Phosphotransferase system of Streptococcus salivarius: characterization of the ptsH gene and its product.
Phosphotransferase system of Streptococcus salivarius: characterization of the ptsH gene and its product.
复制标题
唾液链球菌磷酸转移酶系统:ptsH 基因及其产物的表征。
DOI:
10.1016/0378-1119(93)90443-7
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发表时间:
1993
期刊:
影响因子:
3.5
通讯作者:
M. Frenette
中科院分区:
文献类型:
--
作者:
G. Gagnon;C. Vadeboncoeur;M. Frenette
TheStreptococcus salivariusptsHgene encoding histidine-containing phosphocarrier protein (HPr) of the phosphotransferase system (PTS) has been cloned, sequenced, and found to be part of aptsH,ptsIoperon. Upstream fromptsH, putative −35 and −10 boxes and a Shine-Dalgarno sequence highly similar to theEscherichia coliconsensus regulatory elements were identified. A second promoter, located in theptsHcoding sequence was also observed and is sufficient for the expression of theS. salivarius ptsIgene, encoding enzyme I of the PTS inE. coli[Gagnon et al., Gene 121 (1992) 71–78]. The amino acid sequence ofS. salivariusHPr, inferred from theptsHsequence, shared identity varying between 37 and 76% with known HPr from other bacteria. Moreover, theS. salivariusHPr shared 78% identity with an HPr-like protein ofAspergillus fumigatus, a eukaryotic mold that does not possess a functional PTS. Expression analysis ofS. salivariusHPr inE. colidemonstrated that (i)S. salivarius ptsHis expressed inE. coliunder the control of its own promoter, (ii)S. salivariusHPr synthesized byE. coliis completely processed by methionine aminopeptidase, and (iii)S. salivariusHPr is phosphorylated in vivo byE. colienzyme I. It was also observed that, inE. coli, the copy number of pUC18 bearingS. salivarius ptsHwas reduced more than 25-fold, as compared to pUC18 without an insertion.
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DOI:
10.1073/pnas.89.15.7056
发表时间:
1992
影响因子:
11.1
作者:
Fox,DK;Presper,KA;Adhya,S;Roseman,S;Garges,S
通讯作者:
Garges,S
影响因子:
3.9
作者:
Reizer,J;Deutscher,J;SaierJr,MH
通讯作者:
SaierJr,MH
影响因子:
16.6
作者:
Meadow,ND;Fox,DK;Roseman,S
通讯作者:
Roseman,S
影响因子:
2.9
作者:
Vadeboncoeur,C;Brochu,D;Reizer,J
通讯作者:
Reizer,J
DOI:
--
发表时间:
1987
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Saffen,DW;Presper,KA;Doering,TL;Roseman,S
通讯作者:
Roseman,S