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1: DNA Seq. 1992;2(4):219-26.Links

Carbamoyl phosphate synthetase (CPSase) in the PYR1-3 multigene of Dictyostelium discoideum.

Elgar G, Schofield JP.

MRC Molecular Genetics Unit, MRC Centre, Cambridge.

We have isolated and sequenced the genomic DNA from the slime-mould Dictyostelium discoideum multi-gene (PYR1-3) encoding the carbamoyl phosphate synthetase II domain (CPSase, EC.6.3.5.5). We describe sequencing by oligo-walking directly on PCR product in the solid-phase, avoiding subcloning procedures. The 2.4 kb fragment completes the sequence of the PYR1-3 gene, has no introns, and has the same structure as the rudimentary gene of Drosophila melanogaster. Comparison with the carbamoyl phosphate synthetases (CPSase I and CPSase II) of other species supports the hypothesis that this gene has arisen by tandem duplication from a smaller common ancestral gene in the progenote.

PMID: 1627825 [PubMed - indexed for MEDLINE]