1bju: Difference between revisions

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[[Image:1bju.png|left|200px]]


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==BETA-TRYPSIN COMPLEXED WITH ACPU==
The line below this paragraph, containing "STRUCTURE_1bju", creates the "Structure Box" on the page.
<StructureSection load='1bju' size='340' side='right'caption='[[1bju]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1bju]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BJU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BJU FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.8&#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=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=GP6:1-(4-AMIDINOPHENYL)-3-(4-CHLOROPHENYL)UREA'>GP6</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
{{STRUCTURE_1bju|  PDB=1bju  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1bju FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bju OCA], [https://pdbe.org/1bju PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bju RCSB], [https://www.ebi.ac.uk/pdbsum/1bju PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bju ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN]
== 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/bj/1bju_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1bju ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Novel aryl derivatives of benzamidine were synthesized and tested for their inhibitory potency against bovine trypsin, rat skin tryptase, human recombinant granzyme A, human thrombin, and human plasma kallikrein. All compounds show competitive inhibition against these proteases with Ki values in the micromolar range. X-ray structures were determined to 1.8 A resolution for trypsin complexed with two of the para-substituted benzamidine derivatives, 1-(4-amidinophenyl)-3-(4-chlorophenyl)urea (ACPU) and 1-(4-amidinophenyl)-3-(4-phenoxyphenyl)urea (APPU). Although the inhibitors do not engage in direct and specific interactions outside the S1 pocket, they do form intimate indirect contacts with the active site of trypsin. The inhibitors are linked to the enzyme by a sulfate ion that forms an intricate network of three-centered hydrogen bonds. Comparison of these structures with other serine protease structures with noncovalently bound oxyanions reveals a pair of highly conserved oxyanion-binding sites in the active site. The positions of noncovalently bound oxyanions, such as the oxygen atoms of sulfate, are distinct from the positions of covalent oxyanions of tetrahedral intermediates. Noncovalent oxyanion positions are outside the "oxyanion hole." Kinetics data suggest that protonation stabilizes the ternary inhibitor/oxyanion/protease complex. In sum, both cations and anions can mediate Ki. Cation mediation of potency of competitive inhibitors of serine proteases was previously reported by Stroud and co-workers [Katz, B. A., Clark, J. M., Finer-Moore, J. S., Jenkins, T. E., Johnson, C. R., Ross, M. J., Luong, C., Moore, W. R., and Stroud, R. M. (1998) Nature 391, 608-612].


===BETA-TRYPSIN COMPLEXED WITH ACPU===
Oxyanion-mediated inhibition of serine proteases.,Presnell SR, Patil GS, Mura C, Jude KM, Conley JM, Bertrand JA, Kam CM, Powers JC, Williams LD Biochemistry. 1998 Dec 1;37(48):17068-81. PMID:9836602<ref>PMID:9836602</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1bju" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_9836602}}, adds the Publication Abstract to the page
*[[Trypsin 3D structures|Trypsin 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 9836602 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_9836602}}
__TOC__
 
</StructureSection>
==About this Structure==
1BJU is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BJU OCA].
 
==Reference==
<ref group="xtra">PMID:9836602</ref><references group="xtra"/>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Trypsin]]
[[Category: Large Structures]]
[[Category: Bertrand, J.]]
[[Category: Bertrand J]]
[[Category: Conley, J.]]
[[Category: Conley J]]
[[Category: Jude, K.]]
[[Category: Jude K]]
[[Category: Kam, C.]]
[[Category: Kam C]]
[[Category: Mura, C.]]
[[Category: Mura C]]
[[Category: Patil, G.]]
[[Category: Patil G]]
[[Category: Powers, J.]]
[[Category: Powers J]]
[[Category: Presnell, S.]]
[[Category: Presnell S]]
[[Category: Williams, L.]]
[[Category: Williams L]]
[[Category: Digestion]]
[[Category: Hydrolase]]
[[Category: Pancrea]]
[[Category: Serine protease]]
[[Category: Zymogen]]
 
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