Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-4-29
pubmed:databankReference
pubmed:abstractText
To determine the occurrence of conserved domains of presumed functional selection, a genomic restriction analysis was carried out in the region surrounding a transcription start point (tsp) from the rRNA cistron in T. cruzi. The transcribed spacer was found highly conserved among several isolates, whereas at 146 bp upstream from the tsp a highly polymorphic pattern was evidenced with a probe that contains sequences of a repetitive element (172 bp). Both genomic and chromosomal hybridizations indicated the linkage of the repetitive element to coding regions of the rRNA cistron. This represents the first example of a repetitive element not interspersed throughout the genome of T. cruzi, and strongly suggests that a functional role is being selected.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0001-706X
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-70
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Trypanosoma cruzi rRNA genes: a repeated element from the non-transcribed spacer is locus specific.
pubmed:affiliation
Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México D.F., México.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't