2jkc: Difference between revisions

Latest revision as of 14:52, 13 December 2023

Crystal Structure of E346D of Tryptophan 7-Halogenase (PrnA)

Structural highlights

2jkc is a 1 chain structure with sequence from Pseudomonas fluorescens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.3Å
Ligands:	CL, FAD, TRP
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PRNA_PSEFL Involved in the biosynthesis of the antifungal antibiotic pyrrolnitrin. Catalyze the chlorination of tryptophan (Trp) at C7 position to yield 7-chloro-L-tryptophan (7-CLT). The reaction between FADH2, Cl-, and O2 generates the powerful oxidant HOCl, which is presumed to carry out the chlorination reaction. The reaction of HOCl with the active site Lys-79 generates a lysine chloramine, which plays a key role in directing regiospecific chlorination of substrate in this important class of biosynthetic enzymes. It is also able to use bromide ions to generate monobrominated Trp.^[1] ^[2] ^[3]

Evolutionary Conservation

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

References

↑ Keller S, Wage T, Hohaus K, Holzer M, Eichhorn E, van Pee KH. Purification and Partial Characterization of Tryptophan 7-Halogenase (PrnA) from Pseudomonas fluorescens This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through the Graduiertenkolleg "Struktur-Eigenschafts-Beziehungen bei Heterocyclen", the Environment and Climate Research and Technology Development Programme of the European Union, the Sachsische Staatsministerium fur Umwelt und Landesentwicklung, the Max-Buchner-Stiftung, and the Fonds der Chemischen Industrie. Samples of P. fluorescens BL915DeltaORF1-4 with pPEH14(prnA) and pPEH14(prnC) were obtained from Dr. J. M. Ligon, Novartis Agribusiness Biotechnology Research, Inc., Research Triangle, NC (USA) and NADH oxidase (from Thermus thermiphilus) from Prof. Helmut Erdmann, Fachhochschule Flensburg (Germany). Angew Chem Int Ed Engl. 2000 Jul 3;39(13):2300-2302. PMID:10941070
↑ Hammer PE, Hill DS, Lam ST, Van Pee KH, Ligon JM. Four genes from Pseudomonas fluorescens that encode the biosynthesis of pyrrolnitrin. Appl Environ Microbiol. 1997 Jun;63(6):2147-54. PMID:9172332
↑ Kirner S, Hammer PE, Hill DS, Altmann A, Fischer I, Weislo LJ, Lanahan M, van Pee KH, Ligon JM. Functions encoded by pyrrolnitrin biosynthetic genes from Pseudomonas fluorescens. J Bacteriol. 1998 Apr;180(7):1939-43. PMID:9537395

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OCA

[1] Keller S, Wage T, Hohaus K, Holzer M, Eichhorn E, van Pee KH. Purification and Partial Characterization of Tryptophan 7-Halogenase (PrnA) from Pseudomonas fluorescens This work was supported by the Deutsche Forschungsgemeinschaft (DFG) through the Graduiertenkolleg "Struktur-Eigenschafts-Beziehungen bei Heterocyclen", the Environment and Climate Research and Technology Development Programme of the European Union, the Sachsische Staatsministerium fur Umwelt und Landesentwicklung, the Max-Buchner-Stiftung, and the Fonds der Chemischen Industrie. Samples of P. fluorescens BL915DeltaORF1-4 with pPEH14(prnA) and pPEH14(prnC) were obtained from Dr. J. M. Ligon, Novartis Agribusiness Biotechnology Research, Inc., Research Triangle, NC (USA) and NADH oxidase (from Thermus thermiphilus) from Prof. Helmut Erdmann, Fachhochschule Flensburg (Germany). Angew Chem Int Ed Engl. 2000 Jul 3;39(13):2300-2302. PMID:10941070

