The uptake of amino acids and peptides byStreptococcus lactis

Autor: F. H. C. Stewart, G. R. Jago, Garry H. Rice, Alan J. Hillier
Rok vydání: 1978
Předmět:
Zdroj: Journal of Dairy Research. 45:93-107
ISSN: 1469-7629
0022-0299
DOI: 10.1017/s0022029900016241
Popis: SummaryPeptide and amino acid transport inStreptococcus lactiswas both energy-and temperature-dependent. Separate systems were present for the transport of amino acids, dipeptides and oligopeptides as well as for individual amino acids. Both tri- and tetra-peptides were readily transported while an apparent size restriction at the point of uptake resulted in a relatively low rate of uptake of the pentapeptide. The effects of pH, temperature and salt concentration on the uptake of amino acids and peptides were studied. Exchange reactions played a significant role in the uptake of both peptides and amino acids.
Databáze: OpenAIRE