Abstract:
:Cathepsin D was purified from bovine liver by a method using two pepstatin A affinity columns. The eluted protein was combined with pepstatin A and the complex crystallized from 15% polyethylene glycol 8000 at pH 5.9. The crystals diffract to a resolution of 3.0 A and have space group P2(1)2(1)2(1) with unit cell dimensions a = 74.8 A, b = 76.0 A, c = 157.7 A. There are two molecules in the asymmetric unit. The structure was solved by molecular replacement using a pepsin search model and both molecules showed clearly interpretable density in the position expected for pepstatin A in a preliminary difference map. The refined model has r.m.s. deviations from ideal bond lengths and angles of 0.014 A and 3.2 degrees, respectively, and a crystallographic R factor of 17%.
journal_name
J Mol Bioljournal_title
Journal of molecular biologyauthors
Bieber F,Brachvogel V,Arni R,Fusek M,Metcalf Pdoi
10.1016/0022-2836(92)90539-vkeywords:
subject
Has Abstractpub_date
1992-10-20 00:00:00pages
1265-8issue
4eissn
0022-2836issn
1089-8638pii
0022-2836(92)90539-Vjournal_volume
227pub_type
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