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| | <StructureSection load='5tbx' size='340' side='right'caption='[[5tbx]], [[Resolution|resolution]] 1.77Å' scene=''> | | <StructureSection load='5tbx' size='340' side='right'caption='[[5tbx]], [[Resolution|resolution]] 1.77Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5tbx]] is a 2 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=5TBX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5TBX FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5tbx]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TBX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5TBX FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</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]] 1.767Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CIRBP, A18HNRNP, CIRP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</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=5tbx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5tbx OCA], [http://pdbe.org/5tbx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5tbx RCSB], [http://www.ebi.ac.uk/pdbsum/5tbx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5tbx ProSAT]</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=5tbx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5tbx OCA], [https://pdbe.org/5tbx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5tbx RCSB], [https://www.ebi.ac.uk/pdbsum/5tbx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5tbx ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/CIRBP_HUMAN CIRBP_HUMAN]] Cold-inducible mRNA binding protein that plays a protective role in the genotoxic stress response by stabilizing transcripts of genes involved in cell survival. Acts as a translational activator. Seems to play an essential role in cold-induced suppression of cell proliferation. Binds specifically to the 3'-untranslated regions (3'-UTRs) of stress-responsive transcripts RPA2 and TXN. Acts as a translational repressor (By similarity). Promotes assembly of stress granules (SGs), when overexpressed.<ref>PMID:11574538</ref> <ref>PMID:16513844</ref> | + | [https://www.uniprot.org/uniprot/CIRBP_HUMAN CIRBP_HUMAN] Cold-inducible mRNA binding protein that plays a protective role in the genotoxic stress response by stabilizing transcripts of genes involved in cell survival. Acts as a translational activator. Seems to play an essential role in cold-induced suppression of cell proliferation. Binds specifically to the 3'-untranslated regions (3'-UTRs) of stress-responsive transcripts RPA2 and TXN. Acts as a translational repressor (By similarity). Promotes assembly of stress granules (SGs), when overexpressed.<ref>PMID:11574538</ref> <ref>PMID:16513844</ref> |
| - | <div style="background-color:#fffaf0;">
| + | |
| - | == Publication Abstract from PubMed ==
| + | |
| - | The heterogeneous ribonucleoprotein A18 (hnRNP A18) is upregulated in hypoxic regions of various solid tumors and promotes tumor growth via the coordination of mRNA transcripts associated with pro-survival genes. Thus, hnRNP A18 represents an important therapeutic target in tumor cells. Presented here is the first X-ray crystal structure to be reported for the RNA-recognition motif of hnRNP A18. By comparing this structure with those of homologous RNA-binding proteins (i.e. hnRNP A1), three residues on one face of an antiparallel beta-sheet (Arg48, Phe50 and Phe52) and one residue in an unstructured loop (Arg41) were identified as likely to be involved in protein-nucleic acid interactions. This structure helps to serve as a foundation for biophysical studies of this RNA-binding protein and structure-based drug-design efforts for targeting hnRNP A18 in cancer, such as malignant melanoma, where hnRNP A18 levels are elevated and contribute to disease progression.
| + | |
| - | | + | |
| - | Crystal structure of the human heterogeneous ribonucleoprotein A18 RNA-recognition motif.,Coburn K, Melville Z, Aligholizadeh E, Roth BM, Varney KM, Carrier F, Pozharski E, Weber DJ Acta Crystallogr F Struct Biol Commun. 2017 Apr 1;73(Pt 4):209-214. doi:, 10.1107/S2053230X17003454. Epub 2017 Mar 22. PMID:28368279<ref>PMID:28368279</ref>
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| - | | + | |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div>
| + | |
| - | <div class="pdbe-citations 5tbx" style="background-color:#fffaf0;"></div>
| + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Aligholizadeh, E]] | + | [[Category: Aligholizadeh E]] |
| - | [[Category: Coburn, K M]] | + | [[Category: Coburn KM]] |
| - | [[Category: Melville, Z]] | + | [[Category: Melville Z]] |
| - | [[Category: Roth, B M]] | + | [[Category: Roth BM]] |
| - | [[Category: Varney, K M]] | + | [[Category: Varney KM]] |
| - | [[Category: Weber, D J]] | + | [[Category: Weber DJ]] |
| - | [[Category: Rna binding protein]]
| + | |
| - | [[Category: Rna-binding protein]]
| + | |
