3zky - Revision history

OCA at 11:04, 20 December 2023

OCA — Wed, 20 Dec 2023 11:04:41 GMT

←Older revision		Revision as of 11:04, 20 December 2023
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	<StructureSection load='3zky' size='340' side='right'caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>		<StructureSection load='3zky' size='340' side='right'caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/~~A._nidulans A.~~ nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_nidulans Aspergillus nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</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]] 1.45Å</td></tr>
-	~~<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3zku\|3zku]]</div></td></tr>~~	+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [https://pdbe.org/3zky PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [https://www.ebi.ac.uk/pdbsum/3zky PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3zky ProSAT]</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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [https://pdbe.org/3zky PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [https://www.ebi.ac.uk/pdbsum/3zky PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3zky ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/~~IPNS_EMENI IPNS_EMENI~~]~~] Removes, in~~ the ~~presence~~ of ~~oxygen~~, ~~4 hydrogen atoms from delta~~-L-(~~alpha~~-~~aminoadipyl~~)-L-cysteinyl-D-valine (ACV) to ~~form~~ the ~~azetidinone and thiazolidine rings of~~ isopenicillin.	+	[https://www.uniprot.org/uniprot/IPNA_EMENI IPNA_EMENI] Isopenicillin N synthase; part of the gene cluster that mediates the biosynthesis of penicillin, the world's most important antibiotic (PubMed:3319778, PubMed:11755401). IpnA catalyzes the cyclization of the tripeptide N-[(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine (LLD-ACV or ACV) to form isopenicillin N (IPN) that contains the beta-lactam nucleus (PubMed:3319778, PubMed:11755401, PubMed:28703303). The penicillin biosynthesis occurs via 3 enzymatic steps, the first corresponding to the production of the tripeptide N-[(5S)-5-amino-5-carboxypentanoyl]-L-cysteinyl-D-valine (LLD-ACV or ACV) by the NRPS acvA. The tripeptide ACV is then cyclized to isopenicillin N (IPN) by the isopenicillin N synthase ipnA that forms the beta-lactam nucleus. Finally, the alpha-aminoadipyl side chain is exchanged for phenylacetic acid by the isopenicillin N acyltransferase penDE to yield penicillin in the peroxisomal matrix (By similarity).[UniProtKB:P08703]<ref>PMID:11755401</ref> <ref>PMID:28703303</ref> <ref>PMID:3319778</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
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	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: A. nidulans]]	+	[[Category: Aspergillus nidulans]]
-	~~[[Category: Isopenicillin-N synthase~~]]	+
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Clifton~~, I J~~]]	+	[[Category: Clifton IJ]]
-	[[Category: Daruzzaman, A]]	+	[[Category: Daruzzaman A]]
-	[[Category: Rutledge~~, P J]]~~	+	[[Category: Rutledge PJ]]
-	~~[[Category: Antibiotic biosynthesis]]~~	+
-	~~[[Category: B-lactam antibiotic]]~~	+
-	~~[[Category: Oxidoreductase]]~~	+
-	~~[[Category: Oxygenase]]~~	+
-	~~[[Category: Penicillin biosynthesis]]~~	+
-	~~[[Category: Synthase~~]]	+

OCA at 05:50, 10 August 2022

OCA — Wed, 10 Aug 2022 05:50:08 GMT

←Older revision		Revision as of 05:50, 10 August 2022
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	<StructureSection load='3zky' size='340' side='right'caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>		<StructureSection load='3zky' size='340' side='right'caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/A._nidulans A. nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/A._nidulans A. nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>
-	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3zku\|3zku]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3zku\|3zku]]</div></td></tr>
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [~~http~~://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [~~http~~://pdbe.org/3zky PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/3zky PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=3zky ProSAT]</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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [https://pdbe.org/3zky PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [https://www.ebi.ac.uk/pdbsum/3zky PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3zky ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/IPNS_EMENI IPNS_EMENI]] Removes, in the presence of oxygen, 4 hydrogen atoms from delta-L-(alpha-aminoadipyl)-L-cysteinyl-D-valine (ACV) to form the azetidinone and thiazolidine rings of isopenicillin.	+	[[https://www.uniprot.org/uniprot/IPNS_EMENI IPNS_EMENI]] Removes, in the presence of oxygen, 4 hydrogen atoms from delta-L-(alpha-aminoadipyl)-L-cysteinyl-D-valine (ACV) to form the azetidinone and thiazolidine rings of isopenicillin.
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==

OCA at 16:30, 28 August 2019

OCA — Wed, 28 Aug 2019 16:30:16 GMT

←Older revision		Revision as of 16:30, 28 August 2019
Line 1:		Line 1:

