocation of glucose transporter (Glu4) in adipocytes in response to insulin (5). Mediating the association of Rab4 with transferring receptor-containing early endosomes takes place through the geranylgeranyl groups at its carboxyl-terminus. Membrane association is also cell cycle dependent, as phosphorylation at its c-terminal cdc2 kinase consensus sequence in mitotic cells leads to dissociation of Rab4 into the cytosol (6).
應(yīng)用類(lèi)型
WB | IHC | ICC/IF
免疫原
人 Rab4羧基末端肽
來(lái)源宿主
兔
反應(yīng)性
人 | 小鼠 | 大鼠
保存建議
廠家推薦藍(lán)冰運(yùn)輸。收到產(chǎn)品后建議保存于-20oC。
其他
StressMarq Biosciences Inc. 在2007年成立于加拿大維多利亞，是一家生物科技公司，專(zhuān)門(mén)從事試劑與試劑盒研究，服務(wù)范圍遍及2689多個(gè)國(guó)家。 StressMarq公司的核心技術(shù)領(lǐng)域?yàn)榧?xì)胞應(yīng)激（尤其是熱休克蛋白（HSP）領(lǐng)域，領(lǐng)先全球），離子通道，載體研究，同時(shí)在神經(jīng)科學(xué)領(lǐng)域推出特有的具有生物活性的Tau蛋白與A-突觸核蛋白。產(chǎn)品領(lǐng)域涉及到：細(xì)胞凋亡、細(xì)胞信號(hào)、通路和轉(zhuǎn)運(yùn)、細(xì)胞器標(biāo)志物、熱休克、神經(jīng)生物學(xué)、神經(jīng)科學(xué)、氧化應(yīng)激、磷酸化運(yùn)輸?shù)取３颂峁┯糜谶M(jìn)一步研究的相關(guān)工具外，Str
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