Escherichia coli biotin holoenzyme synthetase/bio repressor crystal structure delineates the biotin- and DNA-binding domains.
Wilson, K.P., Shewchuk, L.M., Brennan, R.G., Otsuka, A.J., Matthews, B.W.(1992) Proc Natl Acad Sci U S A 89: 9257-9261
- PubMed: 1409631 
- DOI: 10.1073/pnas.89.19.9257
- Primary Citation of Related Structures:  
1BIA, 1BIB - PubMed Abstract: 
The three-dimensional structure of BirA, the repressor of the Escherichia coli biotin biosynthetic operon, has been determined by x-ray crystallography and refined to a crystallographic residual of 19.0% at 2.3-A resolution. BirA is a sequence-specific DNA-binding protein that also catalyzes the formation of biotinyl-5'-adenylate from biotin and ATP and transfers the biotin moiety to other proteins ...