1dch
From Proteopedia
CRYSTAL STRUCTURE OF DCOH, A BIFUNCTIONAL, PROTEIN-BINDING TRANSCRIPTION COACTIVATOR
Overview
DCoH, the dimerization cofactor of hepatocyte nuclear factor-1, stimulates gene expression by associating with specific DNA binding proteins and also catalyzes the dehydration of the biopterin cofactor of phenylalanine hydroxylase. The x-ray crystal structure determined at 3 angstrom resolution reveals that DCoH forms a tetramer containing two saddle-shaped grooves that comprise likely macromolecule binding sites. Two equivalent enzyme active sites flank each saddle, suggesting that there is a spatial connection between the catalytic and binding activities. Structural similarities between the DCoH fold and nucleic acid-binding proteins argue that the saddle motif has evolved to bind diverse ligands or that DCoH unexpectedly may bind nucleic acids.
About this Structure
1DCH is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Crystal structure of DCoH, a bifunctional, protein-binding transcriptional coactivator., Endrizzi JA, Cronk JD, Wang W, Crabtree GR, Alber T, Science. 1995 Apr 28;268(5210):556-9. PMID:7725101 Page seeded by OCA on Fri May 2 13:41:24 2008
