1.
J Bacteriol
; 184(4): 1192-5, 2002 Feb.
Artículo
en Inglés
| MEDLINE
| ID: mdl-11807081
RESUMEN
The identity of amino acid 149 of Escherichia coli sigma(70) has been reported variably as either arginine or aspartic acid. We show that the behavior of both a region 1.2 deletion and a single-amino-acid substitution at position 122 are greatly affected by the identity of amino acid 149.