具有与葡糖基转移酶调控基因rgg相似的遗传决定因素的口腔链球菌。
Oral streptococci with genetic determinants similar to the glucosyltransferase regulatory gene, rgg.
作者信息
Vickerman M M, Sulavik M C, Clewell D B
机构信息
Department of Microbiology and Immunology, School of Medicine, University of Michigan, Ann Arbor 48109, USA.
出版信息
Infect Immun. 1995 Nov;63(11):4524-7. doi: 10.1128/iai.63.11.4524-4527.1995.
Abstract
The Streptococcus gordonii Challis glucosyltransferase structural gene, gtfG, is positively regulated by the upstream gene, rgg, the only described gtf regulatory determinant in oral streptococci. Southern hybridization analyses indicated that rgg-like and gtfG-like determinants were present on the same HindIII fragment in strains of S. gordonii, Streptococcus sanguis, and Streptococcus oralis, whereas no rgg-like determinants were detected in mutans streptococci, Streptococcus mitis, and Streptococcus salivarius.
摘要
戈登氏链球菌查利斯株葡糖基转移酶结构基因gtfG受上游基因rgg正向调控，rgg是口腔链球菌中唯一已描述的gtf调控决定因素。Southern杂交分析表明，rgg样和gtfG样决定因素存在于戈登氏链球菌、血链球菌和口腔链球菌菌株的同一HindIII片段上，而在变形链球菌、缓症链球菌和唾液链球菌中未检测到rgg样决定因素。
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