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2apg

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==The structure of tryptophan 7-halogenase (PrnA)suggests a mechanism for regioselective chlorination==
==The structure of tryptophan 7-halogenase (PrnA)suggests a mechanism for regioselective chlorination==
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<StructureSection load='2apg' size='340' side='right' caption='[[2apg]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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<StructureSection load='2apg' size='340' side='right'caption='[[2apg]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2apg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_fluorescens_liquefaciens"_flugge_1886 "bacillus fluorescens liquefaciens" flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2APG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2APG FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2apg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/"bacillus_fluorescens_liquefaciens"_flugge_1886 "bacillus fluorescens liquefaciens" flugge 1886]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2APG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2APG FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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</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=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">prnA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=294 "Bacillus fluorescens liquefaciens" Flugge 1886])</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">prnA ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=294 "Bacillus fluorescens liquefaciens" Flugge 1886])</td></tr>
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<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=2apg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2apg OCA], [http://pdbe.org/2apg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2apg RCSB], [http://www.ebi.ac.uk/pdbsum/2apg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2apg ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2apg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2apg OCA], [https://pdbe.org/2apg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2apg RCSB], [https://www.ebi.ac.uk/pdbsum/2apg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2apg ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://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>
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[[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 ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</StructureSection>
</StructureSection>
[[Category: Bacillus fluorescens liquefaciens flugge 1886]]
[[Category: Bacillus fluorescens liquefaciens flugge 1886]]
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[[Category: Large Structures]]
[[Category: Dong, C]]
[[Category: Dong, C]]
[[Category: Flecks, S]]
[[Category: Flecks, S]]

Revision as of 08:35, 27 January 2021

The structure of tryptophan 7-halogenase (PrnA)suggests a mechanism for regioselective chlorination

PDB ID 2apg

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