1.
Appl Environ Microbiol
; 69(9): 5699-701, 2003 Sep.
Artículo
en Inglés
| MEDLINE
| ID: mdl-12957965
RESUMEN
Sequencing the glnA genes of two chemically induced Azospirillum brasilense glutamine synthetase mutants revealed an Arg-->Cys mutation, corresponding to the glutamate binding site, in one mutant and an Asp-->Asn mutation, corresponding to the ammonium binding site, in the second mutant. The phenotypic changes in these mutants are discussed in relation to their genotypes.