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.
3aly
From Proteopedia
(Difference between revisions)
| (7 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==Crystal Structure of RNase HI from Sulfolobus tokodaii with C-terminal deletion== | |
| + | <StructureSection load='3aly' size='340' side='right'caption='[[3aly]], [[Resolution|resolution]] 1.66Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[3aly]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Sulfurisphaera_tokodaii_str._7 Sulfurisphaera tokodaii str. 7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ALY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ALY FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.66Å</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=3aly FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3aly OCA], [https://pdbe.org/3aly PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3aly RCSB], [https://www.ebi.ac.uk/pdbsum/3aly PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3aly ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RNH_SULTO RNH_SULTO] Nuclease that specifically degrades the RNA of RNA-DNA hybrids. Endonucleolytically removes RNA primers from the Okazaki fragments of lagging strand synthesis on its own. In the presence of Mn(2+) or Co(2+) can also cleave an RNA-RNA hybrid; the dsRNase activity is 10- 100-fold lower than RNase H activity. Complements the temperature-sensitive phenotype of an E.coli double rnhA/rnhB (RNase H) disruption mutant.<ref>PMID:15520465</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | RNase HI from the hyperthermophile Sulfolobus tokodaii (Sto-RNase HI) is stabilized by its C-terminal residues. In this work, the stabilization effect of the Sto-RNase HI C-terminal residues was investigated in detail by thermodynamic measurements of the stability of variants lacking the disulfide bond (C58/145A), or the six C-terminal residues (DeltaC6) and by structural analysis of DeltaC6. The results showed that the C-terminal does not affect overall structure and stabilization is caused by local interactions of the C-terminal, suggesting that the C-terminal residues could be used as a "stabilization tag." The Sto-RNase HI C-terminal residues (-IGCIILT) were introduced as a tag on three proteins. Each chimeric protein was more stable than its wild-type protein. These results suggested the possibility of a simple stabilization technique using a stabilization tag such as Sto-RNase HI C-terminal residues. | ||
| - | + | Stabilization by fusion to the C-terminus of hyperthermophile Sulfolobus tokodaii RNase HI: a possibility of protein stabilization tag.,Takano K, Okamoto T, Okada J, Tanaka S, Angkawidjaja C, Koga Y, Kanaya S PLoS One. 2011 Jan 19;6(1):e16226. PMID:21283826<ref>PMID:21283826</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 3aly" style="background-color:#fffaf0;"></div> | |
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Sulfurisphaera tokodaii str. 7]] | ||
| + | [[Category: Angkawidjaja C]] | ||
| + | [[Category: Kanaya S]] | ||
| + | [[Category: Takano K]] | ||
Current revision
Crystal Structure of RNase HI from Sulfolobus tokodaii with C-terminal deletion
| |||||||||||
