1sca

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[[Image:1sca.gif|left|200px]]
 
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==ENZYME CRYSTAL STRUCTURE IN A NEAT ORGANIC SOLVENT==
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The line below this paragraph, containing "STRUCTURE_1sca", creates the "Structure Box" on the page.
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<StructureSection load='1sca' size='340' side='right'caption='[[1sca]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1sca]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_licheniformis Bacillus licheniformis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SCA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SCA FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
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<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=NA:SODIUM+ION'>NA</scene></td></tr>
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{{STRUCTURE_1sca| PDB=1sca | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1sca FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sca OCA], [https://pdbe.org/1sca PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sca RCSB], [https://www.ebi.ac.uk/pdbsum/1sca PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sca ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SUBC_BACLI SUBC_BACLI] Subtilisin is an extracellular alkaline serine protease, it catalyzes the hydrolysis of proteins and peptide amides (Ref.4, PubMed:11109488). Shows high specificity for aromatic and hydrophobic amino acids in the P1 substrate position (PubMed:11109488). May play an important role in the degradation of feather keratin (PubMed:11109488).<ref>PMID:11109488</ref> <ref>PMID:4967581</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sc/1sca_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=1sca ConSurf].
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<div style="clear:both"></div>
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'''ENZYME CRYSTAL STRUCTURE IN A NEAT ORGANIC SOLVENT'''
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==See Also==
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*[[Subtilisin 3D structures|Subtilisin 3D structures]]
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== References ==
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==Overview==
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<references/>
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The crystal structure of the serine protease subtilisin Carlsberg in anhydrous acetonitrile was determined at 2.3 A resolution. It was found to be essentially identical to the three-dimensional structure of the enzyme in water; the differences observed were smaller than those between two independently determined structures in aqueous solution. The hydrogen bond system of the catalytic triad is intact in acetonitrile. The majority (99 of 119) of enzyme-bound, structural water molecules have such a great affinity to subtilisin that they are not displaced even in anhydrous acetonitrile. Of the 12 enzyme-bound acetonitrile molecules, 4 displace water molecules and 8 bind where no water had been observed before. One-third of all subtilisin-bound acetonitrile molecules reside in the active center, occupying the same region (P1, P2, and P3 binding sites) as the specific protein inhibitor eglin c.
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__TOC__
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</StructureSection>
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==About this Structure==
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1SCA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_licheniformis Bacillus licheniformis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SCA OCA].
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==Reference==
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Enzyme crystal structure in a neat organic solvent., Fitzpatrick PA, Steinmetz AC, Ringe D, Klibanov AM, Proc Natl Acad Sci U S A. 1993 Sep 15;90(18):8653-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8378343 8378343]
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[[Category: Bacillus licheniformis]]
[[Category: Bacillus licheniformis]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Subtilisin]]
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[[Category: Fitzpatrick PA]]
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[[Category: Fitzpatrick, P A.]]
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[[Category: Klibanov AM]]
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[[Category: Klibanov, A M.]]
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[[Category: Ringe D]]
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[[Category: Ringe, D.]]
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[[Category: Steinmetz ACU]]
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[[Category: Steinmetz, A C.U.]]
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[[Category: Serine protease]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:32:23 2008''
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Current revision

ENZYME CRYSTAL STRUCTURE IN A NEAT ORGANIC SOLVENT

PDB ID 1sca

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