1udi | pdb_00001udi

NUCLEOTIDE MIMICRY IN THE CRYSTAL STRUCTURE OF THE URACIL-DNA GLYCOSYLASE-URACIL GLYCOSYLASE INHIBITOR PROTEIN COMPLEX

spinqualitylabelsall models 1udi, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1udi is a 2 chain structure with sequence from Bacillus phage pbs1 and Viruses. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Activity: Uridine nucleosidase, with EC number 3.2.2.3 Resources: FirstGlance, OCA, RCSB, PDBsum Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The Bacillus subtilis bacteriophages PBS-1 and PBS-2 protect their uracil-containing DNA by expressing an inhibitor protein (UGI) which inactivates the host uracil-DNA glycosylase (UDGase) base-excision repair enzyme. Also, PBS1/2 UGI efficiently inactivates UDGases from other biological sources, including the enzyme from herpes simplex virus type-1 (HSV-1). The crystal structure of the HSV-1 UDGase-PBS1 UGI complex at 2.7 angstrum reveals an alpha-beta-alpha sandwich structure for UGI which interacts with conserved regions of UDGase involved in DNA binding, and directly mimics protein-DNA interactions observed in the UDGase-oligonucleotide complex. The inhibitor completely blocks access to the active site of UDGase, but makes no direct contact with the uracil-binding pocket itself. Nucleotide mimicry in the crystal structure of the uracil-DNA glycosylase-uracil glycosylase inhibitor protein complex.,Savva R, Pearl LH Nat Struct Biol. 1995 Sep;2(9):752-7. PMID:7552746 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also DNA glycosylase Uracil glycosylate inhibitor Uracil-DNA glycosylase Uracil-DNA glycosylase inhibitor

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