This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1w3v
From Proteopedia
(New page: 200px<br /> <applet load="1w3v" size="450" color="white" frame="true" align="right" spinBox="true" caption="1w3v, resolution 1.40Å" /> '''ISOPENICILLIN N SYN...) |
|||
| Line 8: | Line 8: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1W3V is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]] with FE2 and MDZ as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.21.3.1 1.21.3.1]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1W3V OCA]]. | + | 1W3V is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Emericella_nidulans Emericella nidulans]] with FE2 and MDZ as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[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]]. Structure known Active Site: AC1. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1W3V OCA]]. |
==Reference== | ==Reference== | ||
Unexpected oxidation of a depsipeptide substrate analogue in crystalline isopenicillin N synthase., Daruzzaman A, Clifton IJ, Adlington RM, Baldwin JE, Rutledge PJ, Chembiochem. 2006 Feb;7(2):351-8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16444759 16444759] | Unexpected oxidation of a depsipeptide substrate analogue in crystalline isopenicillin N synthase., Daruzzaman A, Clifton IJ, Adlington RM, Baldwin JE, Rutledge PJ, Chembiochem. 2006 Feb;7(2):351-8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=16444759 16444759] | ||
[[Category: Emericella nidulans]] | [[Category: Emericella nidulans]] | ||
| + | [[Category: Isopenicillin-N synthase]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
[[Category: Clifton, I.J.]] | [[Category: Clifton, I.J.]] | ||
| Line 27: | Line 28: | ||
[[Category: penicillin biosynthesis]] | [[Category: penicillin biosynthesis]] | ||
| - | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 11:41:20 2007'' |
Revision as of 09:36, 30 October 2007
|
ISOPENICILLIN N SYNTHASE D-(L-A-AMINOADIPOYL)-(3R)-METHYL-L-CYSTEINE D-A-HYDROXYISOVALERYL ESTER COMPLEX (ANAEROBIC)
Overview
Isopenicillin N synthase (IPNS) is a non-heme iron(ii)-dependent oxidase, that is central to penicillin biosynthesis. Herein, we report mechanistic, studies of the IPNS reaction in the crystalline state, using the substrate, analogue delta-(L-alpha-aminoadipoyl)-(3R)-methyl-L-cysteine, D-alpha-hydroxyisovaleryl ester (AmCOV) to probe the early stages of the, catalytic cycle. The X-ray crystal structure of the anaerobic, IPNS:Fe(II):AmCOV complex was solved to 1.40 A resolution, and it reveals, several subtle differences in the active site relative to the complex of, the enzyme with its natural substrate. The crystalline IPNS:Fe(II):AmCOV, complex was then exposed to oxygen gas at high pressure; this brought, about reaction to give what appears to be a hydroxymethyl/ene-thiol, product. A ... [(full description)]
About this Structure
1W3V is a [Single protein] structure of sequence from [Emericella nidulans] with FE2 and MDZ as [ligands]. Active as [Isopenicillin-N synthase], with EC number [1.21.3.1]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].
Reference
Unexpected oxidation of a depsipeptide substrate analogue in crystalline isopenicillin N synthase., Daruzzaman A, Clifton IJ, Adlington RM, Baldwin JE, Rutledge PJ, Chembiochem. 2006 Feb;7(2):351-8. PMID:16444759
Page seeded by OCA on Tue Oct 30 11:41:20 2007
