Crystallization and preliminary X-ray analysis of porin from Rhodobacter capsulatus.

U Nestel, T Wacker, D Woitzik, J Weckesser, W Kreutz, W Welte
Author Information
  1. U Nestel: Institut für Biophysik und Strahlenbiologie der Albert-Ludwigs-Universität, Freiburg i.Br., FRG.

Abstract

Porin monomers of the phototrophic bacterium Rhodobacter capsulatus were purified. Crystals were obtained from a solution of porin solubilized with the detergent octyltetraoxyethylene within 5 days using the vapor phase equilibration technique. The crystals were rhombohedral with an edge length of 0.4 mm. The space group was trigonal R3 with unit cell constants of a = b = 95 A, c = 147 A. Reflexions were observed to 3.2 A.

MeSH Term

Bacterial Outer Membrane Proteins
Crystallography
Gram-Negative Bacteria
Molecular Weight
Porins
Protein Conformation
X-Ray Diffraction

Chemicals

Bacterial Outer Membrane Proteins
Porins

Word Cloud

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