5zbz
From Proteopedia
(Difference between revisions)
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==Crystal structure of the DEAD domain of Human eIF4A with sanguinarine== | ==Crystal structure of the DEAD domain of Human eIF4A with sanguinarine== | ||
| - | <StructureSection load='5zbz' size='340' side='right' caption='[[5zbz]], [[Resolution|resolution]] 1.31Å' scene=''> | + | <StructureSection load='5zbz' size='340' side='right'caption='[[5zbz]], [[Resolution|resolution]] 1.31Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[5zbz]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ZBZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ZBZ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5zbz]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ZBZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ZBZ FirstGlance]. <br> |
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLI:MALONATE+ION'>MLI</scene>, <scene name='pdbligand=SAU:13-METHYL[1,3]BENZODIOXOLO[5,6-C][1,3]DIOXOLO[4,5-I]PHENANTHRIDIN-13-IUM'>SAU</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLI:MALONATE+ION'>MLI</scene>, <scene name='pdbligand=SAU:13-METHYL[1,3]BENZODIOXOLO[5,6-C][1,3]DIOXOLO[4,5-I]PHENANTHRIDIN-13-IUM'>SAU</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLY:N-DIMETHYL-LYSINE'>MLY</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLY:N-DIMETHYL-LYSINE'>MLY</scene></td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EIF4A1, DDX2A, EIF4A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA_helicase RNA helicase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.13 3.6.4.13] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA_helicase RNA helicase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.13 3.6.4.13] </span></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=5zbz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5zbz OCA], [http://pdbe.org/5zbz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5zbz RCSB], [http://www.ebi.ac.uk/pdbsum/5zbz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5zbz ProSAT]</span></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=5zbz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5zbz OCA], [http://pdbe.org/5zbz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5zbz RCSB], [http://www.ebi.ac.uk/pdbsum/5zbz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5zbz ProSAT]</span></td></tr> | ||
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/IF4A1_HUMAN IF4A1_HUMAN]] ATP-dependent RNA helicase which is a subunit of the eIF4F complex involved in cap recognition and is required for mRNA binding to ribosome. In the current model of translation initiation, eIF4A unwinds RNA secondary structures in the 5'-UTR of mRNAs which is necessary to allow efficient binding of the small ribosomal subunit, and subsequent scanning for the initiator codon.<ref>PMID:19153607</ref> <ref>PMID:19204291</ref> | [[http://www.uniprot.org/uniprot/IF4A1_HUMAN IF4A1_HUMAN]] ATP-dependent RNA helicase which is a subunit of the eIF4F complex involved in cap recognition and is required for mRNA binding to ribosome. In the current model of translation initiation, eIF4A unwinds RNA secondary structures in the 5'-UTR of mRNAs which is necessary to allow efficient binding of the small ribosomal subunit, and subsequent scanning for the initiator codon.<ref>PMID:19153607</ref> <ref>PMID:19204291</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | DEAD-box ATP-dependent helicases (DEAH/D) are a family of conserved genes predominantly involved in gene expression regulation and RNA processing. As its prototype, eIF4AI is an essential component of the protein translation initiation complex. Utilizing a screening system based on wild-type eIF4AI and its L243G mutant with a changed linker domain, we discovered an eIF4AI inhibitor, sanguinarine (SAN) and used it to study the catalytic mechanism of eIF4AI. Herein, we describe the crystal structure of the eIF4AI-inhibitor complex and demonstrate that the binding site displays certain specificity, which can provide the basis for drug design to target eIF4AI. We report that except for competitive inhibition SAN's possible mechanism of action involves interference with eIF4AI catalytic cycling process by hindering the formation of the closed conformation of eIF4AI. In addition, our results highlight a new targetable site on eIF4AI and confirm eIF4AI as a viable pharmacological target. | ||
| + | |||
| + | Targeting the N Terminus of eIF4AI for Inhibition of Its Catalytic Recycling.,Jiang C, Tang Y, Ding L, Tan R, Li X, Lu J, Jiang J, Cui Z, Tang Z, Li W, Cao Z, Schneider-Poetsch T, Jiang W, Luo C, Ding Y, Liu J, Dang Y Cell Chem Biol. 2019 Oct 17;26(10):1417-1426.e5. doi:, 10.1016/j.chembiol.2019.07.010. Epub 2019 Aug 8. PMID:31402318<ref>PMID:31402318</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5zbz" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Eukaryotic initiation factor 3D structures|Eukaryotic initiation factor 3D structures]] | ||
| + | *[[Helicase 3D structures|Helicase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Human]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: RNA helicase]] | [[Category: RNA helicase]] | ||
[[Category: Ding, L]] | [[Category: Ding, L]] | ||
Revision as of 09:26, 30 October 2019
Crystal structure of the DEAD domain of Human eIF4A with sanguinarine
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