Specific recognition of RNA/DNA hybrid and enhancement of human RNase H1 activity by HBD.
Nowotny, M., Cerritelli, S.M., Ghirlando, R., Gaidamakov, S.A., Crouch, R.J., Yang, W.(2008) EMBO J 27: 1172-1181
- PubMed: 18337749 
- DOI: 10.1038/emboj.2008.44
- Primary Citation of Related Structures:  
3BSU - PubMed Abstract: 
Human RNase H1 contains an N-terminal domain known as dsRHbd for binding both dsRNA and RNA/DNA hybrid. We find that dsRHbd binds preferentially to RNA/DNA hybrids by over 25-fold and rename it as hybrid binding domain (HBD). The crystal structure of HBD complexed with a 12 bp RNA/DNA hybrid reveals that the RNA strand is recognized by a protein loop, which forms hydrogen bonds with the 2'-OH groups ...