	==Isopenicillin N synthase with substrate analogue AhCmC==		==Isopenicillin N synthase with substrate analogue AhCmC==
-	<StructureSection load='3zky' size='340' side='right' caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>	+	<StructureSection load='3zky' size='340' side='right'caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/A._nidulans A. nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>		<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/A._nidulans A. nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>
Line 29:		Line 29:
	[[Category: A. nidulans]]		[[Category: A. nidulans]]
	[[Category: Isopenicillin-N synthase]]		[[Category: Isopenicillin-N synthase]]
		+	[[Category: Large Structures]]
	[[Category: Clifton, I J]]		[[Category: Clifton, I J]]
	[[Category: Daruzzaman, A]]		[[Category: Daruzzaman, A]]

OCA at 08:51, 4 August 2016

OCA — Thu, 04 Aug 2016 08:51:54 GMT

←Older revision		Revision as of 08:51, 4 August 2016
Line 1:		Line 1:
		+
	==Isopenicillin N synthase with substrate analogue AhCmC==		==Isopenicillin N synthase with substrate analogue AhCmC==
	<StructureSection load='3zky' size='340' side='right' caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>		<StructureSection load='3zky' size='340' side='right' caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/~~Emericella_nidulans Emericella~~ nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/A._nidulans A. nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3zku\|3zku]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3zku\|3zku]]</td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [http://www.ebi.ac.uk/pdbsum/3zky PDBsum]</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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [http://pdbe.org/3zky PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [http://www.ebi.ac.uk/pdbsum/3zky PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3zky ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 18:		Line 19:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 3zky" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Isopenicillin N synthase\|Isopenicillin N synthase]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Emericella~~ nidulans]]	+	[[Category: A. nidulans]]
	[[Category: Isopenicillin-N synthase]]		[[Category: Isopenicillin-N synthase]]
	[[Category: Clifton, I J]]		[[Category: Clifton, I J]]

OCA at 07:54, 24 December 2014

OCA — Wed, 24 Dec 2014 07:54:08 GMT

←Older revision		Revision as of 07:54, 24 December 2014
Line 8:		Line 8:
	<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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [http://www.ebi.ac.uk/pdbsum/3zky PDBsum]</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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [http://www.ebi.ac.uk/pdbsum/3zky PDBsum]</span></td></tr>
	</table>		</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/IPNS_EMENI IPNS_EMENI]] Removes, in the presence of oxygen, 4 hydrogen atoms from delta-L-(alpha-aminoadipyl)-L-cysteinyl-D-valine (ACV) to form the azetidinone and thiazolidine rings of isopenicillin.
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==

OCA at 09:17, 21 December 2014

OCA — Sun, 21 Dec 2014 09:17:34 GMT

←Older revision		Revision as of 09:17, 21 December 2014
Line 1:		Line 1:
-	~~{{STRUCTURE_3zky~~\| ~~PDB~~=3zky \| ~~SCENE~~= }}	+	==Isopenicillin N synthase with substrate analogue AhCmC==
-	===Isopenicillin N synthase with ~~substrate analogue AhCmC~~===	+	<StructureSection load='3zky' size='340' side='right' caption='[[3zky]], [[Resolution\|resolution]] 1.45Å' scene=''>
-	~~{{ABSTRACT_PUBMED_23468426}}~~	+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3ZKY FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=WT4:N-[(5S)-5-AMINO-5-CARBOXYPENTANOYL]-L-HOMOCYSTEYL-S-METHYL-D-CYSTEINE'>WT4</scene></td></tr>
		+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[3zku\|3zku]]</td></tr>
		+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Isopenicillin-N_synthase Isopenicillin-N synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1] </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=3zky FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3zky OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3zky RCSB], [http://www.ebi.ac.uk/pdbsum/3zky PDBsum]</span></td></tr>
		+	</table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	Isopenicillin N synthase (IPNS) converts the linear tripeptide delta-(L-alpha-aminoadipoyl)-L-cysteinyl-D-valine (ACV) into bicyclic isopenicillin N (IPN) in the central step in the biosynthesis of penicillin and cephalosporin antibiotics. Solution-phase incubation experiments have shown that IPNS turns over analogues with a diverse range of side chains in the third (valinyl) position of the substrate, but copes less well with changes in the second (cysteinyl) residue. IPNS thus converts the homologated tripeptides delta-(L-alpha-aminoadipoyl)-L-homocysteinyl-D-valine (AhCV) and delta-(L-alpha-aminoadipoyl)-L-homocysteinyl-D-allylglycine (AhCaG) into monocyclic hydroxy-lactam products; this suggests that the additional methylene unit in these substrates induces conformational changes that preclude second ring closure after initial lactam formation. To investigate this and solution-phase results with other tripeptides delta-(L-alpha-aminoadipoyl)-L-homocysteinyl-D-Xaa, we have crystallised AhCV and delta-(L-alpha-aminoadipoyl)-L-homocysteinyl-D-S-methylcysteine (AhCmC) with IPNS and solved crystal structures for the resulting complexes. The IPNS:Fe :AhCV complex shows diffuse electron density for several regions of the substrate, revealing considerable conformational freedom within the active site. The substrate is more clearly resolved in the IPNS:Fe :AhCmC complex, by virtue of thioether coordination to iron. AhCmC occupies two distinct conformations, both distorted relative to the natural substrate ACV, in order to accommodate the extra methylene group in the second residue. Attempts to turn these substrates over within crystalline IPNS using hyperbaric oxygenation give rise to product mixtures.

