Functional SAXS study of haemocyanin dioxygen-carrier protein

被引:4
作者
Beltramini, M
Borghi, E
DiMuro, P
LaMonaca, A
Salvato, B
Santini, C
机构
[1] UNIV PADUA,DIPARTIMENTO BIOL,I-35100 PADUA,ITALY
[2] CNR,CTR BIOCHIM & FISIOL MET PROT,I-35100 PADUA,ITALY
[3] UNIV ROMA LA SAPIENZA,DIPARTIMENTO CHIM,I-00185 ROME,ITALY
[4] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY
关键词
small angle X-ray scattering; haemocyanins; conformational rearrangement;
D O I
10.1016/S0022-2860(96)09292-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:237 / 240
页数:4
相关论文
共 3 条
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BELTRAMINI, M ;
BORGHI, E ;
DIMURO, P ;
MAGALDI, AG ;
LAMONACA, A ;
SALVATO, B ;
SANTINI, C ;
TOGNON, G .
JOURNAL DE PHYSIQUE IV, 1993, 3 (C8) :249-252
[2]  
Preaux G., 1984, COPPER PROTEINS COPP, VII, P159
[3]  
SALVATO B, 1990, LIFE CHEM REPORTS, V8, P1