Crystal structures of ribonuclease HI active site mutants from Escherichia coli.
Katayanagi, K., Ishikawa, M., Okumura, M., Ariyoshi, M., Kanaya, S., Kawano, Y., Suzuki, M., Tanaka, I., Morikawa, K.(1993) J Biol Chem 268: 22092-22099
- PubMed: 8408067 
- Primary Citation of Related Structures:  
1RDA, 1RDB, 1RDC - PubMed Abstract: 
In order to investigate the relationships between the three-dimensional structure and the enzymic activity of E. coli RNase HI, three mutant proteins, which were completely inactivated by the replacements of three functional residues, Asp10 by Asn (D10N), Glu48 by Gln (E48Q), and Asp70 by Asn (D70N), were crystallized ...