The gene coding for the class A β-lactamase of Citrobacter diversus has been cloned and sequenced. It contains the information for a 294-amino-acid precursor protein, including a 27-residue N-terminal signal peptide. The deduced sequence of the N-terminal portion of the mature protein is in excellent agreement with that determined by microsequencing of the protein and readily explains the pI differences observed between the naturally occurring forms I and II of the enzyme. The sequence of the mature protein exhibits a very high degree of similarity with that of the Klebsiella oxytoca class A β-lactamase. © 1991.
|Titolo:||Cloning and nucleotide sequencing of the gene encoding the β-lactamase from Citrobacter diversus|
|Autori interni:||PERILLI, MARIAGRAZIA|
|Data di pubblicazione:||1991|
|Rivista:||FEMS MICROBIOLOGY LETTERS|
|Appare nelle tipologie:||1.1 Articolo in rivista|