Apocrustacyanin A1 from the lobster carotenoprotein α-crustacyanin:: crystallization and initial X-ray analysis involving softer X-rays

被引:19
作者
Chayen, NE
Cianci, M
Olczak, A
Raftery, J
Rizkallah, PJ
Zagalsky, PF
Helliwell, JR
机构
[1] Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England
[2] Imperial Coll Sch Med, Div Biomed Sci, Biol Struct & Funct Sect, London SW7 2AZ, England
[3] SERC, Daresbury Lab, CLRC, Warrington WA4 4AD, Cheshire, England
[4] Univ London, Royal Holloway & Bedford New Coll, Dept Biochem, Egham TW20 0EX, Surrey, England
来源
ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY | 2000年 / 56卷
关键词
D O I
10.1107/S0907444900008556
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
The A1 subunit of the carotenoprotein alpha-crustacyanin, isolated from lobster carapace, has been crystallized using the vapour-diffusion method. The crystals, grown in solutions of ammonium sulfate containing methylpentanediol (MPD), diffracted to 2.0 Angstrom. The crystals are stable to radiation. The space group of the crystals is P2(1)2(1)2(1). The unit-cell parameters are a = 41.9, b = 80.7, c = 110.8 Angstrom. 'Standard structure determination' has been unsuccessful within this crustacyanin family. Instead, an approach based on the S atoms is being undertaken involving softer X-rays at the SRS, Daresbury.
引用
收藏
页码:1064 / 1066
页数:3
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