Source:http://linkedlifedata.com/resource/pubmed/id/17516096
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2007-7-27
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pubmed:abstractText |
The conditional stability constant at pH 7.4 for Cu(II) binding at the N-terminal site (NTS) of human serum albumin (HSA) was determined directly by competitive UV-vis spectroscopy titrations using nitrilotriacetic acid (NTA) as the competitor in 100 mM NaCl and 100 mM N-(2-hydroxyethyl)piperazine-N'-ethanesulfonic acid (Hepes). The log Kc (NTS) value of 12.0 +/- 0.1 was determined for HSA dissolved in 100 mM NaCl. A false log log Kc (NTS) (c) value of 11.4 +/- 0.1 was obtained in the 100 mM Hepes buffer, owing to the formation of a ternary Cu(NTA)(Hepes) complex. The impact of the picomolar affinity of HSA for Cu(II) on the availability of these ions in neurodegenerative disorders is briefly discussed.
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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 |
Aug
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pubmed:issn |
0949-8257
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
913-8
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pubmed:meshHeading |
pubmed-meshheading:17516096-Binding, Competitive,
pubmed-meshheading:17516096-Copper,
pubmed-meshheading:17516096-Humans,
pubmed-meshheading:17516096-Neurodegenerative Diseases,
pubmed-meshheading:17516096-Protein Binding,
pubmed-meshheading:17516096-Serum Albumin,
pubmed-meshheading:17516096-Titrimetry
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pubmed:year |
2007
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pubmed:articleTitle |
Human serum albumin coordinates Cu(II) at its N-terminal binding site with 1 pM affinity.
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pubmed:affiliation |
Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawi?skiego 5a, 02-106 Warsaw, Poland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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