Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-3-23
pubmed:abstractText
The gene ade6 is located on chromosome III of the fission yeast Schizosaccharomyces pombe. It codes for the enzyme phosphoribosylaminoimidazole carboxylase involved in purine biosynthesis. A DNA fragment of 3043 nucleotides has been sequenced. It complements ade6 mutations when present on plasmids. An uninterrupted open reading frame of 552 amino acid residues was identified. A method for the cloning of chromosomal mutations by repair of gapped replication vectors in vivo has been developed. Twelve ade6 mutant alleles have been isolated. The sequence alterations of four mutant alleles have been determined. Among them are the ade6-M26 recombination hot spot mutation and the nearby ade6-M375 control mutation. Both are G to T base substitutions, converting adjacent glycine codons to TGA termination codons. They are suppressed by defined tRNA nonsense suppressors of the UGA type. The ade6-M26 mutation leads to a tenfold increase of the occurrence of conversion tetrads in comparison with other ade6 mutations. Possible explanations for the M26-induced increase of recombination frequency are discussed in relation to specific features of the nucleotide sequence identified in the region of the M26 mutation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-2836
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
204
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
917-25
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
DNA sequence analysis of the ade6 gene of Schizosaccharomyces pombe. Wild-type and mutant alleles including the recombination host spot allele ade6-M26.
pubmed:affiliation
Institute of General Microbiology, University of Bern, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't