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2ivi

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Revision as of 10:26, 11 September 2015

Isopenicillin N Synthase From Aspergillus Nidulans (Anaerobic Ac- methyl-cyclopropylglycine Fe Complex)

Structural highlights

2ivi is a 1 chain structure with sequence from A. nidulans. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	1bk0, 1blz, 1hb1, 1hb2, 1hb3, 1hb4, 1ips, 1obn, 1oc1, 1odm, 1odn, 1qiq, 1qje, 1qjf, 1uzw, 1w03, 1w04, 1w05, 1w06, 1w3v, 1w3x, 2bjs, 2bu9, 2ivj
Activity:	Isopenicillin-N synthase, with EC number 1.21.3.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[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.

Evolutionary Conservation

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

Publication Abstract from PubMed

Isopenicillin N synthase (IPNS), a non-heme iron oxidase central to penicillin and cephalosporin biosynthesis, catalyzes an energetically demanding chemical transformation to produce isopenicillin N from the tripeptide delta-(l-alpha-aminoadipoyl)-l-cysteinyl-d-valine (ACV). We describe the synthesis of two cyclopropyl-containing tripeptide analogues, delta-(l-alpha-aminoadipoyl)-l-cysteinyl-beta-methyl-d-cyclopropylglycine and delta-(l-alpha-aminoadipoyl)-l-cysteinyl-d-cyclopropylglycine, designed as probes for the mechanism of IPNS. We have solved the X-ray crystal structures of these substrates in complex with IPNS and propose a revised mechanism for the IPNS-mediated turnover of these compounds. Relative to the previously determined IPNS-Fe(II)-ACV structure, key differences exist in substrate orientation and water occupancy, which allow for an explanation of the differences in reactivity of these substrates.

Interactions of isopenicillin N synthase with cyclopropyl-containing substrate analogues reveal new mechanistic insight.,Howard-Jones AR, Elkins JM, Clifton IJ, Roach PL, Adlington RM, Baldwin JE, Rutledge PJ Biochemistry. 2007 Apr 24;46(16):4755-62. Epub 2007 Mar 31. PMID:17397141^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Howard-Jones AR, Elkins JM, Clifton IJ, Roach PL, Adlington RM, Baldwin JE, Rutledge PJ. Interactions of isopenicillin N synthase with cyclopropyl-containing substrate analogues reveal new mechanistic insight. Biochemistry. 2007 Apr 24;46(16):4755-62. Epub 2007 Mar 31. PMID:17397141 doi:10.1021/bi062314q

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2ivi"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1bk0|1bk0]], [[1blz|1blz]], [[1hb1|1hb1]], [[1hb2|1hb2]], [[1hb3|1hb3]], [[1hb4|1hb4]], [[1ips|1ips]], [[1obn|1obn]], [[1oc1|1oc1]], [[1odm|1odm]], [[1odn|1odn]], [[1qiq|1qiq]], [[1qje|1qje]], [[1qjf|1qjf]], [[1uzw|1uzw]], [[1w03|1w03]], [[1w04|1w04]], [[1w05|1w05]], [[1w06|1w06]], [[1w3v|1w3v]], [[1w3x|1w3x]], [[2bjs|2bjs]], [[2bu9|2bu9]], [[2ivj|2ivj]]</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=2ivi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ivi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ivi RCSB], [http://www.ebi.ac.uk/pdbsum/2ivi 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=2ivi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ivi OCA], [http://pdbe.org/2ivi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ivi RCSB], [http://www.ebi.ac.uk/pdbsum/2ivi PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2ivi" style="background-color:#fffaf0;"></div>
 ==See Also==

2ivi

From Proteopedia

Revision as of 10:26, 11 September 2015

Isopenicillin N Synthase From Aspergillus Nidulans (Anaerobic Ac- methyl-cyclopropylglycine Fe Complex)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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