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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0001625,
umls-concept:C0001675,
umls-concept:C0007382,
umls-concept:C0008377,
umls-concept:C0021853,
umls-concept:C0022646,
umls-concept:C0023884,
umls-concept:C0024432,
umls-concept:C0032214,
umls-concept:C0033684,
umls-concept:C0035820,
umls-concept:C0205164,
umls-concept:C0600138,
umls-concept:C0681814,
umls-concept:C1529304,
umls-concept:C1705535
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pubmed:issue |
8
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pubmed:dateCreated |
1998-11-16
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pubmed:abstractText |
The first acyl-coenzyme A:cholesterol acyltransferase (ACAT) cDNA cloned and expressed in 1993 is designated as ACAT-1. In various human tissue homogenates, ACAT-1 protein is effectively solubilized with retention of enzymatic activity by the detergent CHAPS along with high salt. After using anti-ACAT-1 antibodies to quantitatively remove ACAT-1 protein from the solubilized enzyme, measuring the residual ACAT activity remaining in the immunodepleted supernatants allows us to assess the functional significance of ACAT-1 protein in various human tissues. The results showed that ACAT activity was immunodepleted 90% in liver (83% in hepatocytes), 98% in adrenal gland, 91% in macrophages, 80% in kidney, and 19% in intestines, suggesting that ACAT-1 protein plays a major catalytic role in all of the human tissue/cell homogenates examined except intestines. Intestinal ACAT activity is largely resistant to immunodepletion and is much more sensitive to inhibition by the ACAT inhibitor Dup 128 than liver ACAT activity.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0022-2275
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
39
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1722-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9717734-Adolescent,
pubmed-meshheading:9717734-Adrenal Glands,
pubmed-meshheading:9717734-Adult,
pubmed-meshheading:9717734-Cholic Acids,
pubmed-meshheading:9717734-Detergents,
pubmed-meshheading:9717734-Humans,
pubmed-meshheading:9717734-Immunoblotting,
pubmed-meshheading:9717734-Intestines,
pubmed-meshheading:9717734-Kidney,
pubmed-meshheading:9717734-Liver,
pubmed-meshheading:9717734-Macrophages,
pubmed-meshheading:9717734-Middle Aged,
pubmed-meshheading:9717734-Solubility,
pubmed-meshheading:9717734-Sterol O-Acyltransferase,
pubmed-meshheading:9717734-Tissue Distribution
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pubmed:year |
1998
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pubmed:articleTitle |
Immunodepletion experiments suggest that acyl-coenzyme A:cholesterol acyltransferase-1 (ACAT-1) protein plays a major catalytic role in adult human liver, adrenal gland, macrophages, and kidney, but not in intestines.
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pubmed:affiliation |
Department of Biochemistry, Dartmouth Medical School, Hanover, NH 03755, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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