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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1979-11-29
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pubmed:abstractText |
The bilirubin-binding ability of human alpha-fetoproteins, which were purified from fetal cord serum and from ascites fluid of a hepatoma-bearing patient, was examined by the difference spectrum and the Jacobsen peroxidase methods. The difference spectrum observed as a result of the specific binding of bilirubin to alpha-fetoprotein had a maximum at 482 nm, and this pattern was quite similar to that observed for serum albumin. The result obtained by the difference spectrum method showed that 1 mol of each alpha-fetoprotein bound 1 mol of bilirubin at pH 8.3 and that the dissociation constants of the complexes of bilirubin with fetal alpha-fetoprotein and hepatoma-derived alpha-fetoprotein were 2.6 x 10(-7) and 5.0 x 10(-7) M, respectively. The Jacobsen enzymatic method using horseradish peroxidase gave the same values for molar binding ratios and similar dissociation constants, 7.1 x 10(-7) M for fetal alpha-fetoprotein and 7.4 x 10(-7) M for hepatoma-derived alpha-fetoprotein. These results indicate that alpha-fetoprotein may function as a carrier protein for bilirubin as has been shown for serum albumin.
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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 |
Sep
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pubmed:issn |
0008-5472
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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 |
3571-4
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:89900-Bilirubin,
pubmed-meshheading:89900-Carcinoma, Hepatocellular,
pubmed-meshheading:89900-Carrier Proteins,
pubmed-meshheading:89900-Fetus,
pubmed-meshheading:89900-Humans,
pubmed-meshheading:89900-Hydrogen-Ion Concentration,
pubmed-meshheading:89900-Liver Neoplasms,
pubmed-meshheading:89900-alpha-Fetoproteins
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pubmed:year |
1979
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pubmed:articleTitle |
alpha-Fetoprotein as a carrier protein in plasma and its bilirubin-binding ability.
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pubmed:publicationType |
Journal Article
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