1s6h

From Proteopedia

(Difference between revisions)

Revision as of 10:37, 12 October 2017

PORCINE TRYPSIN COMPLEXED WITH GUANIDINE-3-PROPANOL INHIBITOR

Structural highlights

1s6h is a 1 chain structure with sequence from Pig. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	1s5s, 1s6f
Activity:	Trypsin, with EC number 3.4.21.4
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Evolutionary Conservation

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

Publication Abstract from PubMed

An understanding of the physiological and toxicological properties of borate and the utilization of boronic acids in drug development require a basic understanding of borate-enzyme chemistry. We report here the extension of our recent NMR studies indicating the formation of a ternary borate-alcohol-trypsin complex. Crystallographic and solution state NMR studies of porcine trypsin were performed in the presence of borate and either of three alcohols designed to bind to the S1 affinity subsite: 4-aminobutanol, guanidine-3-propanol, and 4-hydroxymethylbenzamidine. Quaternary complexes of trypsin, borate, S1-binding alcohol, and ethylene glycol (a cryoprotectant), as well as a ternary trypsin, borate, and ethylene glycol complex have been observed in the crystalline state. Borate forms ester bonds to Ser195, ethylene glycol (two bonds), and the S1-binding alcohol (if present). Spectra from (1)H and (11)B NMR studies confirm that these complexes also exist in solution and also provide evidence for the formation of ternary trypsin, borate, and S1-subsite alcohol complexes which are not observed in the crystals using our experimental protocols. Analysis of eight crystal structures indicates that formation of an active site borate complex is in all cases accompanied by a significant (approximately 4%) increase in the b-axis dimension of the unit cell. Presumably, our inability to observe the ternary complexes in the crystalline state arises from the lower stability of these complexes and consequent inability to overcome the constraints imposed by the lattice contacts. A mechanism for the coupling of the lattice contacts with the active site that involves a conformational rearrangement of Gln192 is suggested. The structures presented here represent the first crystallographic demonstration of covalent binding of an enzyme by borate.

X-ray and NMR characterization of covalent complexes of trypsin, borate, and alcohols.,Transue TR, Krahn JM, Gabel SA, DeRose EF, London RE Biochemistry. 2004 Mar 16;43(10):2829-39. PMID:15005618^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Transue TR, Krahn JM, Gabel SA, DeRose EF, London RE. X-ray and NMR characterization of covalent complexes of trypsin, borate, and alcohols. Biochemistry. 2004 Mar 16;43(10):2829-39. PMID:15005618 doi:10.1021/bi035782y

1 Structural highlights
2 Evolutionary Conservation
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1s6h"

@@ Line 1: / Line 1: @@
 ==PORCINE TRYPSIN COMPLEXED WITH GUANIDINE-3-PROPANOL INHIBITOR==
 <StructureSection load='1s6h' size='340' side='right' caption='[[1s6h]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1s6h]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S6H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1S6H FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1s6h]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pig Pig]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S6H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1S6H FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=4BZ:4-(HYDROXYMETHYL)BENZAMIDINE'>4BZ</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1s5s|1s5s]], [[1s6f|1s6f]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Trypsin Trypsin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.4 3.4.21.4] </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=1s6h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s6h OCA], [http://pdbe.org/1s6h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1s6h RCSB], [http://www.ebi.ac.uk/pdbsum/1s6h PDBsum]</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=1s6h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1s6h OCA], [http://pdbe.org/1s6h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1s6h RCSB], [http://www.ebi.ac.uk/pdbsum/1s6h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1s6h ProSAT]</span></td></tr>
 </table>
 == Evolutionary Conservation ==
@@ Line 16: / Line 17: @@
     <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/chain_selection.php?pdb_ID=2ata 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=1s6h ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 27: / Line 28: @@
 </div>
 <div class="pdbe-citations 1s6h" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Trypsin|Trypsin]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Sus scrofa]]
+[[Category: Pig]]
 [[Category: Trypsin]]
 [[Category: Derose, E F]]

1s6h

From Proteopedia

Revision as of 10:37, 12 October 2017

PORCINE TRYPSIN COMPLEXED WITH GUANIDINE-3-PROPANOL INHIBITOR

Structural highlights

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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