Crystallization and preliminary X-ray investigation of human erythrocytic purine nucleoside phosphorylase
- PMID: 6783653
Crystallization and preliminary X-ray investigation of human erythrocytic purine nucleoside phosphorylase
Abstract
Crystals of human erythrocytic purine nucleoside phosphorylase have been grown from solutions of ammonium sulfate. The crystals are trigonal, space group R32; the hexagonal axes are a = 143.8(2) and c = 165.1(2) A. The crystals are moderately stable to x-rays and diffract beyond 3.0 A resolution. The experimental density of the crystals indicates that the molecular weight of the protein is 94,000. The three subunits are not related by crystallographic symmetry.
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