2C94

LUMAZINE SYNTHASE FROM MYCOBACTERIUM TUBERCULOSIS BOUND TO 3-(1,3,7- TRIHYDRO-9-D-RIBITYL-2,6,8-PURINETRIONE-7-YL) 1,1 difluoropentane-1- PHOSPHATE

2C94 の概要

• エントリーDOI: 10.2210/pdb2c94/pdb
• 関連するPDBエントリー: 1W19 1W29 2C92 2C97 2C9B 2C9D
• 分子名称: 6,7-DIMETHYL-8-RIBITYLLUMAZINE SYNTHASE, 3-(1,3,7-TRIHYDRO-9-D-RIBITYL-2,6,8-PURINETRIONE-7-YL) 1,1 DIFLUOROPENTANE-1-PHOSPHATE, POTASSIUM ION, ... (4 entities in total)
• 機能のキーワード: transferase, riboflavin biosynthesis, mycobacterium tuberculosis, lumazine synthase, inhibitor binding
• 由来する生物種: MYCOBACTERIUM TUBERCULOSIS
• タンパク質・核酸の鎖数: 5
• 化学式量合計: 85044.13

構造登録者

Morgunova, E.,Illarionov, B.,Jin, G.,Haase, I.,Fischer, M.,Cushman, M.,Bacher, A.,Ladenstein, R. (登録日: 2005-12-09, 公開日: 2006-12-13, 最終更新日: 2023-12-13)

主引用文献

Morgunova, E.,Illarionov, B.,Sambaiah, T.,Haase, I.,Bacher, A.,Cushman, M.,Fischer, M.,Ladenstein, R.
Structural and Thermodynamic Insights Into the Binding Mode of Five Novel Inhibitors of Lumazine Synthase from Mycobacterium Tuberculosis.
FEBS J., 273:4790-, 2006

PubMed Abstract: Recently published genomic investigations of the human pathogen Mycobacterium tuberculosis have revealed that genes coding the proteins involved in riboflavin biosynthesis are essential for the growth of the organism. Because the enzymes involved in cofactor biosynthesis pathways are not present in humans, they appear to be promising candidates for the development of therapeutic drugs. The substituted purinetrione compounds have demonstrated high affinity and specificity to lumazine synthase, which catalyzes the penultimate step of riboflavin biosynthesis in bacteria and plants. The structure of M. tuberculosis lumazine synthase in complex with five different inhibitor compounds is presented, together with studies of the binding reactions by isothermal titration calorimetry. The inhibitors showed the association constants in the micromolar range. The analysis of the structures demonstrated the specific features of the binding of different inhibitors. The comparison of the structures and binding modes of five different inhibitors allows us to propose the ribitylpurinetrione compounds with C4-C5 alkylphosphate chains as most promising leads for further development of therapeutic drugs against M. tuberculosis.

PubMed: 16984393
DOI: 10.1111/J.1742-4658.2006.05481.X

実験手法

X-RAY DIFFRACTION (1.9 Å)