High-resolution structure of methionine gamma-lyase from Citrobacter freundii.

High-resolution structure of methionine gamma-lyase from Citrobacter freundii.
复制标题

弗氏柠檬酸杆菌蛋氨酸 γ-裂合酶的高分辨率结构。

DOI:
10.1107/s0907444907065390
复制
发表时间:
2008
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
通讯作者:
Demidkina,Tatyana
Demidkina,Tatyana
中科院分区:
--
文献类型:
--
作者:
Nikulin,Alexei;Revtovich,Svetlana;Morozova,Elena;Nevskaya,Natalia;Nikonov,Stanislav;Garber,Maria;Demidkina,Tatyana

文献摘要

参考文献

被引文献

相似文献

5‘-磷酸吡哆醛依赖的蛋氨酸γ-裂解酶参与含硫氨基酸的代谢。这种酶在一些厌氧病原体中是一个很有希望的靶点,在癌症细胞治疗中也是有效的。弗劳迪柠檬酸杆菌的mgl全酶的结构此前已在1.9 ä分辨率下确定。通过对晶化过程的改进,使原来确定的结构分辨率提高到1.35 ä,R和Rfre值分别为0.152和0.177。这种高分辨结构使我们有可能详细分析单体之间的相互作用,并揭示在活性酶形成过程中负责单体-单体识别的结构不变区域。还描述了辅因子结合模式和可能涉及底物识别和结合的柔性区域的细节。
Pyridoxal 5′-phosphate-dependent methionine γ-lyase (MGL) is involved in the metabolism of sulfur-containing amino acids. The enzyme is a promising target in some anaerobic pathogens and is effective in cancer-cell treatment. The structure of the MGL holoenzyme from Citrobacter freundii has previously been determined at 1.9 Å resolution. By modification of the crystallization procedure, the previously determined structure of C. freundii MGL has been improved to 1.35 Å resolution with R and Rfree values of 0.152 and 0.177, respectively. This high-resolution structure makes it possible to analyze the interactions between the monomers in detail and to reveal the structurally invariant regions that are responsible for monomer–monomer recognition during the formation of the active enzyme. Details of the mode of cofactor binding and of the flexible regions that may be involved in substrate recognition and binding are also described.
DOI: 10.1128/aac.45.6.1743-1745.2001
发表时间: 2001-06
影响因子: 4.9
作者:
G. H. Coombs;J. Mottram
通讯作者: G. H. Coombs;J. Mottram
Hayashi,H.:“用苯丙氨酸或甘氨酸替代色氨酸-140 对大肠杆菌天冬氨酸转氨酶功能的影响”Biochem.Biophys.Res.Commun.(1990)
DOI: --
发表时间: --
期刊:
影响因子: --
作者:
通讯作者: --
DOI: 10.1006/jmbi.1999.2997
发表时间: 1999-08-27
影响因子: 5.6
作者:
Käck, H;Sandmark, J;Lindqvist, Y
通讯作者: Lindqvist, Y
DOI: 10.1271/bbb.64.2336
发表时间: 2000-11-01
影响因子: 1.6
作者:
Inoue, H;Inagaki, K;Tanaka, H
通讯作者: Tanaka, H
DOI: 10.1042/bj2790675
发表时间: 1991-11-01
影响因子: 4.1
作者:
LOCKWOOD, BC;COOMBS, GH
通讯作者: COOMBS, GH