A IIIman protein is involved in the transport of glucose, mannose and fructose by oral streptococci.

A IIIman protein is involved in the transport of glucose, mannose and fructose by oral streptococci.
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IIIman 蛋白参与口腔链球菌对葡萄糖、甘露糖和果糖的转运。

DOI:
10.1111/j.1399-302x.1990.tb00427.x
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发表时间:
2007
影响因子:
--
通讯作者:
C. Vadeboncoeur
C. Vadeboncoeur
中科院分区:
--
文献类型:
--
作者:
S. Bourassa;L. Gauthier;R. Giguère;C. Vadeboncoeur

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我们在本文中指出,口腔链球菌的磷酸烯醇式丙酮酸:甘露糖磷酸转移酶系统转运葡萄糖、甘露糖和果糖需要一种我们称为IIIman的蛋白质组分的参与。通过DEAE-纤维素柱层析、DEAE-TSK柱层析、羟基磷灰石柱层析和Dyematrex Green A柱层析,从唾液链球菌中纯化了该蛋白。纯化后的蛋白在十二烷基硫酸钠-聚丙烯酰胺凝胶上以38900分子量的形式迁移。然而,磷蛋白的电泳分析和Western印迹实验表明,在唾液链霉菌的无膜细胞提取物中存在两种不同形式的IIIman,其相对分子质量分别为38,900和35,200。通过免疫扩散、Western印迹和[32]PEP的磷酸化,在唾液链球菌、变形链球菌、远缘链球菌和乳链球菌中发现了高分子形式的IIIman,而在粪链球菌、金黄色葡萄球菌、枯草芽孢杆菌和干酪乳杆菌中没有。针对唾液葡萄球菌IIIman的抗体不与大肠杆菌IIIman发生反应。
We show in this article that the transport of glucose, mannose and fructose by the phosphoenolpyruvate: mannose phosphotransferase system of oral streptococci requires the participation of a protein component that we have called IIIman. This protein was purified from Streptococcus salivarius by chromatography on DEAE-cellulose, DEAE-TSK, hydroxyapatite, and Dyematrex Green A. The purified protein migrated as a 38,900 molecular weight protein on a sodium dodecyl sulfate polyacrylamide gel. However, electrophoretic analysis of phosphoproteins and Western blot experiments indicated the presence in membrane-free cellular extracts of S. salivarius of 2 different forms of IIIman having molecular weights of 38,900 and 35,200. The presence of the high-molecular-weight form of IIIman was observed by immunodiffusion, Western blot and phosphorylation by [32]PEP in S. salivarius, Streptococcus mutans, Streptococcus sobrinus, and Streptococcus lactis but not in Streptococcus faecium, Staphylococcus aureus, Bacillus subtilis and Lactobacillus casei. Antibodies directed against the IIIman of S. salivarius did not react with the IIIman of Escherichia coli.
大肠杆菌中 D-甘露醇转运和利用所需酶的质粒定向合成。
DOI: 10.1073/pnas.78.12.7336
发表时间: 1981
影响因子: 11.1
作者:
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Pel 是一种允许 lambda DNA 穿透大肠杆菌的蛋白质,由 ptsM 中的基因编码,是磷酸转移酶系统利用甘露糖所必需的。
DOI: 10.1073/pnas.83.23.8934
发表时间: 1986
影响因子: 11.1
作者:
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DOI: --
发表时间: 1986
期刊: The Journal of biological chemistry
影响因子: --
作者:
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通讯作者: Roseman,S