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1dc0
From Proteopedia
CRYSTAL STRUCTURE OF AN A/B-DNA INTERMEDIATE CATGGGCCCATG
Overview
The DNA dodecamer CATGGGCCCATG in a crystal structure of resolution 1.3 A has a conformation intermediate between A and B DNA. This trapping of a stable intermediate suggests that the A and B DNA families are not discrete, as previously believed. The structure supports a base-centered rather than a backbone-centered mechanism for the A <--> B transition mediated by guanine tracts. Interconversion between A and B DNA provides another means for regulating protein-DNA recognition.
About this Structure
Full crystallographic information is available from OCA.
Reference
The structure of a stable intermediate in the A <--> B DNA helix transition., Ng HL, Kopka ML, Dickerson RE, Proc Natl Acad Sci U S A. 2000 Feb 29;97(5):2035-9. PMID:10688897 Page seeded by OCA on Fri May 2 13:40:25 2008
Categories: Dickerson, R E. | Kopka, M L. | Ng, H. L. | A-dna | B-dna | Intermediate
