1opm

From Proteopedia

(Difference between revisions)

Revision as of 07:56, 15 February 2018

OXIDIZED (CU2+) PEPTIDYLGLYCINE ALPHA-HYDROXYLATING MONOOXYGENASE (PHM) WITH BOUND SUBSTRATE

Structural highlights

1opm is a 1 chain structure with sequence from Buffalo rat. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , ,
Related:	1phm, 3phm
Activity:	Peptidylglycine monooxygenase, with EC number 1.14.17.3
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[AMD_RAT] Bifunctional enzyme that catalyzes 2 sequential steps in C-terminal alpha-amidation of peptides. The monooxygenase part produces an unstable peptidyl(2-hydroxyglycine) intermediate that is dismutated to glyoxylate and the corresponding desglycine peptide amide by the lyase part. C-terminal amidation of peptides such as neuropeptides is essential for full biological activity.

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

Peptide amidation is a ubiquitous posttranslational modification of bioactive peptides. Peptidylglycine alpha-hydroxylating monooxygenase (PHM; EC 1.14.17.3), the enzyme that catalyzes the first step of this reaction, is composed of two domains, each of which binds one copper atom. The coppers are held 11 A apart on either side of a solvent-filled interdomain cleft, and the PHM reaction requires electron transfer between these sites. A plausible mechanism for electron transfer might involve interdomain motion to decrease the distance between the copper atoms. Our experiments show that PHM catalytic core (PHMcc) is enzymatically active in the crystal phase, where interdomain motion is not possible. Instead, structures of two states relevant to catalysis indicate that water, substrate and active site residues may provide an electron transfer pathway that exists only during the PHM catalytic cycle.

Substrate-mediated electron transfer in peptidylglycine alpha-hydroxylating monooxygenase.,Prigge ST, Kolhekar AS, Eipper BA, Mains RE, Amzel LM Nat Struct Biol. 1999 Oct;6(10):976-83. PMID:10504734^[1]

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

References

↑ Prigge ST, Kolhekar AS, Eipper BA, Mains RE, Amzel LM. Substrate-mediated electron transfer in peptidylglycine alpha-hydroxylating monooxygenase. Nat Struct Biol. 1999 Oct;6(10):976-83. PMID:10504734 doi:10.1038/13351

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1opm"

@@ Line 1: / Line 1: @@
 ==OXIDIZED (CU2+) PEPTIDYLGLYCINE ALPHA-HYDROXYLATING MONOOXYGENASE (PHM) WITH BOUND SUBSTRATE==
 <StructureSection load='1opm' size='340' side='right' caption='[[1opm]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1phm|1phm]], [[3phm|3phm]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Peptidylglycine_monooxygenase Peptidylglycine monooxygenase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.17.3 1.14.17.3] </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=1opm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1opm OCA], [http://pdbe.org/1opm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1opm RCSB], [http://www.ebi.ac.uk/pdbsum/1opm 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=1opm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1opm OCA], [http://pdbe.org/1opm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1opm RCSB], [http://www.ebi.ac.uk/pdbsum/1opm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1opm ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/op/1opm_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/op/1opm_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1opm

From Proteopedia

Revision as of 07:56, 15 February 2018

OXIDIZED (CU2+) PEPTIDYLGLYCINE ALPHA-HYDROXYLATING MONOOXYGENASE (PHM) WITH BOUND SUBSTRATE

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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