1oct

CRYSTAL STRUCTURE OF THE OCT-1 POU DOMAIN BOUND TO AN OCTAMER SITE: DNA RECOGNITION WITH TETHERED DNA-BINDING MODULESCRYSTAL STRUCTURE OF THE OCT-1 POU DOMAIN BOUND TO AN OCTAMER SITE: DNA RECOGNITION WITH TETHERED DNA-BINDING MODULES

Structural highlights 1oct is a 3 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [PO2F1_HUMAN] Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3') and activates the promoters of the genes for some small nuclear RNAs (snRNA) and of genes such as those for histone H2B and immunoglobulins. Modulates transcription transactivation by NR3C1, AR and PGR (By similarity). In case of human herpes simplex virus (HSV) infection, POU2F1 forms a multiprotein-DNA complex with the viral transactivator protein VP16 and HCFC1 thereby enabling the transcription of the viral immediate early genes. 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 structure of an Oct-1 POU domain-octamer DNA complex has been solved at 3.0 A resolution. The POU-specific domain contacts the 5' half of this site (ATGCAAAT), and as predicted from nuclear magnetic resonance studies, the structure, docking, and contacts are remarkably similar to those of the lambda and 434 repressors. The POU homeodomain contacts the 3' half of this site (ATGCAAAT), and the docking is similar to that of the engrailed, MAT alpha 2, and Antennapedia homeodomains. The linker region is not visible and there are no protein-protein contacts between the domains, but overlapping phosphate contacts near the center of the octamer site may favor cooperative binding. This novel arrangement raises important questions about cooperativity in protein-DNA recognition. Crystal structure of the Oct-1 POU domain bound to an octamer site: DNA recognition with tethered DNA-binding modules.,Klemm JD, Rould MA, Aurora R, Herr W, Pabo CO Cell. 1994 Apr 8;77(1):21-32. PMID:8156594 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Intrinsically Disordered Protein

spinqualitylabelsall models 1oct, resolution 3.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image