[2] Hammer PE, Hill DS, Lam ST, Van Pee KH, Ligon JM. Four genes from Pseudomonas fluorescens that encode the biosynthesis of pyrrolnitrin. Appl Environ Microbiol. 1997 Jun;63(6):2147-54. PMID:9172332

[3] Kirner S, Hammer PE, Hill DS, Altmann A, Fischer I, Weislo LJ, Lanahan M, van Pee KH, Ligon JM. Functions encoded by pyrrolnitrin biosynthetic genes from Pseudomonas fluorescens. J Bacteriol. 1998 Apr;180(7):1939-43. PMID:9537395

[1]

[2]

[3]

@@ Line 1: / Line 1: @@
-{{Seed}}
-[[Image:2jkc.png|left|200px]]
-<!--
+==Crystal Structure of E346D of Tryptophan 7-Halogenase (PrnA)==
-The line below this paragraph, containing "STRUCTURE_2jkc", creates the "Structure Box" on the page.
+<StructureSection load='2jkc' size='340' side='right'caption='[[2jkc]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
-You may change the PDB parameter (which sets the PDB file loaded into the applet)
+== Structural highlights ==
-or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+<table><tr><td colspan='2'>[[2jkc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_fluorescens Pseudomonas fluorescens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JKC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2JKC FirstGlance]. <br>
-or leave the SCENE parameter empty for the default display.
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
--->
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</scene></td></tr>
-{{STRUCTURE_2jkc|  PDB=2jkc  |  SCENE=  }}
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2jkc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2jkc OCA], [https://pdbe.org/2jkc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2jkc RCSB], [https://www.ebi.ac.uk/pdbsum/2jkc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2jkc ProSAT]</span></td></tr>
+</table>
-===CRYSTAL STRUCTURE OF E346D OF TRYPTOPHAN 7-HALOGENASE (PRNA)===
+== Function ==
+[https://www.uniprot.org/uniprot/PRNA_PSEFL PRNA_PSEFL] Involved in the biosynthesis of the antifungal antibiotic pyrrolnitrin. Catalyze the chlorination of tryptophan (Trp) at C7 position to yield 7-chloro-L-tryptophan (7-CLT). The reaction between FADH2, Cl-, and O2 generates the powerful oxidant HOCl, which is presumed to carry out the chlorination reaction. The reaction of HOCl with the active site Lys-79 generates a lysine chloramine, which plays a key role in directing regiospecific chlorination of substrate in this important class of biosynthetic enzymes. It is also able to use bromide ions to generate monobrominated Trp.<ref>PMID:10941070</ref> <ref>PMID:9172332</ref> <ref>PMID:9537395</ref>
+== Evolutionary Conservation ==
-==About this Structure==
+[[Image:Consurf_key_small.gif|200px|right]]
-JKC is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JKC OCA].
+Check<jmol>
+  <jmolCheckbox>
-==Reference==
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jk/2jkc_consurf.spt"</scriptWhenChecked>
-<ref group="xtra">PMID:16195462</ref><references group="xtra"/>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
-[[Category: Naismith, J H.]]
+    <text>to colour the structure by Evolutionary Conservation</text>
-[[Category: Zhu, X.]]
+  </jmolCheckbox>
-[[Category: Enzymatic halogenation]]
+</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=2jkc ConSurf].
-[[Category: Flavin-dependent reaction mechanism]]
+<div style="clear:both"></div>
-[[Category: Oxidoreductase]]
+== References ==
-[[Category: Tryptophan halogenase]]
+<references/>
+__TOC__
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 13:53:16 2009''
+</StructureSection>
+[[Category: Large Structures]]
+[[Category: Pseudomonas fluorescens]]
+[[Category: Naismith JH]]
+[[Category: Zhu X]]

2jkc: Difference between revisions

Latest revision as of 14:52, 13 December 2023

Crystal Structure of E346D of Tryptophan 7-Halogenase (PrnA)

Structural highlights

Function

Evolutionary Conservation

References

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