title: Reversion and interallelic complementation at four urease loci in Neurospora crassa.
abstract: Analysis of heat stability of urease in extracts of 24 revertants, six for each of four ure loci, revealed that at least one revertant for each locus had a heat stability about one-third that of wild type. Similar results were obtained with urease formed by interallelic complementation at the ure-2 and ure-4 loci, but interallelic complementation at the ure-1 and ure-3 loci produced insufficient urease activity for analysis. The data are interpreted to suggest, as a tentative model, a structural function for each of the four ure loci.
mesh_terms: D000483:Alleles; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D005816:Genetic Complementation Test; D006358:Hot Temperature; D009154:Mutation; D009491:Neurospora / Q000235:genetics*; D009492:Neurospora crassa / Q000235:genetics*; D014510:Urease / Q000235:genetics*
chemical_list: D014510:Urease