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| | ==HNF-1ALPHA DIMERIZATION DOMAIN, WITH SELENOMETHIONINE SUBSTITUED AT LEU 12== | | ==HNF-1ALPHA DIMERIZATION DOMAIN, WITH SELENOMETHIONINE SUBSTITUED AT LEU 12== |
| - | <StructureSection load='1g2y' size='340' side='right' caption='[[1g2y]], [[Resolution|resolution]] 1.00Å' scene=''> | + | <StructureSection load='1g2y' size='340' side='right'caption='[[1g2y]], [[Resolution|resolution]] 1.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1g2y]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G2Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1G2Y FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1g2y]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1G2Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1G2Y FirstGlance]. <br> |
| - | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1f93|1f93]], [[1g2z|1g2z]], [[1g39|1g39]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1g2y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g2y OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1g2y RCSB], [http://www.ebi.ac.uk/pdbsum/1g2y PDBsum]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1g2y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1g2y OCA], [https://pdbe.org/1g2y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1g2y RCSB], [https://www.ebi.ac.uk/pdbsum/1g2y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1g2y ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/HNF1A_MOUSE HNF1A_MOUSE]] Transcriptional activator that regulates the tissue specific expression of multiple genes, especially in pancreatic islet cells and in liver. Required for the expression of several liver specific genes. Binds to the inverted palindrome 5'-GTTAATNATTAAC-3'.<ref>PMID:19289501</ref> <ref>PMID:10966642</ref> | + | [https://www.uniprot.org/uniprot/HNF1A_MOUSE HNF1A_MOUSE] Transcriptional activator that regulates the tissue specific expression of multiple genes, especially in pancreatic islet cells and in liver. Required for the expression of several liver specific genes. Binds to the inverted palindrome 5'-GTTAATNATTAAC-3'.<ref>PMID:19289501</ref> <ref>PMID:10966642</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| | </div> | | </div> |
| | + | <div class="pdbe-citations 1g2y" style="background-color:#fffaf0;"></div> |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Alber, T]] | + | [[Category: Large Structures]] |
| - | [[Category: Cronk, J D]] | + | [[Category: Mus musculus]] |
| - | [[Category: Endrizzi, J A]] | + | [[Category: Alber T]] |
| - | [[Category: Holton, J]] | + | [[Category: Cronk JD]] |
| - | [[Category: Rose, R B]] | + | [[Category: Endrizzi JA]] |
| - | [[Category: Dimerization domain]] | + | [[Category: Holton J]] |
| - | [[Category: Four-helix bundle]] | + | [[Category: Rose RB]] |
| - | [[Category: Selenomethionine]]
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| - | [[Category: Transcription]]
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| - | [[Category: Transcription factor]]
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| Structural highlights
Function
HNF1A_MOUSE Transcriptional activator that regulates the tissue specific expression of multiple genes, especially in pancreatic islet cells and in liver. Required for the expression of several liver specific genes. Binds to the inverted palindrome 5'-GTTAATNATTAAC-3'.[1] [2]
Publication Abstract from PubMed
The N-terminal dimerization domain of the transcriptional activator hepatocyte nuclear factor-1alpha (HNF-1alpha) is essential for DNA binding and association of the transcriptional coactivator, DCoH (dimerization cofactor of HNF-1). To investigate the basis for dimerization of HNF-1 proteins, we determined the 1.2 A resolution X-ray crystal structure of the dimerization domain of HNF-1alpha (HNF-p1). Phasing was facilitated by devising a simple synthesis for Fmoc-selenomethionine and substituting leucine residues with selenomethionine. The HNF-1 dimerization domain forms a unique, four-helix bundle that is preserved with localized conformational shifts in the DCoH complex. In three different crystal forms, HNF-p1 displays subtle shifts in the conformation of the interhelix loop and the crossing angle between the amino- and carboxyl-terminal helices. In all three crystal forms, the HNF-p1 dimers pair through an exposed hydrophobic surface that also forms the binding site for DCoH. Conserved core residues in the dimerization domain of the homologous transcriptional regulator HNF-1beta rationalize the functional heterodimerization of the HNF-1alpha and HNF-1beta proteins. Mutations in HNF-1alpha are associated with maturity-onset diabetes of the young type 3 (MODY3), and the structure of HNF-p1 provides insights into the effects of three MODY3 mutations.
High-resolution structure of the HNF-1alpha dimerization domain.,Rose RB, Endrizzi JA, Cronk JD, Holton J, Alber T Biochemistry. 2000 Dec 12;39(49):15062-70. PMID:11106484[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Servitja JM, Pignatelli M, Maestro MA, Cardalda C, Boj SF, Lozano J, Blanco E, Lafuente A, McCarthy MI, Sumoy L, Guigo R, Ferrer J. Hnf1alpha (MODY3) controls tissue-specific transcriptional programs and exerts opposed effects on cell growth in pancreatic islets and liver. Mol Cell Biol. 2009 Jun;29(11):2945-59. doi: 10.1128/MCB.01389-08. Epub 2009 Mar , 16. PMID:19289501 doi:http://dx.doi.org/10.1128/MCB.01389-08
- ↑ Rose RB, Bayle JH, Endrizzi JA, Cronk JD, Crabtree GR, Alber T. Structural basis of dimerization, coactivator recognition and MODY3 mutations in HNF-1alpha. Nat Struct Biol. 2000 Sep;7(9):744-8. PMID:10966642 doi:10.1038/78966
- ↑ Rose RB, Endrizzi JA, Cronk JD, Holton J, Alber T. High-resolution structure of the HNF-1alpha dimerization domain. Biochemistry. 2000 Dec 12;39(49):15062-70. PMID:11106484
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