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[[Image:1scd.gif|left|200px]]<br /><applet load="1scd" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1scd, resolution 2.3&Aring;" />
'''X-RAY CRYSTAL STRUCTURE OF CROSS-LINKED SUBTILISM CARLSBERG IN WATER VS. ACETONITRILE'''<br />


==Overview==
==X-RAY CRYSTAL STRUCTURE OF CROSS-LINKED SUBTILISM CARLSBERG IN WATER VS. ACETONITRILE==
The crystal structure of subtilisin Carlsberg lightly cross-linked with glutaraldehyde was solved in aqueous solution by X-ray crystallography at 2.3 A resolution. It was found to be virtually identical to the recently determined (Fitzpatrick, P.A., Steinmetz, A.C.U., Ringe, D.A. &amp; Klibanov, A.M. (1993) Proc. Natl. Acad. Sci. USA 90, 8653) structure of the cross-linked enzyme in anhydrous acetonitrile. The latter structure was found to be significantly more rigid than in water, as reflected by their average B factors. The numbers of subtilisin-bound water molecules in the two structures are similar (114 and 99 in water and in acetonitrile, respectively), but the locations of some half of these bound waters are distinct.
<StructureSection load='1scd' size='340' side='right'caption='[[1scd]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1scd]] 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=1SCD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SCD 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]] 2.3&#8491;</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></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=1scd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1scd OCA], [https://pdbe.org/1scd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1scd RCSB], [https://www.ebi.ac.uk/pdbsum/1scd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1scd ProSAT]</span></td></tr>
</table>
== Function ==
[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>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sc/1scd_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1scd ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
1SCD is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_licheniformis Bacillus licheniformis] with <scene name='pdbligand=CA:'>CA</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Active as [http://en.wikipedia.org/wiki/Subtilisin Subtilisin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.62 3.4.21.62] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SCD OCA].
*[[Subtilisin 3D structures|Subtilisin 3D structures]]
 
== References ==
==Reference==
<references/>
X-ray crystal structure of cross-linked subtilisin Carlsberg in water vs. acetonitrile., Fitzpatrick PA, Ringe D, Klibanov AM, Biochem Biophys Res Commun. 1994 Jan 28;198(2):675-81. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8297378 8297378]
__TOC__
</StructureSection>
[[Category: Bacillus licheniformis]]
[[Category: Bacillus licheniformis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Subtilisin]]
[[Category: Fitzpatrick PA]]
[[Category: Fitzpatrick, P A.]]
[[Category: Klibanov AM]]
[[Category: Klibanov, A M.]]
[[Category: Ringe D]]
[[Category: Ringe, D.]]
[[Category: CA]]
[[Category: serine protease]]
 
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