This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.


Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


1esc

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (10:05, 20 March 2024) (edit) (undo)
 
(5 intermediate revisions not shown.)
Line 1: Line 1:
 +
==THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES==
==THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES==
-
<StructureSection load='1esc' size='340' side='right' caption='[[1esc]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
+
<StructureSection load='1esc' size='340' side='right'caption='[[1esc]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
-
<table><tr><td colspan='2'>[[1esc]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptomyces_scabiei Streptomyces scabiei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ESC FirstGlance]. <br>
+
<table><tr><td colspan='2'>[[1esc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptomyces_scabiei Streptomyces scabiei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ESC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ESC FirstGlance]. <br>
-
</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=1esc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1esc OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1esc RCSB], [http://www.ebi.ac.uk/pdbsum/1esc PDBsum]</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]] 2.1&#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=1esc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1esc OCA], [https://pdbe.org/1esc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1esc RCSB], [https://www.ebi.ac.uk/pdbsum/1esc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1esc ProSAT]</span></td></tr>
</table>
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/ESTA_STRSC ESTA_STRSC]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
-
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/es/1esc_consurf.spt"</scriptWhenChecked>
+
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/es/1esc_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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=1esc ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
-
<div style="background-color:#fffaf0;">
 
-
== Publication Abstract from PubMed ==
 
-
The crystal structure of a novel esterase from Streptomyces scabies, a causal agent of the potato scab disease, was solved at 2.1 A resolution. The tertiary fold of the enzyme is substantially different from that of the alpha/beta hydrolase family and unique among all known hydrolases. The active site contains a dyad of Ser 14 and His 283, closely resembling two of the three components of typical Ser-His-Asp(Glu) triads from other serine hydrolases. Proper orientation of the active site imidazol is maintained by a hydrogen bond between the N delta-H group and a main chain oxygen. Thus, the enzyme constitutes the first known natural variation of the chymotrypsin-like triad in which a carboxylic acid is replaced by a neutral hydrogen-bond acceptor.
 
- 
-
A novel variant of the catalytic triad in the Streptomyces scabies esterase.,Wei Y, Schottel JL, Derewenda U, Swenson L, Patkar S, Derewenda ZS Nat Struct Biol. 1995 Mar;2(3):218-23. PMID:7773790<ref>PMID:7773790</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: Large Structures]]
[[Category: Streptomyces scabiei]]
[[Category: Streptomyces scabiei]]
-
[[Category: Derewenda, U]]
+
[[Category: Derewenda U]]
-
[[Category: Derewenda, Z S]]
+
[[Category: Derewenda ZS]]
-
[[Category: Patkar, S]]
+
[[Category: Patkar S]]
-
[[Category: Schottel, J L]]
+
[[Category: Schottel JL]]
-
[[Category: Swenson, L]]
+
[[Category: Swenson L]]
-
[[Category: Wei, Y]]
+
[[Category: Wei Y]]

Current revision

THE MOLECULAR MECHANISM OF ENANTIORECOGNITION BY ESTERASES

PDB ID 1esc

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools