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FEMS Microbiol Lett. 1991 Sep 15;67(1):79-84.

Cloning and nucleotide sequencing of the gene encoding the beta-lactamase from Citrobacter diversus.

Author information

1
Department of Biomedical Sciences and Technology and Biometry, Località Collemaggio, L'Aquila, Italy.

Abstract

The gene coding for the class A beta-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 beta-lactamase.

PMID:
1778425
DOI:
10.1016/0378-1097(91)90448-j
[Indexed for MEDLINE]

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