Optical Rotatory Properties of Cupric Ion Complexes of Simple Dipeptides
نویسندگان
چکیده
منابع مشابه
Optical rotatory properties of cupric ion complexes of simple dipeptides.
Titrations and spectral measurements of sperm whale metmyoglobin (2) and apomyoglobin (3) in the presence of cupric ion indicate that the metal ion may form chelates with imidazole groups and some other proton-bearing groups such as peptide amides. The titration and spectral properties of complexes of certain histidine-containing peptides have proved to be similar to those of the protein (4). A...
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15 صفحه اولCupric ion complexes of histidine-containing peptides.
The binding of cupric or zinc ion by sperm whale metmyoglobin appears to involve imidazole groups of histidyl residues (4, 5) that occur well removed from the NH2 terminus (6). The binding of each cupric ion by metmyoglobin is accompanied on the average by the displacement of one or more protons beyond that that may be borne by the imidazole group, presumably from peptide amide nitrogen atoms (...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1965
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)97117-6