Purification, crystallization and preliminary X-ray diffraction data of L7Ae sRNP core protein from Pyrococcus abyssii

Acta Crystallogr D Biol Crystallogr. 2004 Jan;60(Pt 1):122-4. doi: 10.1107/s090744490302239x. Epub 2003 Dec 18.

Abstract

The L7Ae sRNP core protein from Pyrococcus abyssii was crystallized using the sitting-drop vapour-diffusion method. Crystals were obtained in the presence of MgCl(2), PEG 2000 MME and acetate buffer at pH 4.0. A native data set has been collected at 2.9 A resolution using a rotating-anode generator at room temperature. Crystals belong to the orthorhombic space group P2(1)2(1)2, with unit-cell parameters a = 70.7, b = 112.9, c = 34.8 A. There are two monomers of MW 14 200 Da per asymmetric unit and the packing density V(M) is 2.45 A(3) Da(-1). A molecular-replacement analysis gave solutions for the rotation and translation functions.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Archaeal Proteins / chemistry*
  • Archaeal Proteins / genetics
  • Archaeal Proteins / isolation & purification
  • Crystallization
  • Crystallography, X-Ray
  • DNA, Archaeal / chemistry
  • DNA, Archaeal / genetics
  • Escherichia coli / genetics
  • Polymerase Chain Reaction
  • Pyrococcus / chemistry*
  • Pyrococcus / genetics
  • Pyrococcus / metabolism
  • Recombinant Proteins / chemistry
  • Recombinant Proteins / genetics
  • Ribonucleoproteins / chemistry*
  • Ribonucleoproteins / genetics
  • Ribonucleoproteins / isolation & purification

Substances

  • Archaeal Proteins
  • DNA, Archaeal
  • Recombinant Proteins
  • Ribonucleoproteins