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==Aqualysin I: the crystal structure of a serine protease from an extreme thermophile, Thermus aquaticus YT-1==
==Aqualysin I: the crystal structure of a serine protease from an extreme thermophile, Thermus aquaticus YT-1==
<StructureSection load='4dzt' size='340' side='right' caption='[[4dzt]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
<StructureSection load='4dzt' size='340' side='right'caption='[[4dzt]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4dzt]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DZT OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4DZT FirstGlance]. <br>
<table><tr><td colspan='2'>[[4dzt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4DZT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4DZT FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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]] 1.95&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2prk|2prk]], [[1sup|1sup]], [[2gko|2gko]], [[1svn|1svn]]</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='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Aqualysin_1 Aqualysin 1], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.111 3.4.21.111] </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=4dzt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dzt OCA], [https://pdbe.org/4dzt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4dzt RCSB], [https://www.ebi.ac.uk/pdbsum/4dzt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4dzt ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4dzt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4dzt OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4dzt RCSB], [http://www.ebi.ac.uk/pdbsum/4dzt PDBsum]</span></td></tr>
</table>
</table>
<div style="background-color:#fffaf0;">
== Function ==
== Publication Abstract from PubMed ==
[https://www.uniprot.org/uniprot/AQL1_THEAQ AQL1_THEAQ] Aqualysin I is a thermophilic alkaline serine protease.
Aqualysin I, a thermostable protease found in the culture medium of Thermus aquaticus YT-1, has been purified to homogeneity using a combination of ion-exchange and affinity chromatography. It is a polypeptide with a molecular weight of 28 350 [Kwon, Terada, Matsuzawa &amp; Ohta (1988). Eur. J. Biochem. 173, 491-497] and is most active at 343-353 K and pH about 10.0 [Matsuzawa, Tokugawa, Hamaoki, Mizoguchi, Taguchi, Terada, Kwon &amp; Ohta (1988). Eur. J. Biochem. 171, 441-447]. Crystals of the enzyme are monoclinic, space group P2(1), with cell dimensions a = 40.80 (5), b = 64.39 (6), c = 45.51 (6) A and beta = 109.1 (1) degrees. The asymmetric unit consists of a single molecule (V(m) = 1.99 A(3)Da(-1)). The crystals are stable to X-radiation and scatter to at least 2.8 A resolution.
 
Purification, crystallization and preliminary X-ray investigation of aqualysin I, a heat-stable serine protease.,Green PR, Oliver JD, Strickland LC, Toerner DR, Matsuzawa H, Ohta T Acta Crystallogr D Biol Crystallogr. 1993 May 1;49(Pt 3):349-52. PMID:15299524<ref>PMID:15299524</ref>
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Aqualysin 1]]
[[Category: Large Structures]]
[[Category: Thermus aquaticus]]
[[Category: Thermus aquaticus]]
[[Category: Barnett, B L]]
[[Category: Barnett BL]]
[[Category: Green, P R]]
[[Category: Green PR]]
[[Category: Oliver, J D]]
[[Category: Oliver JD]]
[[Category: Rydel, T]]
[[Category: Rydel T]]
[[Category: Strickland, L C]]
[[Category: Strickland LC]]
[[Category: Sullivan, J F]]
[[Category: Sullivan JF]]
[[Category: Calcium binding]]
[[Category: Hydrolase-hydrolase inhibitor complex]]
[[Category: Inhibitor]]
[[Category: Serine protease]]

Latest revision as of 14:48, 14 March 2024

Aqualysin I: the crystal structure of a serine protease from an extreme thermophile, Thermus aquaticus YT-1

4dzt, resolution 1.95Å

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