4UOO

Structure of lipoteichoic acid synthase LtaS from Listeria monocytogenes

4UOO の概要

• エントリーDOI: 10.2210/pdb4uoo/pdb
• 関連するPDBエントリー: 4UOP 4UOR
• 分子名称: LIPOTEICHOIC ACID SYNTHASE, MAGNESIUM ION (2 entities in total)
• 機能のキーワード: transferase, lipoteichoic acid synthesis, cell wall, gram positive
• 由来する生物種: LISTERIA MONOCYTOGENES
• タンパク質・核酸の鎖数: 5
• 化学式量合計: 262389.69

構造登録者

Campeotto, I.,Freemont, P.,Grundling, A. (登録日: 2014-06-06, 公開日: 2014-08-27, 最終更新日: 2024-11-06)

主引用文献

Campeotto, I.,Percy, M.G.,MacDonald, J.T.,Forster, A.,Freemont, P.S.,Grundling, A.
Structural and mechanistic insight into the Listeria monocytogenes two-enzyme lipoteichoic acid synthesis system.
J. Biol. Chem., 289:28054-28069, 2014

PubMed Abstract: Lipoteichoic acid (LTA) is an important cell wall component required for proper cell growth in many Gram-positive bacteria. In Listeria monocytogenes, two enzymes are required for the synthesis of this polyglycerolphosphate polymer. The LTA primase LtaP(Lm) initiates LTA synthesis by transferring the first glycerolphosphate (GroP) subunit onto the glycolipid anchor and the LTA synthase LtaS(Lm) extends the polymer by the repeated addition of GroP subunits to the tip of the growing chain. Here, we present the crystal structures of the enzymatic domains of LtaP(Lm) and LtaS(Lm). Although the enzymes share the same fold, substantial differences in the cavity of the catalytic site and surface charge distribution contribute to enzyme specialization. The eLtaS(Lm) structure was also determined in complex with GroP revealing a second GroP binding site. Mutational analysis confirmed an essential function for this binding site and allowed us to propose a model for the binding of the growing chain.

PubMed: 25128528
DOI: 10.1074/jbc.M114.590570

実験手法

X-RAY DIFFRACTION (3 Å)