Identification of three genes encoding for the late acyltransferases of lipid A in Cronobacter sakazakii.
Identification of three genes encoding for the late acyltransferases of lipid A in Cronobacter sakazakii.
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坂崎克罗诺杆菌中编码脂质 A 晚期酰基转移酶的三个基因的鉴定。
DOI:
10.3390/md11020377
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发表时间:
2013-01-31
期刊:
影响因子:
5.4
通讯作者:
Wang X
中科院分区:
文献类型:
--
作者:
Cai L;Li Y;Tao G;Guo W;Zhang C;Wang X
Lipid A, the hydrophobic anchor of lipopolysaccharide, is an essential component in the outer membrane of most Gram-negative bacteria. Food-borne pathogen Cronobacter sakazakii synthesizes two lipid A species, differing by the length of the secondary acyl chain. In this work, we identified three genes ESA02293, ESA02951 and ESA01386 encoding for the late acyltransferases of lipid A biosynthesis pathway in C. sakazakii. Based on the sequence alignment, proteins YP_001438378.1 encoded by ESA02293, YP_001439016.1 encoded by ESA02951, and YP_001437482.1 encoded by ESA01386 are homologous to E. coli LpxL, LpxP and LpxM, respectively. Functions of the three acyltransferases were confirmed by overexpressing the genes in E. coli, isolating lipid As and analyzing their structures using an ESI/MS. C. sakazakii LpxL and LpxM transfer a C14:0 secondary acyl chain to the 2′- and 3′-position of lipid A, respectively. C. sakazakii LpxP can transfer either a C16:1 or a C14:0 secondary acyl chains to the 2′-position of lipid A.
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影响因子:
1.3
作者:
Zhang, Chan;Li, Yanyan;Wang, Xiaoyuan
通讯作者:
Wang, Xiaoyuan
DOI:
10.1073/pnas.1202908109
发表时间:
2012-05-29
影响因子:
11.1
作者:
Li, Yanyan;Powell, Daniel A.;Ernst, Robert K.
通讯作者:
Ernst, Robert K.
影响因子:
2.9
作者:
Metzger, Louis E.;Raetz, Christian R. H.
通讯作者:
Raetz, Christian R. H.
影响因子:
4.8
作者:
Vorachek-Warren, MK;Ramirez, S;Raetz, CRH
通讯作者:
Raetz, CRH
DOI:
10.1073/pnas.0705833104
发表时间:
2007-08-21
影响因子:
11.1
作者:
Williams, Allison H.;Raetz, Christian R. H.
通讯作者:
Raetz, Christian R. H.