Porphyrin dynamics in the heme-pockets o
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C.A. Royer; B. Alpert
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Article
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1987
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Elsevier Science
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English
β 637 KB
Fluorescence polarization measurements of protoporphyrin embedded in the heme-pockets of myoglobin and hemoglobin reveal three different rotational regimes of the porphyrin which are temperature-dependent. At very low temperatures, porphyrin motions in the cavity depend upon the viscosity of the ext