2YA1

Product complex of a multi-modular glycogen-degrading pneumococcal virulence factor SpuA

2YA1 の概要

• エントリーDOI: 10.2210/pdb2ya1/pdb
• 関連するPDBエントリー: 2J44 2YA0 2YA2
• 関連するBIRD辞書のPRD_ID: PRD_900009 PRD_900010
• 分子名称: PUTATIVE ALKALINE AMYLOPULLULANASE, alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose, alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose, ... (7 entities in total)
• 機能のキーワード: hydrolase, glycoside hydrolase
• 由来する生物種: STREPTOCOCCUS PNEUMONIAE
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 116884.46

構造登録者

Lammerts van Bueren, A.,Ficko-Blean, E.,Pluvinage, B.,Hehemann, J.H.,Higgins, M.A.,Deng, L.,Ogunniyi, A.D.,Stroeher, U.H.,Warry, N.E.,Burke, R.D.,Czjzek, M.,Paton, J.C.,Vocadlo, D.J.,Boraston, A.B. (登録日: 2011-02-17, 公開日: 2011-04-20, 最終更新日: 2023-12-20)

主引用文献

Lammerts Van Bueren, A.,Ficko-Blean, E.,Pluvinage, B.,Hehemann, J.,Higgins, M.A.,Deng, L.,Ogunniyi, A.D.,Stroeher, U.H.,El Warry, N.,Burke, R.D.,Czjzek, M.,Paton, J.C.,Vocadlo, D.J.,Boraston, A.B.
The Conformation and Function of a Multimodular Glycogen-Degrading Pneumococcal Virulence Factor.
Structure, 19:640-, 2011

PubMed Abstract: SpuA is a large multimodular cell wall-attached enzyme involved in the degradation of glycogen by the pathogenic bacterium Streptococcus pneumoniae. The deletion of the gene encoding SpuA from the bacterium resulted in a strain with reduced competitiveness in a mouse model of virulence relative to the parent strain, linking the degradation of host-glycogen to the virulence of the bacterium. Through the combined use of X-ray crystallography, small-angle X-ray scattering, and inhibitor binding, the molecular features involved in substrate recognition by this complex protein are revealed. This uniquely illustrates the complexity of the active site, the conformational changes incurred during carbohydrate binding by this protein, and the interaction and cooperation of its composite modules during this process. New insight into the function of this particular pneumococcal virulence factor is provided along with substantial contributions to the nascent framework for understanding the structural and functional interplay between modules in multimodular carbohydrate-active enzymes.

PubMed: 21565699
DOI: 10.1016/J.STR.2011.03.001

実験手法

X-RAY DIFFRACTION (2.25 Å)