Linked Life Data

10607429

Source:http://linkedlifedata.com/resource/pubmed/id/10607429

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2000-1-18
pubmed:abstractText
A glycophosphatidylinositol (GPI)-linked differentiation antigen expressed on guinea pig T and B lymphocytes was identified by several monoclonal antibodies; it has been shown previously that this membrane protein induced strong polyclonal T cell proliferation upon antibody binding and costimulation by PMA. Purification by immunoadsorption and microsequencing revealed that this T-cell-activating protein is the homologue of Thy-1 or CD90. In contrast to the Thy-1 antigen of most other species, guinea pig Thy-1 has a much higher molecular weight, which is due to a more extensive N-linked glycosylation, bringing the molecular weight of the total antigen up to 36 kDa. Molecular cloning of guinea pig Thy-1 indicated that the deduced molecular weight of the protein backbone is 12,777 after removal of an N-terminal 19-amino-acid leader peptide and cleavage of the 31 amino acids for GPI anchoring the C-terminal end. Sequence comparison showed that guinea pig Thy-1 has an 82% homology to human and a 72% homology to mouse Thy-1 on the amino acid level. Immunohistological staining of cryostat sections revealed intensive staining with the monoclonal antibody H154 on fibroblasts, fibrocytes, Kupffer cells, alveolar macrophages, and mesangial cells. As observed in the human, mouse, and rat, Thy-1 is abundant in the guinea pig brain. Unlike Thy-1 expression in other species, guinea pig Thy-1 is strongly expressed on most resting, nonactivated B cells and, to a lesser extent, on erythrocytes. While treatment of erythrocytes and lymphocytes with GPI-specific phospholipase C largely decreased reactivity with mAb H154, T cells retained the proliferative response to antibody and phorbol esters.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0008-8749
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
197
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
116-28
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:10607429-Amino Acid Sequence, pubmed-meshheading:10607429-Animals, pubmed-meshheading:10607429-Antibodies, Monoclonal, pubmed-meshheading:10607429-Antigens, Thy-1, pubmed-meshheading:10607429-B-Lymphocytes, pubmed-meshheading:10607429-Blotting, Western, pubmed-meshheading:10607429-Cell Line, pubmed-meshheading:10607429-Cloning, Molecular, pubmed-meshheading:10607429-Culture Media, pubmed-meshheading:10607429-DNA, Complementary, pubmed-meshheading:10607429-Erythrocytes, pubmed-meshheading:10607429-Glycosylation, pubmed-meshheading:10607429-Guinea Pigs, pubmed-meshheading:10607429-Humans, pubmed-meshheading:10607429-Leukocytes, Mononuclear, pubmed-meshheading:10607429-Lymphocyte Activation, pubmed-meshheading:10607429-Mice, pubmed-meshheading:10607429-Molecular Sequence Data, pubmed-meshheading:10607429-Phagocytes, pubmed-meshheading:10607429-Phosphatidylinositol Diacylglycerol-Lyase, pubmed-meshheading:10607429-Phosphatidylinositols, pubmed-meshheading:10607429-Pronase, pubmed-meshheading:10607429-Rats, pubmed-meshheading:10607429-Sequence Homology, Amino Acid, pubmed-meshheading:10607429-Staining and Labeling, pubmed-meshheading:10607429-T-Lymphocytes, pubmed-meshheading:10607429-Transfection, pubmed-meshheading:10607429-Type C Phospholipases
pubmed:year
1999
pubmed:articleTitle
T-cell-activating monoclonal antibodies, reacting with both leukocytes and erythrocytes, recognize the guinea pig Thy-1 differentiation antigen: characterization and cloning of guinea pig CD90.
pubmed:affiliation
Department of Immunology, Robert Koch-Institute, Berlin, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't