First time at Proteopedia? Click on the green links: they change the 3D image. Click and drag the molecules. Proteopedia is a 3D, interactive encyclopedia of proteins, RNA, DNA and other molecules. With a free user account, you can edit pages in Proteopedia. Visit the Main Page to learn more.
1pou
From Proteopedia
| 1pou, 20 NMR models () | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| |||||||||
| Resources: | FirstGlance, OCA, RCSB, PDBsum | ||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||
THE SOLUTION STRUCTURE OF THE OCT-1 POU-SPECIFIC DOMAIN REVEALS A STRIKING SIMILARITY TO THE BACTERIOPHAGE LAMBDA REPRESSOR DNA-BINDING DOMAIN
The POU-specific (POUs) domain, in association with a POU-type homeodomain, forms the bipartite DNA-binding POU domain. The solution structure of the Oct-1 POUs domain has been determined by multidimensional nuclear magnetic resonance spectroscopy and consists of four alpha helices surrounding a conserved hydrophobic core. The POUs domain is structurally similar to the DNA-binding domains of the bacteriophage lambda and 434 repressors and 434 Cro. These domains exhibit superimposable helix-turn-helix (HTH) motifs, except that in the POUs domain, the first helix and the linker to the second helix of the motif are extended. The conserved structural features have been used to propose a plausible model for DNA binding by the POUs domain. A human dwarfism mutation that affects positive control in the related POU domain protein Pit-1 maps to the same region of the HTH motif as do positive control mutations in lambda repressor.
The solution structure of the Oct-1 POU-specific domain reveals a striking similarity to the bacteriophage lambda repressor DNA-binding domain., Assa-Munt N, Mortishire-Smith RJ, Aurora R, Herr W, Wright PE, Cell. 1993 Apr 9;73(1):193-205. PMID:8462099
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1pou is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.
Reference
- Assa-Munt N, Mortishire-Smith RJ, Aurora R, Herr W, Wright PE. The solution structure of the Oct-1 POU-specific domain reveals a striking similarity to the bacteriophage lambda repressor DNA-binding domain. Cell. 1993 Apr 9;73(1):193-205. PMID:8462099
