1ii3: Difference between revisions

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<StructureSection load='1ii3' size='340' side='right'caption='[[1ii3]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
<StructureSection load='1ii3' size='340' side='right'caption='[[1ii3]], [[Resolution|resolution]] 1.72&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1ii3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/"micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1II3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1II3 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1ii3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1II3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1II3 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1ey0|1ey0]], [[1ihz|1ihz]]</div></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]] 1.72&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Micrococcal_nuclease Micrococcal nuclease], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.31.1 3.1.31.1] </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=1ii3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ii3 OCA], [https://pdbe.org/1ii3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ii3 RCSB], [https://www.ebi.ac.uk/pdbsum/1ii3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ii3 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=1ii3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ii3 OCA], [https://pdbe.org/1ii3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ii3 RCSB], [https://www.ebi.ac.uk/pdbsum/1ii3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ii3 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/NUC_STAAU NUC_STAAU]] Enzyme that catalyzes the hydrolysis of both DNA and RNA at the 5' position of the phosphodiester bond.  
[https://www.uniprot.org/uniprot/NUC_STAAU NUC_STAAU] Enzyme that catalyzes the hydrolysis of both DNA and RNA at the 5' position of the phosphodiester bond.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ii3 ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ii3 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Efforts to design proteins with greatly reduced sequence diversity have often resulted in proteins with so-called molten globule properties. Substitutions were made at six neighboring sites in the major hydrophobic core of staphylococcal nuclease to create variants with all leucine, all isoleucine or all valine at these sites. The mutant proteins with simplified cores constructed here are quite unstable and have poorly packed cores, attested to by interaction energies. Eight related mutants with greater sequence diversity were also constructed. Comparison to these mutants and 159 other permutations of these 3 aliphatic side chains at these same 6 sites previously constructed shows that the simplified cores are not unusual in their stabilities or interaction energies. Further, crystal structures of the two mutants with the worst packing, as measured by interaction energies, showed no unusual disorder in the core. Therefore, reduction of sequence diversity is not necessarily incompatible with a single stable native structure. Other factors must also contribute to previous protein design failures.
Proteins with simplified hydrophobic cores compared to other packing mutants.,Chen J, Lu Z, Sakon J, Stites WE Biophys Chem. 2004 Aug 1;110(3):239-48. PMID:15228960<ref>PMID:15228960</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1ii3" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Staphylococcal nuclease 3D structures|Staphylococcal nuclease 3D structures]]
*[[Staphylococcal nuclease 3D structures|Staphylococcal nuclease 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Micrococcal nuclease]]
[[Category: Staphylococcus aureus]]
[[Category: Chen, J]]
[[Category: Chen J]]
[[Category: Lu, Z]]
[[Category: Lu Z]]
[[Category: Sakon, J]]
[[Category: Sakon J]]
[[Category: Stites, W E]]
[[Category: Stites WE]]
[[Category: Hydrolase]]

Latest revision as of 10:35, 7 February 2024

Structure of S. nuclease quintuple mutant V23I/V66L/I72L/I92L/V99LStructure of S. nuclease quintuple mutant V23I/V66L/I72L/I92L/V99L

Structural highlights

1ii3 is a 1 chain structure with sequence from Staphylococcus aureus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.72Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

NUC_STAAU Enzyme that catalyzes the hydrolysis of both DNA and RNA at the 5' position of the phosphodiester bond.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1ii3, resolution 1.72Å

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