the fast absorption of glycine , l-citrulline and l-methionine through the general amino acid permease was associated with the uptake of about 2 extra equivalents of protons per mol of amino acid absorbed , whereas the slower absorption of l-methionine , l-proline and , possibly , l-arginine through their specific permeases was associated with about 1 proton equivalent . l-canavanine and l-lysine were also absorbed with 1-2 equivalents of protons .
C0002520
amino acid
C0006825
canavanine