Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1986-8-12
pubmed:abstractText
Human lymphocytes lacking functional HPRT enzyme after a dose of 300 rad X-radiation were cloned and the monoclonal populations expanded so that sufficient genomic DNA was obtained for Southern analysis. A total of 33 mutant clones were analysed. Wild-type clones showed no evidence of changes to the HPRT gene resolvable by Southern banding patterns whereas 17 of 33 mutant clones showed changes. The alterations observed included total gene deletions (3 clones) and partial gene deletions with or without the appearance of novel bands (12 clones). Two clones showed the appearance of novel bands only. There were no changes observed in 16 of the 33 mutant clones. Three clones showed changes inconsistent with deletion of portions of the gene. In these clones inversion seems to have been the most likely cause of the mutation. The spectrum of gene alterations following ionizing radiation appears different to that previously observed for spontaneous mutations. Consequently, ionizing radiation or radiomimetic agents would appear to be aetiologic, at the most, for only a minor proportion of in vivo somatic mutations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0027-5107
pubmed:author
pubmed:issnType
Print
pubmed:volume
162
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-12
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Molecular basis of X-ray-induced mutation at the HPRT locus in human lymphocytes.
pubmed:publicationType
Journal Article