5H7P

NMR structure of the Vta1NTD-Did2(176-204) complex

5H7P の概要

• エントリーDOI: 10.2210/pdb5h7p/pdb
• 分子名称: Vacuolar protein sorting-associated protein VTA1, Vacuolar protein-sorting-associated protein 46 (2 entities in total)
• 機能のキーワード: endosomal sorting complexes required for transport, multivesicular bodies, microtubule-interacting and transport (mit) domain, mit-interacting motif 1 (mim1), saccharomyces cerevisiae proteins, protein transport
• 由来する生物種: Saccharomyces cerevisiae S288c (yeast); 詳細
• 細胞内の位置: Cytoplasm : Q06263; Endosome membrane; Peripheral membrane protein: P69771
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 22403.84

構造登録者

Shen, J.,Yang, Z.,Wild, C.J. (登録日: 2016-11-20, 公開日: 2016-12-21, 最終更新日: 2024-05-15)

主引用文献

Shen, J.,Yang, Z.,Wang, J.,Zhao, B.,Lan, W.,Wang, C.,Zhang, X.,Wild, C.J.,Liu, M.,Xu, Z.,Cao, C.
NMR studies on the interactions between yeast Vta1 and Did2 during the multivesicular bodies sorting pathway
Sci Rep, 6:38710-38710, 2016

PubMed Abstract: As an AAA-ATPase, Vps4 is important for function of multivesicular bodies (MVB) sorting pathway, which involves in cellular phenomena ranging from receptor down-regulation to viral budding to cytokinesis. The activity of Vps4 is stimulated by the interactions between Vta1 N-terminus (named as Vta1NTD) and Did2 fragment (176-204 aa) (termed as Did2) or Vps60 (128-186 aa) (termed as Vps60). The structural basis of how Vta1NTD binds to Did2 is still unclear. To address this, in this report, the structure of Did2 in complex with Vta1NTD was determined by NMR techniques, demonstrating that Did2 interacts with Vta1NTD through its helix α6' extending over the 2 and the 3 α-helices of Vta1NTD microtubule interacting and transport 1 (MIT1) domain. The residues within Did2 helix α6' in the interface make up of an amino acid sequence as E'xxL'xxR'L'xxL'R', identical to type 1 MIT-interacting motif (MIM1) (D/E)xxLxxRLxxL(K/R) of CHMP1A observed in Vps4-CHMP1A complex structure, indicating that Did2 binds to Vta1NTD through canonical MIM1 interactions. Moreover, the Did2 binding does not result in Vta1NTD significant conformational changes, revealing that Did2, similar to Vps60, enhances Vta1 stimulation of Vps4 ATPase activity in an indirect manner.

PubMed: 27924850
DOI: 10.1038/srep38710

実験手法

SOLUTION NMR