The Cryphonectria parasitica plasmid pUG1 contains a large ORF with motifs characteristic of family B DNA polymerases.

ABSTRACT: The isolation and characterization of the circular mitochondrial plasmid pUG1 from the ascomycete Cryphonectria parasitica is described. The entire sequence (4182 bp) was obtained and high similarities to DNA-dependent DNA polymerases were revealed. Strikingly common features with the DNA polymerases encoded by the Neurospora intermedia plasmids Fiji and LaBelle, such as matches to the conserved motifs A and B and the presence of TTD instead of DTD in motif C, were found, suggesting the existence of a distinct group of members of the B DNA family polymerases. These strong similarities between the plasmids might suggest a common origin of the C.parasitica and the Neurospora plasmids.

SUBMITTER: Gobbi E 

PROVIDER: S-EPMC146879 | biostudies-other | 1997 Aug

REPOSITORIES: biostudies-other