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| | <StructureSection load='1f5a' size='340' side='right'caption='[[1f5a]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='1f5a' size='340' side='right'caption='[[1f5a]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1f5a]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bovin Bovin]. The October 2008 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Poly(A) Polymerase'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2008_10 10.2210/rcsb_pdb/mom_2008_10]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F5A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F5A FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1f5a]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. The October 2008 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Poly(A) Polymerase'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2008_10 10.2210/rcsb_pdb/mom_2008_10]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F5A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F5A FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3AT:3-DEOXYADENOSINE-5-TRIPHOSPHATE'>3AT</scene>, <scene name='pdbligand=3PO:TRIPHOSPHATE'>3PO</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3AT:3-DEOXYADENOSINE-5-TRIPHOSPHATE'>3AT</scene>, <scene name='pdbligand=3PO:TRIPHOSPHATE'>3PO</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></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>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Polynucleotide_adenylyltransferase Polynucleotide adenylyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.19 2.7.7.19] </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=1f5a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f5a OCA], [https://pdbe.org/1f5a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f5a RCSB], [https://www.ebi.ac.uk/pdbsum/1f5a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f5a 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=1f5a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f5a OCA], [https://pdbe.org/1f5a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f5a RCSB], [https://www.ebi.ac.uk/pdbsum/1f5a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f5a ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/PAPOA_BOVIN PAPOA_BOVIN]] Polymerase that creates the 3'-poly(A) tail of mRNA's. Also required for the endoribonucleolytic cleavage reaction at some polyadenylation sites. May acquire specificity through interaction with a cleavage and polyadenylation specificity factor (CPSF) at its C-terminus.<ref>PMID:9463383</ref>
| + | [https://www.uniprot.org/uniprot/PAPOA_BOVIN PAPOA_BOVIN] Polymerase that creates the 3'-poly(A) tail of mRNA's. Also required for the endoribonucleolytic cleavage reaction at some polyadenylation sites. May acquire specificity through interaction with a cleavage and polyadenylation specificity factor (CPSF) at its C-terminus.<ref>PMID:9463383</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bovin]] | + | [[Category: Bos taurus]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Polynucleotide adenylyltransferase]] | |
| | [[Category: RCSB PDB Molecule of the Month]] | | [[Category: RCSB PDB Molecule of the Month]] |
| - | [[Category: Doublie, S]] | + | [[Category: Doublie S]] |
| - | [[Category: Keller, W]] | + | [[Category: Keller W]] |
| - | [[Category: Martin, G]] | + | [[Category: Martin G]] |
| - | [[Category: Alternative splicing helical turn motif]]
| + | |
| - | [[Category: Mrna processing]]
| + | |
| - | [[Category: Nuclear protein]]
| + | |
| - | [[Category: Nucleotidyl transferase catalytic domain]]
| + | |
| - | [[Category: Phosphorylation]]
| + | |
| - | [[Category: Rna-binding]]
| + | |
| - | [[Category: Transcription]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
Function
PAPOA_BOVIN Polymerase that creates the 3'-poly(A) tail of mRNA's. Also required for the endoribonucleolytic cleavage reaction at some polyadenylation sites. May acquire specificity through interaction with a cleavage and polyadenylation specificity factor (CPSF) at its C-terminus.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
In eukaryotes, polyadenylation of pre-mRNA plays an essential role in the initiation step of protein synthesis, as well as in the export and stability of mRNAs. Poly(A) polymerase, the enzyme at the heart of the polyadenylation machinery, is a template-independent RNA polymerase which specifically incorporates ATP at the 3' end of mRNA. We have solved the crystal structure of bovine poly(A) polymerase bound to an ATP analog at 2.5 A resolution. The structure revealed expected and unexpected similarities to other proteins. As expected, the catalytic domain of poly(A) polymerase shares substantial structural homology with other nucleotidyl transferases such as DNA polymerase beta and kanamycin transferase. The C-terminal domain unexpectedly folds into a compact domain reminiscent of the RNA-recognition motif fold. The three invariant aspartates of the catalytic triad ligate two of the three active site metals. One of these metals also contacts the adenine ring. Furthermore, conserved, catalytically important residues contact the nucleotide. These contacts, taken together with metal coordination of the adenine base, provide a structural basis for ATP selection by poly(A) polymerase.
Crystal structure of mammalian poly(A) polymerase in complex with an analog of ATP.,Martin G, Keller W, Doublie S EMBO J. 2000 Aug 15;19(16):4193-203. PMID:10944102[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Colgan DF, Murthy KG, Zhao W, Prives C, Manley JL. Inhibition of poly(A) polymerase requires p34cdc2/cyclin B phosphorylation of multiple consensus and non-consensus sites. EMBO J. 1998 Feb 16;17(4):1053-62. PMID:9463383 doi:http://dx.doi.org/10.1093/emboj/17.4.1053
- ↑ Martin G, Keller W, Doublie S. Crystal structure of mammalian poly(A) polymerase in complex with an analog of ATP. EMBO J. 2000 Aug 15;19(16):4193-203. PMID:10944102 doi:10.1093/emboj/19.16.4193
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