4D3K

Structure of Bacillus subtilis nitric oxide synthase in complex with 6,6'-((5-(3-aminopropyl)-1,3-phenylene)bis(ethane-2,1-diyl))bis(4- methylpyridin-2-amine)

4D3K の概要

• エントリーDOI: 10.2210/pdb4d3k/pdb
• 関連するPDBエントリー: 4D3I 4D3J 4D3M 4D3N 4D3O
• 分子名称: NITRIC OXIDE SYNTHASE OXYGENASE, PROTOPORPHYRIN IX CONTAINING FE, CHLORIDE ION, ... (7 entities in total)
• 機能のキーワード: oxidoreductase, nitric, nitric oxide synthase
• 由来する生物種: BACILLUS SUBTILIS
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 85975.48

構造登録者

Holden, J.K.,Poulos, T.L. (登録日: 2014-10-22, 公開日: 2015-01-14, 最終更新日: 2023-12-20)

主引用文献

Holden, J.K.,Kang, S.,Hollingsworth, S.A.,Li, H.,Lim, N.,Chen, S.,Huang, H.,Xue, F.,Tang, W.,Silverman, R.B.,Poulos, T.L.
Structure-Based Design of Bacterial Nitric Oxide Synthase Inhibitors.
J.Med.Chem., 58:994-, 2015

PubMed Abstract: Inhibition of bacterial nitric oxide synthase (bNOS) has the potential to improve the efficacy of antimicrobials used to treat infections by Gram-positive pathogens Staphylococcus aureus and Bacillus anthracis. However, inhibitor specificity toward bNOS over the mammalian NOS (mNOS) isoforms remains a challenge because of the near identical NOS active sites. One key structural difference between the NOS isoforms is the amino acid composition of the pterin cofactor binding site that is adjacent to the NOS active site. Previously, we demonstrated that a NOS inhibitor targeting both the active and pterin sites was potent and functioned as an antimicrobial ( Holden , , Proc. Natl. Acad. Sci. U.S.A. 2013 , 110 , 18127 ). Here we present additional crystal structures, binding analyses, and bacterial killing studies of inhibitors that target both the active and pterin sites of a bNOS and function as antimicrobials. Together, these data provide a framework for continued development of bNOS inhibitors, as each molecule represents an excellent chemical scaffold for the design of isoform selective bNOS inhibitors.

PubMed: 25522110
DOI: 10.1021/JM501723P

実験手法

X-RAY DIFFRACTION (2.017 Å)