Caught bending the a-rule: crystal structures of translesion DNA synthesis with a non-natural nucleotide.
Zahn, K.E., Belrhali, H., Wallace, S.S., Doublie, S.(2007) Biochemistry 46: 10551-10561
- PubMed: 17718515 
- DOI: https://doi.org/10.1021/bi7008807
- Primary Citation of Related Structures:  
2OYQ, 2OZM, 2OZS, 2P5G - PubMed Abstract: 
Damage to DNA involving excision of the nucleobase at the N-glycosidic bond forms abasic sites. If a nucleotide becomes incorporated opposite an unrepaired abasic site during DNA synthesis, most B family polymerases obey the A-rule and preferentially incorporate dAMP without instruction from the template ...