rdf:type |
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lifeskim:mentions |
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pubmed:issue |
13
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pubmed:dateCreated |
1993-6-4
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pubmed:databankReference |
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pubmed:abstractText |
Macrosialin is a heavily glycosylated transmembrane protein of 87-115 kDa, highly and specifically expressed by mouse tissue macrophages, and to a lesser extent by dendritic cells. We have isolated cDNA clones encoding macrosialin from a thioglycollate-elicited peritoneal macrophage cDNA library by transient expression in COS cells and panning with the anti-macrosialin monoclonal antibody FA/11. A single 1.3-kilobase macrosialin transcript was detected in both untreated and phorbol 12-myristate 13-acetate-stimulated RAW cells. The cDNA sequence predicts a type I integral membrane protein of 326 residues with a heavily glycosylated extracellular domain of 306 residues containing nine potential N-linked glycosylation sites and numerous potential O-linked glycosylation sites. The extracellular domain consists of two distinct regions, separated by an extended 12 residue proline-rich hinge; a membrane-distal mucin-like domain of 89 residues containing short peptide repeats and consisting of 44% serine and threonine residues; and a membrane proximal domain of 170 residues, which has significant sequence homology to a family of lysosomal associated glycoproteins known as the lamp-1 group. Macrosialin is the murine homologue of the human macrophage glycoprotein CD68 (72% identity, 80% similarity). Both proteins are preferentially expressed by macrophages and share the same bipartite structure having a mucin-like domain and a domain common to the lamp family. Macrosialin and CD68 are the first examples of a lamp family protein with a restricted cell-type-specific expression. They may have evolved from the lamps to carry out specialized functions in dedicated phagocytic cells.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, CD,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Differentiation...,
http://linkedlifedata.com/resource/pubmed/chemical/CD68 antigen, human,
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/Lysosome-Associated Membrane...,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Glycoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Oligodeoxyribonucleotides,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Tetradecanoylphorbol Acetate
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0021-9258
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
268
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9661-6
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pubmed:dateRevised |
2009-9-29
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pubmed:meshHeading |
pubmed-meshheading:8486654-Amino Acid Sequence,
pubmed-meshheading:8486654-Animals,
pubmed-meshheading:8486654-Antigens, CD,
pubmed-meshheading:8486654-Antigens, Differentiation, Myelomonocytic,
pubmed-meshheading:8486654-Base Sequence,
pubmed-meshheading:8486654-Blotting, Northern,
pubmed-meshheading:8486654-Cell Line,
pubmed-meshheading:8486654-Cells, Cultured,
pubmed-meshheading:8486654-Cloning, Molecular,
pubmed-meshheading:8486654-DNA,
pubmed-meshheading:8486654-Gene Library,
pubmed-meshheading:8486654-Humans,
pubmed-meshheading:8486654-Lysosome-Associated Membrane Glycoproteins,
pubmed-meshheading:8486654-Macrophages,
pubmed-meshheading:8486654-Membrane Glycoproteins,
pubmed-meshheading:8486654-Mice,
pubmed-meshheading:8486654-Mice, Inbred BALB C,
pubmed-meshheading:8486654-Molecular Sequence Data,
pubmed-meshheading:8486654-Oligodeoxyribonucleotides,
pubmed-meshheading:8486654-Plasmids,
pubmed-meshheading:8486654-Polymerase Chain Reaction,
pubmed-meshheading:8486654-Protein Conformation,
pubmed-meshheading:8486654-RNA, Messenger,
pubmed-meshheading:8486654-Rats,
pubmed-meshheading:8486654-Sequence Homology, Amino Acid,
pubmed-meshheading:8486654-Tetradecanoylphorbol Acetate,
pubmed-meshheading:8486654-Transfection
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pubmed:year |
1993
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pubmed:articleTitle |
Macrosialin, a mouse macrophage-restricted glycoprotein, is a member of the lamp/lgp family.
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pubmed:affiliation |
Cell Adhesion Laboratory, Imperial Cancer Research Fund, John Radcliffe Hospital, Headington, Oxford, United Kingdom.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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