Linked Life Data

1249420

Source:http://linkedlifedata.com/resource/pubmed/id/1249420

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1976-4-15
pubmed:abstractText
Terminal deoxynucleotidyl transferase (TdT), a unique DNA-polymerizing enzyme,has been shown to be present in a moderately dense subpopulation of rat thymocytes separated on discontinuous Ficoll density gradients. This subpopulation has been characterized by using antigenic and functional markers to identify directly and quantify cortical and medullary thymocytes. The TdT-positive thymocytes are depleted by cortisone administration, lack responsiveness to phytohemagglutinin, concanavalin-A, and histocompatibility alloantigens, bear surface antigens characteristic of cortical thymocytes (bone marrow lymphocyte antigen) and lack surface antigens characteristic of medullary thymocytes (rat-masked thymocyte antigen and histocompatibility antigens). The results indicate that TdT is present exclusively (or in markedly higher concentrations) in a subset of cells which comprised about 65% of cortical thymocytes. Two other major subsets of cortical thymocytes were identified which appeared to be TdT-negative. A minor subset of very low density cortical thymocytes was also defined. These observations have provided insight into the possible pathways of thymocyte ontogeny.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:volume
116
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
462-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1976
pubmed:articleTitle
The distribution of terminal deoxynucleotidyl transferase (TdT) among subsets of thymocytes in the rat.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.