Not Just Another Scaffolding Protein Family: The Multifaceted MPPs.

Not Just Another Scaffolding Protein Family: The Multifaceted MPPs.
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DOI:
10.3390/molecules25214954
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发表时间:
2020-10-26
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Czogalla A
Czogalla A
中科院分区:
其他
文献类型:
--
作者:
Chytła A;Gajdzik-Nowak W;Olszewska P;Biernatowska A;Sikorski AF;Czogalla A

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膜棕榈酰化蛋白 (MPP) 是一大类多域蛋白的亚家族,即膜相关鸟苷酸激酶 (MAGUK)。 MPP 的普遍表达和多结构域结构提供了在细胞膜上形成多种蛋白质复合物的能力,这些蛋白质复合物参与广泛的细胞过程,包括建立适当的细胞结构、极性和细胞粘附。各种细胞类型中 MPP 依赖性复合物的形成似乎基于相似的原理,但涉及不同蛋白质组的成员,例如包含 4.1-ezrin-radixin-moesin (FERM) 结构域的蛋白质、极性蛋白质或其他 MAGUK,显示出其多方面的性质。在这篇综述中,我们讨论了 MPP 家族在多种蛋白质复合物形成中的功能。值得注意的是,我们描述了它们对细胞生理学的重要作用,因为复合物中涉及的蛋白质之间相互作用的丧失会产生各种负面后果。此外,基于最近关于膜筏形成机制的研究,我们对 MPP 在侧膜组织中可能发挥的作用有了新的认识。
Membrane palmitoylated proteins (MPPs) are a subfamily of a larger group of multidomain proteins, namely, membrane-associated guanylate kinases (MAGUKs). The ubiquitous expression and multidomain structure of MPPs provide the ability to form diverse protein complexes at the cell membranes, which are involved in a wide range of cellular processes, including establishing the proper cell structure, polarity and cell adhesion. The formation of MPP-dependent complexes in various cell types seems to be based on similar principles, but involves members of different protein groups, such as 4.1-ezrin-radixin-moesin (FERM) domain-containing proteins, polarity proteins or other MAGUKs, showing their multifaceted nature. In this review, we discuss the function of the MPP family in the formation of multiple protein complexes. Notably, we depict their significant role for cell physiology, as the loss of interactions between proteins involved in the complex has a variety of negative consequences. Moreover, based on recent studies concerning the mechanism of membrane raft formation, we shed new light on a possible role played by MPPs in lateral membrane organization.
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