3gt3

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (09:12, 30 October 2024) (edit) (undo)
 
(5 intermediate revisions not shown.)
Line 1: Line 1:
 +
==Structure of proteinase K with the mad triangle B3C==
==Structure of proteinase K with the mad triangle B3C==
-
<StructureSection load='3gt3' size='340' side='right' caption='[[3gt3]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
+
<StructureSection load='3gt3' size='340' side='right'caption='[[3gt3]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
-
<table><tr><td colspan='2'>[[3gt3]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Engyodontium_album Engyodontium album]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GT3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3GT3 FirstGlance]. <br>
+
<table><tr><td colspan='2'>[[3gt3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Parengyodontium_album Parengyodontium album]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3GT3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3GT3 FirstGlance]. <br>
-
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BRV:5-AMINO-2,4,6-TRIBROMOBENZENE-1,3-DICARBOXYLIC+ACID'>BRV</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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]] 1.5&#8491;</td></tr>
-
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3gt4|3gt4]], [[3e3d|3e3d]], [[3e3s|3e3s]], [[3e3t|3e3t]]</td></tr>
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BRV:5-AMINO-2,4,6-TRIBROMOBENZENE-1,3-DICARBOXYLIC+ACID'>BRV</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidase_K Peptidase K], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.64 3.4.21.64] </span></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=3gt3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gt3 OCA], [https://pdbe.org/3gt3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3gt3 RCSB], [https://www.ebi.ac.uk/pdbsum/3gt3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3gt3 ProSAT]</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=3gt3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3gt3 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3gt3 RCSB], [http://www.ebi.ac.uk/pdbsum/3gt3 PDBsum]</span></td></tr>
+
</table>
</table>
== Function ==
== Function ==
-
[[http://www.uniprot.org/uniprot/PRTK_TRIAL PRTK_TRIAL]] Hydrolyzes keratin at aromatic and hydrophobic residues.
+
[https://www.uniprot.org/uniprot/PRTK_PARAQ PRTK_PARAQ] Hydrolyzes keratin at aromatic and hydrophobic residues.
== 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/gt/3gt3_consurf.spt"</scriptWhenChecked>
+
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gt/3gt3_consurf.spt"</scriptWhenChecked>
-
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=3gt3 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
-
Obtaining phase information for the solution of macromolecular structures is still one of the bottlenecks in X-ray crystallography. 5-Amino-2,4,6-triiodoisophthalic acid (I3C), in which three covalently bound iodines form an equilateral triangle, was incorporated into proteins in order to obtain phases by single-wavelength anomalous dispersion (SAD). An improved binding capability compared with simple heavy-metal ions, ready availability, improved recognition of potential heavy-atom sites and low toxicity make I3C particularly suitable for experimental phasing.
+
Experimental phasing is an essential technique for the solution of macromolecular structures. Since many heavy-atom ion soaks suffer from nonspecific binding, a novel class of compounds has been developed that combines heavy atoms with functional groups for binding to proteins. The phasing tool 5-amino-2,4,6-tribromoisophthalic acid (B3C) contains three functional groups (two carboxylate groups and one amino group) that interact with proteins via hydrogen bonds. Three Br atoms suitable for anomalous dispersion phasing are arranged in an equilateral triangle and are thus readily identified in the heavy-atom substructure. B3C was incorporated into proteinase K and a multiwavelength anomalous dispersion (MAD) experiment at the Br K edge was successfully carried out. Radiation damage to the bromine-carbon bond was investigated. A comparison with the phasing tool I3C that contains three I atoms for single-wavelength anomalous dispersion (SAD) phasing was also carried out.
-
A magic triangle for experimental phasing of macromolecules.,Beck T, Krasauskas A, Gruene T, Sheldrick GM Acta Crystallogr D Biol Crystallogr. 2008 Nov;64(Pt 11):1179-82. Epub 2008, Oct 18. PMID:19020357<ref>PMID:19020357</ref>
+
The magic triangle goes MAD: experimental phasing with a bromine derivative.,Beck T, Gruene T, Sheldrick GM Acta Crystallogr D Biol Crystallogr. 2010 Apr;66(Pt 4):374-80. Epub 2010, Mar 24. PMID:20382990<ref>PMID:20382990</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
 +
<div class="pdbe-citations 3gt3" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
-
*[[Proteinase|Proteinase]]
+
*[[Proteinase 3D structures|Proteinase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
-
[[Category: Engyodontium album]]
+
[[Category: Large Structures]]
-
[[Category: Peptidase K]]
+
[[Category: Parengyodontium album]]
-
[[Category: Beck, T]]
+
[[Category: Beck T]]
-
[[Category: Gruene, T]]
+
[[Category: Gruene T]]
-
[[Category: Sheldrick, G M]]
+
[[Category: Sheldrick GM]]
-
[[Category: 5-amino-2]]
+
-
[[Category: 6-tribromoisophthalic acid]]
+
-
[[Category: 6-triiodoisophthalic acid]]
+
-
[[Category: B3c]]
+
-
[[Category: Disulfide bond]]
+
-
[[Category: Hydrolase]]
+
-
[[Category: I3c]]
+
-
[[Category: Mad triangle]]
+
-
[[Category: Magic triangle]]
+
-
[[Category: Metal-binding]]
+
-
[[Category: Phasing tool]]
+
-
[[Category: Protease]]
+
-
[[Category: Serine protease]]
+
-
[[Category: Zymogen]]
+

Current revision

Structure of proteinase K with the mad triangle B3C

PDB ID 3gt3

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools