Affiliation: Meiji University
Asanuma N, Kanada K, Hino T. Molecular properties and transcriptional control of the phosphofructokinase and pyruvate kinase genes in a ruminal bacterium, Streptococcus bovis. Anaerobe. 2008;14:237-41 pubmed publisher
Asanuma N, Yoshizawa K, Hino T. Properties and role of glyceraldehyde-3-phosphate dehydrogenase in the control of fermentation pattern and growth in a ruminal bacterium, Streptococcus bovis. Curr Microbiol. 2009;58:283-7 pubmed publisher
..However, growth rates did not differ among JB1, JB1gapA, and JB1ldh. These results suggest that GAPDH is not involved in the control of the glycolytic flux and that lactate production is mainly controlled by LDH activity. ..
Asanuma N, Yoshii T, Hino T. Molecular characteristics of phosphoenolpyruvate: mannose phosphotransferase system in Streptococcus bovis. Curr Microbiol. 2004;49:4-9 pubmed
..The man operon and manO were constitutively transcribed without being affected by culture conditions, such as the sugar supplied (glucose, galactose, fructose, maltose, lactose, sucrose, or mannose), growth rate, or pH...
Asanuma N, Yoshii T, Hino T. Molecular characterization of CcpA and involvement of this protein in transcriptional regulation of lactate dehydrogenase and pyruvate formate-lyase in the ruminal bacterium Streptococcus bovis. Appl Environ Microbiol. 2004;70:5244-51 pubmed
..Thus, CcpA appears to be involved in the global regulation of sugar utilization in S. bovis. ..
Asanuma N, Yoshii T, Hino T. Molecular characterization and transcription of the luxS gene that encodes LuxS autoinducer 2 synthase in Streptococcus bovis. Curr Microbiol. 2004;49:366-71 pubmed
..bovis acts as a signal for adjusting cell physiology and metabolism in response to environmental conditions. However, the role of LuxS in S. bovis, including the regulation of AI-2 synthesis,, remains to be clarified...
Asanuma N, Ishiwata M, Yoshii T, Kikuchi M, Nishina Y, Hino T. Characterization and transcription of the genes involved in butyrate production in Butyrivibrio fibrisolvens type I and II strains. Curr Microbiol. 2005;51:91-4 pubmed
..Amino acid identity appeared to be higher within the same type than between types I and II. The clustered genes were shown to be cotranscribed, and constitutively transcribed without being affected significantly by culture conditions...
Asanuma N, Yoshii T, Kanada K, Yoshizawa K, Arai Y, Ichikawa T, et al
. Involvement of two-component signal transduction system, ComDE, in the regulation of growth and genetic transformation, in the ruminal bacterium Streptococcus bovis. Anaerobe. 2010;16:405-11 pubmed publisher
..bovis growth in addition to competence development. This is the first report suggesting that an autoinducing peptide functions in the ruminal ecosystem...
Asanuma N, Yoshii T, Hino T. Molecular characteristics and transcription of the gene encoding a multifunctional alcohol dehydrogenase in relation to the deactivation of pyruvate formate-lyase in the ruminal bacterium Streptococcus bovis. Arch Microbiol. 2004;181:122-8 pubmed publisher
..Partition of the flow from pyruvate appears to be mainly regulated by the activities of lactate dehydrogenase and PFL...
Asanuma N, Iwamoto M, Yoshii T, Hino T. Molecular characterization and transcriptional regulation of nitrate reductase in a ruminal bacterium, Selenomonas ruminantium. J Gen Appl Microbiol. 2004;50:55-63 pubmed
..Addition of fumarate stimulated nitrate reduction, which was caused by increased cell growth because of increased acquirement of ATP via electron transport phosphorylation coupled with fumarate reduction...