| Literature DB >> 1310505 |
N Goosen1, R G Huinen, P van de Putte.
Abstract
At least four genes are required for the biosynthesis of the coenzyme pyrrolo-quinoline-quinone (PQQ) in Acinetobacter calcoaceticus. The DNA region where one of these genes was mapped codes for a polypeptide of only 24 amino acids. Here we show that indeed this small peptide is essential for PQQ synthesis. Site-directed mutagenesis shows that at least one glutamate and one tyrosine residue of the polypeptide are essential for its function.Entities:
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Year: 1992 PMID: 1310505 PMCID: PMC206443 DOI: 10.1128/jb.174.4.1426-1427.1992
Source DB: PubMed Journal: J Bacteriol ISSN: 0021-9193 Impact factor: 3.490