GtcA is required for LTA glycosylation in Listeria monocytogenes serovar 1/2a and Bacillus subtilis
GtcA is required for LTA glycosylation in Listeria monocytogenes serovar 1/2a and Bacillus subtilis
复制标题
单核细胞增生李斯特菌血清型 1/2a 和枯草芽孢杆菌中的 LTA 糖基化需要 GtcA
DOI:
10.1101/2019.12.12.873851
复制
发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Rismondo J
中科院分区:
文献类型:
--
作者:
Rismondo J
The cell wall polymers wall teichoic acid (WTA) and lipoteichoic acid (LTA) are often modified with glycosyl and D-alanine residues. Recent studies have shown that a three-component glycosylation system is used for the modification of LTA in several Gram-positive bacteria including Bacillus subtilis and Listeria monocytogenes. In the L. monocytogenes 1/2a strain 10403S, the cytoplasmic glycosyltransferase GtlA is thought to use UDP-galactose to produce the C 55-P-galactose lipid intermediate, which is transported across the membrane by an unknown flippase. Next, the galactose residue is transferred onto the LTA backbone on the outside of the cell by the glycosyltransferase GtlB. Here we show that GtcA is necessary for the glycosylation of LTA in L. monocytogenes 10403S and B. subtilis 168 and we hypothesize that these proteins act as C 55-P-sugar flippases. With this we revealed that GtcA is involved in the glycosylation of both teichoic acid polymers in L. monocytogenes 10403S, namely WTA with N-acetylglucosamine and LTA with galactose residues. These findings indicate that the L. monocytogenes GtcA protein can act on different C 55-P-sugar intermediates. Further characterization of GtcA in L. monocytogenes led to the identification of residues essential for its overall function as well as residues, which predominately impact WTA or LTA glycosylation.
登录
查看更多内容
影响因子:
15.3
作者:
Morath, Siegfried;Stadelmaier, Andreas;Geyer, Armin;Schmidt, Richard R;Hartung, Thomas
通讯作者:
Hartung, Thomas
影响因子:
4.8
作者:
H. Yerushalmi;M. Lebendiker;S. Schuldiner
通讯作者:
S. Schuldiner
影响因子:
11.4
作者:
Schirner, Kathrin;Marles-Wright, Jon;Errington, Jeff
通讯作者:
Errington, Jeff
影响因子:
4.8
作者:
Aixin Yan;Z. Guan;C. Raetz
通讯作者:
Aixin Yan;Z. Guan;C. Raetz
DOI:
--
发表时间:
1975
期刊:
European Journal of Biochemistry
影响因子:
--
作者:
R. Lotan;N. Sharon;D. Mirelman
通讯作者:
D. Mirelman