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. 1981 Apr 25;256(8):4079-80.

Crystallization and preliminary X-ray investigation of human erythrocytic purine nucleoside phosphorylase

W J Cook, S E Ealick, C E Bugg, J D Stoeckler, R E Parks Jr
  • PMID: 6783653
Free article

Crystallization and preliminary X-ray investigation of human erythrocytic purine nucleoside phosphorylase

W J Cook et al. J Biol Chem. .
Free article

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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