Linked Life Data

2716766

Source:http://linkedlifedata.com/resource/pubmed/id/2716766

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-6-16
pubmed:abstractText
Human lymphoblast mutants at the X-linked hprt locus have been examined by Southern blot, Northern blot and DNA sequence analysis. A previous study had shown that approximately a third of the spontaneously-arising mutants and half those induced by formaldehyde showed no alteration in restriction fragment pattern and thus were classified as point mutations. In this report, Northern blot analysis was used to show that these point mutants fall into 4 categories: normal size and amount of RNA, normal size but reduced amounts, reduced size of RNA or no RNA. Sequence analyses of cDNAs prepared from hprt mRNAs were performed on 1 spontaneous and 7 formaldehyde-induced mutants with normal Northern blots. The spontaneous mutant was caused by an AT----GC transition. 6 of the formaldehyde-induced mutants were base substitutions, all of which occurred at AT base-pairs. There was an apparent hot spot, in that 4/6 independent mutants were AT----CG transversions at one specific site. The remaining mutant had lost exon 8.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0027-5107
pubmed:author
pubmed:issnType
Print
pubmed:volume
226
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
31-7
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Formaldehyde-induced and spontaneous alterations in human hprt DNA sequence and mRNA expression.
pubmed:affiliation
Department of Cancer Biology, Harvard School of Public Health, Boston, MA 02115.
pubmed:publicationType
Journal Article