This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1tfi
From Proteopedia
(Difference between revisions)
| (8 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | {{STRUCTURE_1tfi| PDB=1tfi | SCENE= }} | ||
| - | ===A NOVEL ZN FINGER MOTIF IN THE BASAL TRANSCRIPTIONAL MACHINERY: THREE-DIMENSIONAL NMR STUDIES OF THE NUCLEIC-ACID BINDING DOMAIN OF TRANSCRIPTIONAL ELONGATION FACTOR TFIIS=== | ||
| - | {{ABSTRACT_PUBMED_8399164}} | ||
| - | == | + | ==A NOVEL ZN FINGER MOTIF IN THE BASAL TRANSCRIPTIONAL MACHINERY: THREE-DIMENSIONAL NMR STUDIES OF THE NUCLEIC-ACID BINDING DOMAIN OF TRANSCRIPTIONAL ELONGATION FACTOR TFIIS== |
| - | [[http://www.uniprot.org/uniprot/TCEA1_HUMAN TCEA1_HUMAN | + | <StructureSection load='1tfi' size='340' side='right'caption='[[1tfi]]' scene=''> |
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1tfi]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TFI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TFI FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=1tfi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tfi OCA], [https://pdbe.org/1tfi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tfi RCSB], [https://www.ebi.ac.uk/pdbsum/1tfi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tfi ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Disease == | ||
| + | [https://www.uniprot.org/uniprot/TCEA1_HUMAN TCEA1_HUMAN] Note=A chromosomal aberration involving TCEA1 may be a cause of salivary gland pleiomorphic adenomas (PA) [181030]. Pleiomorphic adenomas are the most common benign epithelial tumors of the salivary gland. Translocation t(3;8)(p21;q12) with PLAG1. | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/TCEA1_HUMAN TCEA1_HUMAN] Necessary for efficient RNA polymerase II transcription elongation past template-encoded arresting sites. The arresting sites in DNA have the property of trapping a certain fraction of elongating RNA polymerases that pass through, resulting in locked ternary complexes. Cleavage of the nascent transcript by S-II allows the resumption of elongation from the new 3'-terminus. | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tf/1tfi_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1tfi ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Transcriptional elongation provides a key control point in the regulation of eukaryotic gene expression. Here we describe homonuclear and 15N-heteronuclear 3D NMR studies of the nucleic acid binding domain of human transcriptional elongation factor TFIIS. This domain contains a Cys4 Zn(2+)-binding site with no homology to previously characterized Cys4, Cys6, or Cys2-His2 Zn fingers. Complete 1H and 15N NMR resonance assignment of a 50-residue TFIIS peptide-Zn2+ complex is obtained. Its solution structure, as determined by distance geometry/simulated annealing (DG/SA) calculations, exhibits a novel three-stranded antiparallel beta-sheet (designated the Zn ribbon). Analogous sequence motifs occur in a wide class of proteins involved in RNA or DNA transactions, including human basal transcriptional initiation factor TFIIE. A three-dimensional model of the TFIIE Cys4 domain is obtained by DG-based homology modeling. The role of the TFIIS Zn ribbon in the control of eukaryotic transcriptional elongation is discussed. | ||
| - | + | Novel zinc finger motif in the basal transcriptional machinery: three-dimensional NMR studies of the nucleic acid binding domain of transcriptional elongation factor TFIIS.,Qian X, Gozani SN, Yoon H, Jeon CJ, Agarwal K, Weiss MA Biochemistry. 1993 Sep 28;32(38):9944-59. PMID:8399164<ref>PMID:8399164</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| + | <div class="pdbe-citations 1tfi" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
| - | *[[Elongation factor|Elongation factor]] | + | *[[Elongation factor 3D structures|Elongation factor 3D structures]] |
| - | + | == References == | |
| - | == | + | <references/> |
| - | + | __TOC__ | |
| + | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
| - | [[Category: Agarwal | + | [[Category: Large Structures]] |
| - | [[Category: Gozani | + | [[Category: Agarwal K]] |
| - | [[Category: Jeon | + | [[Category: Gozani S]] |
| - | [[Category: Qian | + | [[Category: Jeon CJ]] |
| - | [[Category: Weiss | + | [[Category: Qian X]] |
| - | [[Category: Yoon | + | [[Category: Weiss MA]] |
| - | + | [[Category: Yoon HS]] | |
Current revision
A NOVEL ZN FINGER MOTIF IN THE BASAL TRANSCRIPTIONAL MACHINERY: THREE-DIMENSIONAL NMR STUDIES OF THE NUCLEIC-ACID BINDING DOMAIN OF TRANSCRIPTIONAL ELONGATION FACTOR TFIIS
| |||||||||||
Categories: Homo sapiens | Large Structures | Agarwal K | Gozani S | Jeon CJ | Qian X | Weiss MA | Yoon HS

