1rnh
From Proteopedia
STRUCTURE OF RIBONUCLEASE H PHASED AT 2 ANGSTROMS RESOLUTION BY MAD ANALYSIS OF THE SELENOMETHIONYL PROTEIN
Overview
Ribonuclease H digests the RNA strand of duplex RNA.DNA hybrids into oligonucleotides. This activity is indispensable for retroviral infection and is involved in bacterial replication. The ribonuclease H from Escherichia coli is homologous with the retroviral proteins. The crystal structure of the E. coli enzyme reveals a distinctive alpha-beta tertiary fold. Analysis of the molecular model implicates a carboxyl triad in the catalytic mechanism and suggests a likely mode for the binding of RNA.DNA substrates. The structure was determined by the method of multiwavelength anomalous diffraction (MAD) with the use of synchrotron data from a crystal of the recombinant selenomethionyl protein.
About this Structure
1RNH is a Single protein structure. Full crystallographic information is available from OCA.
Reference
Structure of ribonuclease H phased at 2 A resolution by MAD analysis of the selenomethionyl protein., Yang W, Hendrickson WA, Crouch RJ, Satow Y, Science. 1990 Sep 21;249(4975):1398-405. PMID:2169648 Page seeded by OCA on Sat May 3 07:42:03 2008
