A reassessment of the structure of Paracoccus cytochrome c-550.
A reassessment of the structure of Paracoccus cytochrome c-550.
复制标题
副球菌细胞色素 c-550 结构的重新评估。
DOI：
10.1016/0022-2836(81)90445-9
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发表时间：
1981
影响因子：
5.6
通讯作者：
Sawyer,L
中科院分区：
文献类型：
--
作者：
Ambler,RP;Meyer,TE;Kamen,MD;Schichman,SA;Sawyer,L
已经报道了来自兼性好氧细菌Paracoccus pesticans的细胞色素c-550的氨基酸序列和三维结构（Timkovichet等人，1976; Timkovich & Dickerson，1976）。氨基酸序列显示出与杜鹃花科（紫色光养细菌）细胞色素2相当的相似性，但也有一些意想不到的特征。我们重新检查了氨基酸序列，发现了五处差异。该分子含有一个额外的色氨酸残基，在2.5 nm晶体学分析或原始序列研究中均未检测到。
An amino acid sequence and a three-dimensional structure of cytochromec-550 from the facultatively denitrifying aerobic bacteriumParacoccus denitrificanshave been reported (Timkovichet al., 1976; Timkovich & Dickerson, 1976). The amino acid sequence showed considerable similarity to Rhodospirillaceae (purple phototrophic bacterial) cytochromec2, but also had some unexpected features. We have reexamined the amino acid sequence and have found five discrepancies. The molecule contains an additional tryptophan residue, which was not detected in either the 2.5 Å crystallographic analysis or the original sequence investigation.