1fon: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1fon]] is a 2 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=1FON OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FON FirstGlance]. <br>
<table><tr><td colspan='2'>[[1fon]] is a 2 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=1FON OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FON FirstGlance]. <br>
</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=1fon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fon OCA], [https://pdbe.org/1fon PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fon RCSB], [https://www.ebi.ac.uk/pdbsum/1fon PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fon ProSAT]</span></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]] 1.7&#8491;</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=1fon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fon OCA], [https://pdbe.org/1fon PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fon RCSB], [https://www.ebi.ac.uk/pdbsum/1fon PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fon ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/CAC3_BOVIN CAC3_BOVIN]] May protect procarboxypeptidase A against denaturation in the acidic environment of the ruminant duodenum.  
[https://www.uniprot.org/uniprot/CAC3_BOVIN CAC3_BOVIN] May protect procarboxypeptidase A against denaturation in the acidic environment of the ruminant duodenum.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1fon 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=1fon ConSurf].
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<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Subunit III, a defective serine endopeptidase lacking the typical N-terminal hydrophobic dipeptide is secreted by the pancreas of ruminant species as part of the bovine ternary complex procarboxypeptidase A-S6. Two monoclinic crystal forms were obtained and subsequently used to solve its X-ray structure. The highest resolution model of subunit III was refined at 1.7 A resolution to a crystallographic R-factor of 18.4%, with r.m.s. bond deviations from ideality of 0.012 A. About 80% of the model presents the characteristic architecture of trypsin-like proteases. The remaining zones, however, have well-defined, unique conformations. The regions from residues 70 to 80 and from 140 to 155 present maximum distances of 16 and 18 A relative to serine proteases and zymogens. Comparisons with the structures of porcine elastase 1 and chymotrypsinogen A indicate that the specific binding pocket of subunit III adopts a zymogen-like conformation and thus provide a basis for its inactivity. In general, the structural analysis of subunit III strongly suggests that it corresponds to a truncated version of a new class of highly structured elastase-like zymogen molecules. Based on the structures of subunit III and elastase 1, it is concluded that large concerted movements are necessary for the activation of zymogen E.
Crystal structure of bovine procarboxypeptidase A-S6 subunit III, a highly structured truncated zymogen E.,Pignol D, Gaboriaud C, Michon T, Kerfelec B, Chapus C, Fontecilla-Camps JC EMBO J. 1994 Apr 15;13(8):1763-71. PMID:8168476<ref>PMID:8168476</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1fon" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Carboxypeptidase 3D structures|Carboxypeptidase 3D structures]]
*[[Carboxypeptidase 3D structures|Carboxypeptidase 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Chapus, C]]
[[Category: Chapus C]]
[[Category: Fontecilla-Camps, J C]]
[[Category: Fontecilla-Camps JC]]
[[Category: Gaboriaud, T]]
[[Category: Gaboriaud T]]
[[Category: Kerfelec, B]]
[[Category: Kerfelec B]]
[[Category: Michon, B]]
[[Category: Michon B]]
[[Category: Pignol, D C]]
[[Category: Pignol DC]]
[[Category: Serine protease]]
[[Category: Truncated zymogen e]]

Revision as of 14:15, 27 March 2024

CRYSTAL STRUCTURE OF BOVINE PROCARBOXYPEPTIDASE A-S6 SUBUNIT III, A HIGHLY STRUCTURED TRUNCATED ZYMOGEN ECRYSTAL STRUCTURE OF BOVINE PROCARBOXYPEPTIDASE A-S6 SUBUNIT III, A HIGHLY STRUCTURED TRUNCATED ZYMOGEN E

Structural highlights

1fon is a 2 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.7Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CAC3_BOVIN May protect procarboxypeptidase A against denaturation in the acidic environment of the ruminant duodenum.

Evolutionary Conservation

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

See Also

1fon, resolution 1.70Å

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