4EDV

The structure of the S. aureus DnaG RNA Polymerase Domain bound to pppGpp and Manganese

4EDV の概要

• エントリーDOI: 10.2210/pdb4edv/pdb
• 関連するPDBエントリー: 4E2K 4EDR 4EDT 4EDY 4EDZ 4EE1
• 分子名称: DNA primase, BENZAMIDINE, guanosine 5'-(tetrahydrogen triphosphate) 3'-(trihydrogen diphosphate), ... (5 entities in total)
• 機能のキーワード: catalytic domain, bacterial, nucleotide, nucleoside triphosphate, nucleoside polyphosphate, protein-ligand complex, transferase, transferase-transferase inhibitor complex, transferase/transferase inhibitor
• 由来する生物種: Staphylococcus aureus
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 38645.61

構造登録者

Rymer, R.U.,Solorio, F.A.,Chu, C.,Corn, J.E.,Wang, J.D.,Berger, J.M. (登録日: 2012-03-27, 公開日: 2012-07-25, 最終更新日: 2024-02-28)

主引用文献

Rymer, R.U.,Solorio, F.A.,Tehranchi, A.K.,Chu, C.,Corn, J.E.,Keck, J.L.,Wang, J.D.,Berger, J.M.
Binding Mechanism of Metal-NTP Substrates and Stringent-Response Alarmones to Bacterial DnaG-Type Primases.
Structure, 20:1478-1489, 2012

PubMed Abstract: Primases are DNA-dependent RNA polymerases found in all cellular organisms. In bacteria, primer synthesis is carried out by DnaG, an essential enzyme that serves as a key component of DNA replication initiation, progression, and restart. How DnaG associates with nucleotide substrates and how certain naturally prevalent nucleotide analogs impair DnaG function are unknown. We have examined one of the earliest stages in primer synthesis and its control by solving crystal structures of the S. aureus DnaG catalytic core bound to metal ion cofactors and either individual nucleoside triphosphates or the nucleotidyl alarmones, pppGpp and ppGpp. These structures, together with both biochemical analyses and comparative studies of enzymes that use the same catalytic fold as DnaG, pinpoint the predominant nucleotide-binding site of DnaG and explain how the induction of the stringent response in bacteria interferes with primer synthesis.

PubMed: 22795082
DOI: 10.1016/j.str.2012.05.017

実験手法

X-RAY DIFFRACTION (2.01 Å)