Journal article
Correlation of pH-dependent resonance Raman and optical absorption data reflecting haem-apopprotein interaction in oxy haemoglobin
Journal of molecular structure, v 143(C), pp 457-460
1986
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Abstract
We have measured the pH-dependence of the depolarization ratio and the excitation profiles of two prominent Raman lines (1375 cm
−1, 1638 cm
−1) of oxyhaemoglobin in the resonant region between the Q- and B-absorption bands. From these data pK-values of pH-induced conformational changes of the protein, which by haem-apoprotein interaction also change the conformation of the prosthetic porphyrin, can be extracted. In comparison to these data we have investigated the pH-dependence of the extinction coefficients in the absorption maxima of the Q- and B-bands. Their behaviour can be explained by the same mechanism.
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Details
- Title
- Correlation of pH-dependent resonance Raman and optical absorption data reflecting haem-apopprotein interaction in oxy haemoglobin
- Creators
- D. Wedekind - University of BremenU. Brunzel - University of BremenR. Schweitzer-Stenner - University of BremenW. Dreybrodt - University of Bremen
- Publication Details
- Journal of molecular structure, v 143(C), pp 457-460
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:A1986C108700110
- Scopus ID
- 2-s2.0-0010689738
- Other Identifier
- 991019196418904721
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- Web of Science research areas
- Chemistry, Physical