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'''Unreleased structure'''


The entry 4xoj is ON HOLD
==Structure of bovine trypsin in complex with analogues of sunflower inhibitor 1 (SFTI-1)==
<StructureSection load='4xoj' size='340' side='right'caption='[[4xoj]], [[Resolution|resolution]] 0.91&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4xoj]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Helianthus_annuus Helianthus annuus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XOJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XOJ 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]] 0.91&#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>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NH4:AMMONIUM+ION'>NH4</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4xoj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xoj OCA], [https://pdbe.org/4xoj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xoj RCSB], [https://www.ebi.ac.uk/pdbsum/4xoj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xoj ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TRY1_BOVIN TRY1_BOVIN]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Serine proteinase catalyzed peptide splicing was demonstrated in both, one and two-peptide-chain (C- and N-terminal peptide chains linked by a disulfide bridge) trypsin inhibitor SFTI-1 analogues. In the second series, peptide splicing, with catalytic amount of proteinase, was observed only when formation of acyl-enzyme intermediate was preceded by the hydrolysis of the substrate Lys-Ser peptide bond. Here we presented that at an equimolar amount of the proteinase, splicing occurred in all two-peptide-chain analogues. This conclusion was supported by high resolution crystal structures of selected analogues in complex with trypsin. We showed that the process followed a direct transpeptidation mechanism. It means that the acyl-enzyme intermediate was formed and was immediately utilized for a new peptide bond formation, and products associated with the hydrolysis of acyl-enzyme were not observed. The demonstrated peptide splicing was a sequence- not structure-specific.


Authors: Golik, P., Malicki, S., Grudnik, P., Karna, N., Debowski, D., Legowska, A., Wladyka, B., Gitlin, A., Brzozowski, K., Dubin, G., Rolka, K.
Investigation of serine proteinase catalyzed peptide splicing in analogues of sunflower trypsin inhibitor 1 (SFTI-1).,Karna N, Malicki S, Debowski D, Golik P, Gitlin A, Grudnik P, Wladyka B, Brzozowski K, Dubin G, Rolka K, Legowska A Chembiochem. 2015 Jul 25. doi: 10.1002/cbic.201500296. PMID:26212347<ref>PMID:26212347</ref>


Description: Structure of bovine trypsin in complex with analogues of sunflower inhibitor 1 (SFTI-1)
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Grudnik, P]]
<div class="pdbe-citations 4xoj" style="background-color:#fffaf0;"></div>
[[Category: Malicki, S]]
 
[[Category: Brzozowski, K]]
==See Also==
[[Category: Karna, N]]
*[[Trypsin 3D structures|Trypsin 3D structures]]
[[Category: Debowski, D]]
*[[Trypsin inhibitor 3D structures|Trypsin inhibitor 3D structures]]
[[Category: Rolka, K]]
== References ==
[[Category: Dubin, G]]
<references/>
[[Category: Legowska, A]]
__TOC__
[[Category: Wladyka, B]]
</StructureSection>
[[Category: Golik, P]]
[[Category: Bos taurus]]
[[Category: Gitlin, A]]
[[Category: Helianthus annuus]]
[[Category: Large Structures]]
[[Category: Brzozowski K]]
[[Category: Debowski D]]
[[Category: Dubin G]]
[[Category: Gitlin A]]
[[Category: Golik P]]
[[Category: Grudnik P]]
[[Category: Karna N]]
[[Category: Legowska A]]
[[Category: Malicki S]]
[[Category: Rolka K]]
[[Category: Wladyka B]]
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