Partial gene clone and nif gene homologous sequence analysis of Streptococcus sanguis
Pan, Y.; Wang, H.; Jin, C.; Sun, K.
Hua Xi Kou Qiang Yi Xue Za Zhi 17(1): 11-13
1999
ISSN/ISBN: 1000-1182 PMID: 12539310 Document Number: 500981
To analyze the sequence of Streptococcus sanguis chromosome which contains one DNA fragment of 800 base pairs (bp) and discuss Streptococcus sanguis biological features of heredity. Streptococcus DNA of 800-bp genetic fragment was cloned and analyzed by using eukaryotic expression vector. By Genbank database, it showed that the 800-bp genetic sequence was highly homologous with other bacterial nifS and nifU gene, and the highest homologous score was 114. This nif gene of ATCC 10556 strain may correlate with nutrient metabolism and peroxide hydrogen release of Streptococcus sanguis.