1udh

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Image:1udh.gif

1udh, resolution 1.75Å

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THE STRUCTURAL BASIS OF SPECIFIC BASE EXCISION REPAIR BY URACIL-DNA GLYCOSYLASE

Overview

The 1.75-A crystal structure of the uracil-DNA glycosylase from herpes simplex virus type-1 reveals a new fold, distantly related to dinucleotide-binding proteins. Complexes with a trideoxynucleotide, and with uracil, define the DNA-binding site and allow a detailed understanding of the exquisitely specific recognition of uracil in DNA. The overall structure suggests binding models for elongated single- and double-stranded DNA substrates. Conserved residues close to the uracil-binding site suggest a catalytic mechanism for hydrolytic base excision.

About this Structure

1UDH is a Single protein structure of sequence from Human herpesvirus 4 with and as ligands. Active as Uridine nucleosidase, with EC number 3.2.2.3 Full crystallographic information is available from OCA.

Reference

The structural basis of specific base-excision repair by uracil-DNA glycosylase., Savva R, McAuley-Hecht K, Brown T, Pearl L, Nature. 1995 Feb 9;373(6514):487-93. PMID:7845459

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