Structure-based redesign of corepressor specificity of the Escherichia coli purine repressor by substitution of residue 190.
Lu, F., Schumacher, M.A., Arvidson, D.N., Haldimann, A., Wanner, B.L., Zalkin, H., Brennan, R.G.(1998) Biochemistry 37: 971-982
- PubMed: 9454587 
- DOI: 10.1021/bi971942s
- Primary Citation of Related Structures:  
- PubMed Abstract: 
Guanine or hypoxanthine, physiological corepressors of the Escherichia coli purine repressor (PurR), promote formation of the ternary PurR-corepressor-operator DNA complex that functions to repress pur operon gene expression. Structure-based predicti ...