1sh7: Difference between revisions

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<StructureSection load='1sh7' size='340' side='right'caption='[[1sh7]], [[Resolution|resolution]] 1.84&Aring;' scene=''>
<StructureSection load='1sh7' size='340' side='right'caption='[[1sh7]], [[Resolution|resolution]] 1.84&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1sh7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_sp._pa-44 Vibrio sp. pa-44]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SH7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SH7 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1sh7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_sp._PA-44 Vibrio sp. PA-44]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SH7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SH7 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=PMS:PHENYLMETHANESULFONIC+ACID'>PMS</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]] 1.84&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1s2n|1s2n]]</div></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=PMS:PHENYLMETHANESULFONIC+ACID'>PMS</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=1sh7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sh7 OCA], [https://pdbe.org/1sh7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sh7 RCSB], [https://www.ebi.ac.uk/pdbsum/1sh7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sh7 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=1sh7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sh7 OCA], [https://pdbe.org/1sh7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sh7 RCSB], [https://www.ebi.ac.uk/pdbsum/1sh7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sh7 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q8GB52_9VIBR Q8GB52_9VIBR]
== 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=1sh7 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=1sh7 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of a subtilisin-like serine proteinase from the psychrotrophic marine bacterium, Vibrio sp. PA-44, was solved by means of molecular replacement and refined at 1.84 A. This is the first structure of a cold-adapted subtilase to be determined and its elucidation facilitates examination of the molecular principles underlying temperature adaptation in enzymes. The cold-adapted Vibrio proteinase was compared with known three-dimensional structures of homologous enzymes of meso- and thermophilic origin, proteinase K and thermitase, to which it has high structural resemblance. The main structural features emerging as plausible determinants of temperature adaptation in the enzymes compared involve the character of their exposed and buried surfaces, which may be related to temperature-dependent variation in the physical properties of water. Thus, the hydrophobic effect is found to play a significant role in the structural stability of the meso- and thermophile enzymes, whereas the cold-adapted enzyme has more of its apolar surface exposed. In addition, the cold-adapted Vibrio proteinase is distinguished from the more stable enzymes by its strong anionic character arising from the high occurrence of uncompensated negatively charged residues at its surface. Interestingly, both the cold-adapted and thermophile proteinases differ from the mesophile enzyme in having more extensive hydrogen- and ion pair interactions in their structures; this supports suggestions of a dual role of electrostatic interactions in the adaptation of enzymes to both high and low temperatures. The Vibrio proteinase has three calcium ions associated with its structure, one of which is in a calcium-binding site not described in other subtilases.
Crystal structure of a subtilisin-like serine proteinase from a psychrotrophic Vibrio species reveals structural aspects of cold adaptation.,Arnorsdottir J, Kristjansson MM, Ficner R FEBS J. 2005 Feb;272(3):832-45. PMID:15670163<ref>PMID:15670163</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1sh7" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Proteinase|Proteinase]]
*[[Proteinase 3D structures|Proteinase 3D structures]]
*[[Proteinase 3D structures|Proteinase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Vibrio sp. pa-44]]
[[Category: Vibrio sp. PA-44]]
[[Category: Arnorsdottir, J]]
[[Category: Arnorsdottir J]]
[[Category: Ficner, R]]
[[Category: Ficner R]]
[[Category: Kristjansson, M M]]
[[Category: Kristjansson MM]]
[[Category: Calcium depentent]]
[[Category: Cold adaptation]]
[[Category: Hydrolase]]
[[Category: Psychrotrophic]]
[[Category: Subtilisin-like proteinase]]

Revision as of 11:31, 1 May 2024

Crystal structure of a cold adapted subtilisin-like serine proteinaseCrystal structure of a cold adapted subtilisin-like serine proteinase

Structural highlights

1sh7 is a 2 chain structure with sequence from Vibrio sp. PA-44. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.84Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q8GB52_9VIBR

Evolutionary Conservation

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

See Also

1sh7, resolution 1.84Å

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