pubmed-article:92026 | rdf:type | pubmed:Citation | lld:pubmed |
pubmed-article:92026 | lifeskim:mentions | umls-concept:C0205145 | lld:lifeskim |
pubmed-article:92026 | lifeskim:mentions | umls-concept:C0002198 | lld:lifeskim |
pubmed-article:92026 | lifeskim:mentions | umls-concept:C1880022 | lld:lifeskim |
pubmed-article:92026 | pubmed:issue | 9 | lld:pubmed |
pubmed-article:92026 | pubmed:dateCreated | 1980-1-24 | lld:pubmed |
pubmed-article:92026 | pubmed:abstractText | Methylamine reacts with the plasma protease inhibitor, alpha 2-macroglobulin, to form an irreversible, covalent modification. Quantitation of the reaction indicates 3.9 +/- (SD) 0.4 reactive sites per native tetrameric protein (Mr = 725,000) or one site per subunit. The reaction is selective and specific in that only 1 or 2 labeled peptides are observed on radioautography of peptide maps derived from [14C]methylamine-treated alpha 2-macroglobulin. A single chymotryptic peptide was isolated in 56% overall yield from the labeled protein. The peptide sequence by Edman degradation was found to be Gly-Cys-Gly-Glu-X-Asn-Met-(Val, Leu), in which X was the only radiolabeled phenylthiohydantoin derivative. Amino acid analysis and mass spectral analysis of the derivative suggests that X is gamma-glutamylmethylamide. Because glutamic acid and glutamine residues do not normally react with alkylamines, this work presents presumptive evidence for an alternative activated center in selected proteins. | lld:pubmed |
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pubmed-article:92026 | pubmed:language | eng | lld:pubmed |
pubmed-article:92026 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
pubmed-article:92026 | pubmed:citationSubset | IM | lld:pubmed |
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pubmed-article:92026 | pubmed:status | MEDLINE | lld:pubmed |
pubmed-article:92026 | pubmed:month | Sep | lld:pubmed |
pubmed-article:92026 | pubmed:issn | 0027-8424 | lld:pubmed |
pubmed-article:92026 | pubmed:author | pubmed-author:HowardJ BJB | lld:pubmed |
pubmed-article:92026 | pubmed:author | pubmed-author:SwensonR PRP | lld:pubmed |
pubmed-article:92026 | pubmed:issnType | Print | lld:pubmed |
pubmed-article:92026 | pubmed:volume | 76 | lld:pubmed |
pubmed-article:92026 | pubmed:owner | NLM | lld:pubmed |
pubmed-article:92026 | pubmed:authorsComplete | Y | lld:pubmed |
pubmed-article:92026 | pubmed:pagination | 4313-6 | lld:pubmed |
pubmed-article:92026 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
pubmed-article:92026 | pubmed:meshHeading | pubmed-meshheading:92026-Hu... | lld:pubmed |
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pubmed-article:92026 | pubmed:year | 1979 | lld:pubmed |
pubmed-article:92026 | pubmed:articleTitle | Characterization of alkylamine-sensitive site in alpha 2-macroglobulin. | lld:pubmed |
pubmed-article:92026 | pubmed:publicationType | Journal Article | lld:pubmed |
pubmed-article:92026 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
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