The effects of conformational rearrangements on dioxygen binding to molluscan haemocyanins have been investigated by small-angle X-ray scattering (SAXS), The SAXS patterns of the oxygenated and deoxygenated forms of Octopus vulgaris haemocyanin are significantly different; whereas the patterns of the two forms of Rapana thomasiana haemocyanin are almost superimposable. A program has been developed, based on the differences in molecular dimensions, in order to simulate the effects observed in the investigation.
Functional SAXS study of haemocyanin dioxygen-carrier protein
BELTRAMINI, MARIANO;
1996
Abstract
The effects of conformational rearrangements on dioxygen binding to molluscan haemocyanins have been investigated by small-angle X-ray scattering (SAXS), The SAXS patterns of the oxygenated and deoxygenated forms of Octopus vulgaris haemocyanin are significantly different; whereas the patterns of the two forms of Rapana thomasiana haemocyanin are almost superimposable. A program has been developed, based on the differences in molecular dimensions, in order to simulate the effects observed in the investigation.
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