The uptake of amino acids and peptides byStreptococcus lactis
Autor: | F. H. C. Stewart, G. R. Jago, Garry H. Rice, Alan J. Hillier |
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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 |
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