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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1978-11-18
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pubmed:abstractText |
The electronic properties of 2:1 sulfhydryl- and imidazole-containing peptide-Co(II) complexes have been investigated and compared with those of Co(II)-substituted "blue" copper proteins. The Co(II) complexes of N-mercaptoacetyl-L-histidine and 3-mercaptopropionyl-L-histidine gave the ligand field parameters of deltat = 4110 and B = 756 cm(-1), and of deltat = 4120 and B = 724 cm(-1), respectively. These values correspond well to those (deltat = 4900 and B = 730 cm(-1)) of Co(II)-substituted "blue" copper proteins. The energy differences between S leads to M(II) charge transfer bands of Co(II)-Cu(II) couples were about 14,000 cm(-1) in both the proteins and the model complexes. The spectral results suggest that "blue" copper site has a pseudotetrahedral geometry and a deep absorption near 600 nm atributes to S leads to Cu(II) charge transfer.
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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/Cobalt,
http://linkedlifedata.com/resource/pubmed/chemical/Copper,
http://linkedlifedata.com/resource/pubmed/chemical/Imidazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Metalloproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Peptides,
http://linkedlifedata.com/resource/pubmed/chemical/Sulfhydryl Compounds
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pubmed:status |
MEDLINE
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pubmed:issn |
0006-3061
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
453-60
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:687672-Cobalt,
pubmed-meshheading:687672-Copper,
pubmed-meshheading:687672-Imidazoles,
pubmed-meshheading:687672-Metalloproteins,
pubmed-meshheading:687672-Peptides,
pubmed-meshheading:687672-Spectrophotometry,
pubmed-meshheading:687672-Structure-Activity Relationship,
pubmed-meshheading:687672-Sulfhydryl Compounds
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pubmed:year |
1978
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pubmed:articleTitle |
Electronic properties of sulfhydryl- and imidazole-containing peptide-cobalt(II) complexes: their relationship to cobalt(II)-substituted "blue" copper proteins.
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pubmed:publicationType |
Journal Article
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