|
|
| Line 3: |
Line 3: |
| | <StructureSection load='1p33' size='340' side='right'caption='[[1p33]], [[Resolution|resolution]] 2.86Å' scene=''> | | <StructureSection load='1p33' size='340' side='right'caption='[[1p33]], [[Resolution|resolution]] 2.86Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1p33]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Leita Leita]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P33 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1P33 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1p33]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Leishmania_tarentolae Leishmania tarentolae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P33 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P33 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MTX:METHOTREXATE'>MTX</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</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]] 2.86Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1e7w|1e7w]], [[1e92|1e92]]</div></td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MTX:METHOTREXATE'>MTX</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PTR1 OR LTDH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5689 LEITA])</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=1p33 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p33 OCA], [https://pdbe.org/1p33 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p33 RCSB], [https://www.ebi.ac.uk/pdbsum/1p33 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p33 ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Pteridine_reductase Pteridine reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.5.1.33 1.5.1.33] </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=1p33 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p33 OCA], [http://pdbe.org/1p33 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1p33 RCSB], [http://www.ebi.ac.uk/pdbsum/1p33 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1p33 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/PTR1_LEITA PTR1_LEITA]] Exhibits a NADPH-dependent biopterin reductase activity. Has good activity with folate and significant activity with dihydrofolate and dihydrobiopterin, but not with quinonoid dihydrobiopterin. Confers resistance to methotrexate (MTX). | + | [https://www.uniprot.org/uniprot/PTR1_LEITA PTR1_LEITA] Exhibits a NADPH-dependent biopterin reductase activity. Has good activity with folate and significant activity with dihydrofolate and dihydrobiopterin, but not with quinonoid dihydrobiopterin. Confers resistance to methotrexate (MTX). |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Line 39: |
Line 37: |
| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Leita]] | + | [[Category: Leishmania tarentolae]] |
| - | [[Category: Pteridine reductase]]
| + | [[Category: Bray T]] |
| - | [[Category: Bray, T]] | + | [[Category: Ferre RA]] |
| - | [[Category: Ferre, R A]] | + | [[Category: Matthews D]] |
| - | [[Category: Matthews, D]] | + | [[Category: Ouellette M]] |
| - | [[Category: Ouellette, M]] | + | [[Category: Varughese KI]] |
| - | [[Category: Varughese, K I]] | + | [[Category: Whiteley JM]] |
| - | [[Category: Whiteley, J M]] | + | [[Category: Zhao H]] |
| - | [[Category: Zhao, H]] | + | [[Category: Zhao M]] |
| - | [[Category: Zhao, M]] | + | |
| - | [[Category: Complex]]
| + | |
| - | [[Category: Mtx]]
| + | |
| - | [[Category: Nadph]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| Structural highlights
Function
PTR1_LEITA Exhibits a NADPH-dependent biopterin reductase activity. Has good activity with folate and significant activity with dihydrofolate and dihydrobiopterin, but not with quinonoid dihydrobiopterin. Confers resistance to methotrexate (MTX).
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
The protozoan parasites Leishmania utilize a pteridine-reducing enzyme, pteridine reductase (PTR1), to bypass antifolate inhibition. The crystal structure of PTR1 from L. tarentolae has been solved as a binary complex with NADPH at 2.8 A resolution. The structure was solved by molecular-replacement techniques using the recently reported L. major PTR1 structure as a search model. Comparisons of the present structure with the L. major PTR1 allowed us to identify regions of flexibility in the molecule. PTR1 is a member of the growing family of short-chain dehydrogenases (SDR) which share the characteristic Tyr(Xaa)(3)Lys motif in the vicinity of the active site. The functional enzyme is a tetramer and the crystallographic asymmetric unit contains a tetramer with 222 point-group symmetry.
Structure of pteridine reductase (PTR1) from Leishmania tarentolae.,Zhao H, Bray T, Ouellette M, Zhao M, Ferre RA, Matthews D, Whiteley JM, Varughese KI Acta Crystallogr D Biol Crystallogr. 2003 Sep;59(Pt 9):1539-44. Epub 2003, Aug 19. PMID:12925782[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Zhao H, Bray T, Ouellette M, Zhao M, Ferre RA, Matthews D, Whiteley JM, Varughese KI. Structure of pteridine reductase (PTR1) from Leishmania tarentolae. Acta Crystallogr D Biol Crystallogr. 2003 Sep;59(Pt 9):1539-44. Epub 2003, Aug 19. PMID:12925782
|
