8q6v: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
The | ==Cryo-EM structure of S. cerevisiae Rai1-Rat1 dimer.== | ||
<StructureSection load='8q6v' size='340' side='right'caption='[[8q6v]], [[Resolution|resolution]] 3.23Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8q6v]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8Q6V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8Q6V FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.23Å</td></tr> | |||
[[Category: | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=8q6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8q6v OCA], [https://pdbe.org/8q6v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8q6v RCSB], [https://www.ebi.ac.uk/pdbsum/8q6v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8q6v ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/DXO_YEAST DXO_YEAST] Decapping enzyme for NAD-capped RNAs: specifically hydrolyzes the nicotinamide adenine dinucleotide (NAD) cap from a subset of RNAs by removing the entire NAD moiety from the 5'-end of an NAD-capped RNA (By similarity). The NAD-cap is present at the 5'-end of some RNAs and snoRNAs. In contrast to the canonical 5'-end N7 methylguanosine (m7G) cap, the NAD cap promotes mRNA decay (By similarity). Also acts as a non-canonical decapping enzyme that removes the entire cap structure of m7G capped or incompletely capped RNAs (PubMed:12897126, PubMed:20802481, PubMed:26101253). Has decapping activity toward incomplete 5'-end m7G cap mRNAs such as unmethylated 5'-end-capped RNA (cap0), while it has no activity toward 2'-O-ribose methylated m7G cap (cap1) (PubMed:12897126, PubMed:20802481). Also possesses RNA 5'-pyrophosphohydrolase activity by hydrolyzing the 5'-end triphosphate to release pyrophosphates (PubMed:20802481). Stimulates exoribonuclease activity of RAT1, allowing it to degrade RNAs with stable secondary structure more effectively (PubMed:20802481). Required for the processing of nuclear mRNA and rRNA precursors (PubMed:10805743, PubMed:12612077, PubMed:16131592). May promote termination of transcription by RNA polymerase II (PubMed:15565157).[UniProtKB:O13836][UniProtKB:O70348]<ref>PMID:10805743</ref> <ref>PMID:12612077</ref> <ref>PMID:12897126</ref> <ref>PMID:15565157</ref> <ref>PMID:16131592</ref> <ref>PMID:20802481</ref> <ref>PMID:26101253</ref> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Saccharomyces cerevisiae]] | |||
[[Category: Dikunova A]] | |||
[[Category: Noskova N]] | |||
[[Category: Stefl R]] | |||
Latest revision as of 19:48, 11 December 2024
Cryo-EM structure of S. cerevisiae Rai1-Rat1 dimer.
| ||||||||||||
