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| | <StructureSection load='6l1g' size='340' side='right'caption='[[6l1g]], [[Resolution|resolution]] 2.20Å' scene=''> | | <StructureSection load='6l1g' size='340' side='right'caption='[[6l1g]], [[Resolution|resolution]] 2.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6l1g]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Syny3 Syny3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6L1G OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6L1G FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6l1g]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Synechocystis_sp._PCC_6803_substr._Kazusa Synechocystis sp. PCC 6803 substr. Kazusa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6L1G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6L1G FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.2Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">por, pcr, slr0506 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1111708 SYNY3])</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protochlorophyllide_reductase Protochlorophyllide reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.3.1.33 1.3.1.33] </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=6l1g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6l1g OCA], [https://pdbe.org/6l1g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6l1g RCSB], [https://www.ebi.ac.uk/pdbsum/6l1g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6l1g ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6l1g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6l1g OCA], [http://pdbe.org/6l1g PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6l1g RCSB], [http://www.ebi.ac.uk/pdbsum/6l1g PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6l1g ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/POR_SYNY3 POR_SYNY3]] Phototransformation of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). | + | [https://www.uniprot.org/uniprot/POR_SYNY3 POR_SYNY3] Phototransformation of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Protochlorophyllide reductase]] | + | [[Category: Synechocystis sp. PCC 6803 substr. Kazusa]] |
| - | [[Category: Syny3]]
| + | [[Category: Dong C]] |
| - | [[Category: Dong, C]] | + | [[Category: Liu L]] |
| - | [[Category: Liu, L]] | + | [[Category: Wang X]] |
| - | [[Category: Wang, X]] | + | |
| - | [[Category: Chlorophyll biosynthesis]]
| + | |
| - | [[Category: Nadph]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| - | [[Category: Photocatalysis]]
| + | |
| Structural highlights
Function
POR_SYNY3 Phototransformation of protochlorophyllide (Pchlide) to chlorophyllide (Chlide).
Publication Abstract from PubMed
The reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide) is the penultimate step of chlorophyll biosynthesis. In oxygenic photosynthetic bacteria, algae, and plants, this reaction can be catalyzed by the light-dependent Pchlide oxidoreductase (LPOR), a member of the short-chain dehydrogenase superfamily sharing a conserved Rossmann fold for NAD(P)H binding and the catalytic activity. Whereas modeling and simulation approaches have been used to study the catalytic mechanism of this light-driven reaction, key details of the LPOR structure remain unclear. We determined the crystal structures of LPOR from two cyanobacteria, Synechocystis sp. PCC 6803 and Thermosynechococcus elongatus Structural analysis defines the LPOR core fold, outlines the LPOR-NADPH interaction network, identifies the residues forming the substrate cavity and the proton-relay path, and reveals the role of the LPOR-specific loop. These findings provide a basis for understanding the structure-function relationships of the light-driven Pchlide reduction.
Crystal structures of cyanobacterial light-dependent protochlorophyllide oxidoreductase.,Dong CS, Zhang WL, Wang Q, Li YS, Wang X, Zhang M, Liu L Proc Natl Acad Sci U S A. 2020 Mar 31. pii: 1920244117. doi:, 10.1073/pnas.1920244117. PMID:32234783[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Dong CS, Zhang WL, Wang Q, Li YS, Wang X, Zhang M, Liu L. Crystal structures of cyanobacterial light-dependent protochlorophyllide oxidoreductase. Proc Natl Acad Sci U S A. 2020 Mar 31. pii: 1920244117. doi:, 10.1073/pnas.1920244117. PMID:32234783 doi:http://dx.doi.org/10.1073/pnas.1920244117
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