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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1976-11-1
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pubmed:abstractText |
Aortas of 13-day-old chick embryo were labeled for 0.5 hr with [14C]lysine and subjected to a serial extraction after chase for 1-24 hr with [12C]lysine. Substantial radioactivity was found in insoluble elastin after 3 hr chase. The effect of beta-amino-propionitrile on labeling with [14C]lysine was also examined. Each fraction was hydrolyzed and applied to a short column on an amino acid analyzer. Radioactivity was found in desmosine and isodesmosine of insoluble elastin as early as 1 hr after the beginning of chase. The radioactivity increased rapidly at 2 hr and very slowly thereafter. A large count, which was separated into five peaks on a long column, was observed in other lysine derivatives at 2 hr and increased steadily up to 24 hr, while the lysine count decreased from 1 : 0.5 to 1 : 6 against lysine derivatives and from 1 : 0.04 to 1 : 0.9 against quarter-desmosine after 24 hr. The oxidation of lysine residues incorporated during the 0.5 hr pulse was almost completed during the first 1 hr of chase, and these oxidized residues were incorporated into crosslinks during the following 1 hr. It is suggested that poorly crosslinked elastin accumulated in the soluble fractions. The presence of crosslinking derived from lysine residues was also indicated in the microfibril fraction.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Elastin,
http://linkedlifedata.com/resource/pubmed/chemical/Lysine,
http://linkedlifedata.com/resource/pubmed/chemical/Macromolecular Substances,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Fragments
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0021-924X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
79
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1235-43
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pubmed:dateRevised |
2007-12-19
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pubmed:meshHeading |
pubmed-meshheading:986393-Amino Acids,
pubmed-meshheading:986393-Animals,
pubmed-meshheading:986393-Aorta,
pubmed-meshheading:986393-Binding Sites,
pubmed-meshheading:986393-Chick Embryo,
pubmed-meshheading:986393-Elastin,
pubmed-meshheading:986393-Lysine,
pubmed-meshheading:986393-Macromolecular Substances,
pubmed-meshheading:986393-Peptide Fragments,
pubmed-meshheading:986393-Protein Binding,
pubmed-meshheading:986393-Time Factors
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pubmed:year |
1976
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pubmed:articleTitle |
Synthesis of elastin. A rapid formation of lysine-derived crosslinks by chick embryo aorta.
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pubmed:publicationType |
Journal Article
|