-	~~==Function==~~	+	The Interaction of Isopenicillin N Synthase with Homologated Substrate Analogues delta-(L-alpha-Aminoadipoyl)-L-homocysteinyl-D-Xaa Characterised by Protein Crystallography.,Daruzzaman A, Clifton IJ, Adlington RM, Baldwin JE, Rutledge PJ Chembiochem. 2013 Mar 18;14(5):599-606. doi: 10.1002/cbic.201200728. Epub 2013, Mar 6. PMID:23468426<ref>PMID:23468426</ref>
-	~~[[http://www.uniprot.org/uniprot/IPNS_EMENI IPNS_EMENI]] Removes, in the presence~~ of ~~oxygen, 4 hydrogen atoms from~~ delta-L-(alpha-~~aminoadipyl~~)-L-~~cysteinyl~~-D-~~valine~~ (~~ACV~~) ~~to form the azetidinone and thiazolidine rings of isopenicillin~~.	+

-	==~~About this Structure~~==	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	~~[[3zky]] is a 1 chain structure with sequence from [http:~~//~~en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA].~~	+	</div>
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
	[[Category: Emericella nidulans]]		[[Category: Emericella nidulans]]
	[[Category: Isopenicillin-N synthase]]		[[Category: Isopenicillin-N synthase]]
-	[[Category: Clifton, I J.]]	+	[[Category: Clifton, I J]]
-	[[Category: Daruzzaman, A.]]	+	[[Category: Daruzzaman, A]]
-	[[Category: Rutledge, P J.]]	+	[[Category: Rutledge, P J]]
	[[Category: Antibiotic biosynthesis]]		[[Category: Antibiotic biosynthesis]]
	[[Category: B-lactam antibiotic]]		[[Category: B-lactam antibiotic]]

OCA at 21:49, 10 April 2013

OCA — Wed, 10 Apr 2013 21:49:06 GMT

←Older revision		Revision as of 21:49, 10 April 2013
Line 1:		Line 1:
-	~~'''Unreleased structure'''~~	+	{{STRUCTURE_3zky\| PDB=3zky \| SCENE= }}
		+	===Isopenicillin N synthase with substrate analogue AhCmC===
		+	{{ABSTRACT_PUBMED_23468426}}

-	~~The entry 3zky is ON HOLD until Paper Publication~~	+	==Function==
		+	[[http://www.uniprot.org/uniprot/IPNS_EMENI IPNS_EMENI]] Removes, in the presence of oxygen, 4 hydrogen atoms from delta-L-(alpha-aminoadipyl)-L-cysteinyl-D-valine (ACV) to form the azetidinone and thiazolidine rings of isopenicillin.

-	~~Authors~~: ~~Daruzzaman, A~~., Clifton, I.J., Rutledge, P.J.	+	==About this Structure==
-		+	[[3zky]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ZKY OCA].
-	~~Description~~: ~~Isopenicillin N synthase with substrate analogue AhCmC~~	+	[[Category: Emericella nidulans]]
		+	[[Category: Isopenicillin-N synthase]]
		+	[[Category: Clifton, I J.]]
		+	[[Category: Daruzzaman, A.]]
		+	[[Category: Rutledge, P J.]]
		+	[[Category: Antibiotic biosynthesis]]
		+	[[Category: B-lactam antibiotic]]
		+	[[Category: Oxidoreductase]]
		+	[[Category: Oxygenase]]
		+	[[Category: Penicillin biosynthesis]]
		+	[[Category: Synthase]]

OCA: Protected "3zky" [edit=sysop:move=sysop]

OCA — Wed, 06 Feb 2013 12:15:45 GMT

Protected "3zky" [edit=sysop:move=sysop]

←Older revision

Revision as of 12:15, 6 February 2013

OCA: New page: '''Unreleased structure''' The entry 3zky is ON HOLD until Paper Publication Authors: Daruzzaman, A., Clifton, I.J., Rutledge, P.J. Description: Isopenicillin N synthase with substrate...

OCA — Wed, 06 Feb 2013 12:15:44 GMT

New page: '''Unreleased structure''' The entry 3zky is ON HOLD until Paper Publication Authors: Daruzzaman, A., Clifton, I.J., Rutledge, P.J. Description: Isopenicillin N synthase with substrate...

New page

'''Unreleased structure'''

The entry 3zky is ON HOLD until Paper Publication

Authors: Daruzzaman, A., Clifton, I.J., Rutledge, P.J.

Description: Isopenicillin N synthase with substrate analogue AhCmC