Crystallization of a new form of the eye lens protein beta B2-crystallin.

Abstract:

:A new crystal form of the bovine oligomeric lens protein beta B2 has been grown in the presence of calcium acetate. The crystals are orthorhombic, I222 or I2(1)2(1)2(1), with cell dimensions a = 77.8 A, b = 83.6 A, c = 109.2 A. This new crystal form, which diffracts to at least 2.5 A, has a and b cell dimensions that are half those of the original crystal form, although there is no simple relationship between the c cell dimensions. The new crystal form reported here contains only one subunit per asymmetric unit, indicating that the dimer lies on a crystallographic 2-fold axis, and is a suitable candidate for molecular replacement studies.

journal_name

J Mol Biol

authors

Bax B,Slingsby C

doi

10.1016/0022-2836(89)90162-9

subject

Has Abstract

pub_date

1989-08-20 00:00:00

pages

715-7

issue

4

eissn

0022-2836

issn

1089-8638

pii

0022-2836(89)90162-9

journal_volume

208

pub_type

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