Skip to main navigation Skip to search Skip to main content

Preliminary X-ray characterization of the ribonuclease P (C5 protein) from Escherichia coli: Expression, crystallization and cryoconditions

  • Hui Woog Choe*
  • , Dae Gwin Jeong
  • , Jung Hee Park
  • , Ramona Schlesinger
  • , Jörg Labahn
  • , Klaus Peter Hofmann
  • , Georg Büldt
  • *Corresponding author for this work
  • Jeonbuk National University
  • Humboldt University of Berlin
  • Inst. Biol. Informationsverarbeitung

Research output: Contribution to journalJournal articlepeer-review

Abstract

The gene for Escherichia coli ribonuclease P (RNase P) protein (also known as C5 protein) and its mutant C5-C113A have been expressed as GST fusion proteins in E. coli at a high level. After cleavage of the fusion protein, highly purified functional C5 protein is obtained that can be crystallized with 2.5-2.6 M (NH4)2HPO4/(NH4)H2PO 4 pH 7.0 at room temperature. These crystals are suitable for X-ray analysis, belong to the space group P3121 or P3221 (unit-cell parameters a = b = 66.67, c = 142.09 Å) and diffract to 2.9 Å at 100 K using sorbitol and glycerol as cryoprotectants. For three molecules in the asymmetric unit a VM of 2.17 Å3 Da-1 was calculated.

Original languageEnglish
Pages (from-to)350-352
Number of pages3
JournalActa Crystallographica - Section D Biological Crystallography
Volume59
Issue number2
DOIs
StatePublished - 2003.02.1

Quacquarelli Symonds(QS) Subject Topics

  • Biological Sciences

Fingerprint

Dive into the research topics of 'Preliminary X-ray characterization of the ribonuclease P (C5 protein) from Escherichia coli: Expression, crystallization and cryoconditions'. Together they form a unique fingerprint.

Cite this