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| | <StructureSection load='3cz4' size='340' side='right'caption='[[3cz4]], [[Resolution|resolution]] 1.70Å' scene=''> | | <StructureSection load='3cz4' size='340' side='right'caption='[[3cz4]], [[Resolution|resolution]] 1.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3cz4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CZ4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CZ4 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3cz4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3CZ4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3CZ4 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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]] 1.7Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1rmq|1rmq]], [[1rmy|1rmy]], [[1n8n|1n8n]], [[1n9k|1n9k]], [[2g1a|2g1a]], [[2hf7|2hf7]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">aphA, napA, yjbP, b4055, JW4015 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Acid_phosphatase Acid phosphatase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.2 3.1.3.2] </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=3cz4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cz4 OCA], [https://pdbe.org/3cz4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cz4 RCSB], [https://www.ebi.ac.uk/pdbsum/3cz4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cz4 ProSAT]</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=3cz4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3cz4 OCA], [https://pdbe.org/3cz4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3cz4 RCSB], [https://www.ebi.ac.uk/pdbsum/3cz4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3cz4 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/APHA_ECOLI APHA_ECOLI]] Dephosphorylates several organic phosphate monoesters including 3'- and 5'-nucleotides, 2'-deoxy-5'-nucleotides, pNPP, phenyl phosphate, glycerol 2-phosphate, ribose 5-phosphate, O-phospho-L-amino acids and phytic acid, showing the highest activity with aryl phosphoesters (pNPP, phenyl phosphate and O-phospho-L-tyrosine), and to a lesser extent with 3'- and 5'-nucleotides. No activity toward ATP, phosphodiesters, glycerol-1-phosphate, glucose 1-phosphate, glucose 6-phosphate, NADP, GTP or 3',5'-cAMP, ADP or ATP. Also has a phosphotransferase activity catalyzing the transfer of low-energy phosphate groups from organic phosphate monoesters to free hydroxyl groups of various organic compounds. Capable of transferring phosphate from either pNPP or UMP to adenosine or uridine. Does not exhibit nucleotide phosphomutase activity.<ref>PMID:9011040</ref> <ref>PMID:16297670</ref>
| + | [https://www.uniprot.org/uniprot/APHA_ECOLI APHA_ECOLI] Dephosphorylates several organic phosphate monoesters including 3'- and 5'-nucleotides, 2'-deoxy-5'-nucleotides, pNPP, phenyl phosphate, glycerol 2-phosphate, ribose 5-phosphate, O-phospho-L-amino acids and phytic acid, showing the highest activity with aryl phosphoesters (pNPP, phenyl phosphate and O-phospho-L-tyrosine), and to a lesser extent with 3'- and 5'-nucleotides. No activity toward ATP, phosphodiesters, glycerol-1-phosphate, glucose 1-phosphate, glucose 6-phosphate, NADP, GTP or 3',5'-cAMP, ADP or ATP. Also has a phosphotransferase activity catalyzing the transfer of low-energy phosphate groups from organic phosphate monoesters to free hydroxyl groups of various organic compounds. Capable of transferring phosphate from either pNPP or UMP to adenosine or uridine. Does not exhibit nucleotide phosphomutase activity.<ref>PMID:9011040</ref> <ref>PMID:16297670</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Acid phosphatase]] | + | [[Category: Escherichia coli K-12]] |
| - | [[Category: Ecoli]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Benvenuti, M]] | + | [[Category: Benvenuti M]] |
| - | [[Category: Cappelletti, E]] | + | [[Category: Cappelletti E]] |
| - | [[Category: Lentini, G]] | + | [[Category: Lentini G]] |
| - | [[Category: Leone, R]] | + | [[Category: Leone R]] |
| - | [[Category: Mangani, S]] | + | [[Category: Mangani S]] |
| - | [[Category: Thaller, M C]] | + | [[Category: Thaller MC]] |
| - | [[Category: Acid phosphatase/phosphotransferase]]
| + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Magnesium]]
| + | |
| - | [[Category: Metal-binding]]
| + | |
| - | [[Category: Metallo phosphatase]]
| + | |
| - | [[Category: Periplasm]]
| + | |
| Structural highlights
Function
APHA_ECOLI Dephosphorylates several organic phosphate monoesters including 3'- and 5'-nucleotides, 2'-deoxy-5'-nucleotides, pNPP, phenyl phosphate, glycerol 2-phosphate, ribose 5-phosphate, O-phospho-L-amino acids and phytic acid, showing the highest activity with aryl phosphoesters (pNPP, phenyl phosphate and O-phospho-L-tyrosine), and to a lesser extent with 3'- and 5'-nucleotides. No activity toward ATP, phosphodiesters, glycerol-1-phosphate, glucose 1-phosphate, glucose 6-phosphate, NADP, GTP or 3',5'-cAMP, ADP or ATP. Also has a phosphotransferase activity catalyzing the transfer of low-energy phosphate groups from organic phosphate monoesters to free hydroxyl groups of various organic compounds. Capable of transferring phosphate from either pNPP or UMP to adenosine or uridine. Does not exhibit nucleotide phosphomutase activity.[1] [2]
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
AphA is a magnesium-dependent, bacterial class B acid phosphatase that catalyzes the hydrolysis of a variety of phosphoester substrates and belongs to the DDDD superfamily of phosphohydrolases. The recently reported crystal structure of AphA from Escherichia coli has revealed the quaternary structure of the enzyme together with hints about its catalytic mechanism. The present work reports the crystal structures of AphA from E. coli in complex with substrate, transition-state, and intermediate analogues. The structures provide new insights into the mechanism of the enzyme and allow a revision of some aspects of the previously proposed mechanism that have broader implications for all the phosphatases of the DDDD superfamily.
Structural insights into the catalytic mechanism of the bacterial class B phosphatase AphA belonging to the DDDD superfamily of phosphohydrolases.,Leone R, Cappelletti E, Benvenuti M, Lentini G, Thaller MC, Mangani S J Mol Biol. 2008 Dec 12;384(2):478-88. Epub 2008 Sep 27. PMID:18845157[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Thaller MC, Schippa S, Bonci A, Cresti S, Rossolini GM. Identification of the gene (aphA) encoding the class B acid phosphatase/phosphotransferase of Escherichia coli MG1655 and characterization of its product. FEMS Microbiol Lett. 1997 Jan 15;146(2):191-8. PMID:9011040
- ↑ Passariello C, Forleo C, Micheli V, Schippa S, Leone R, Mangani S, Thaller MC, Rossolini GM. Biochemical characterization of the class B acid phosphatase (AphA) of Escherichia coli MG1655. Biochim Biophys Acta. 2006 Jan;1764(1):13-9. Epub 2005 Nov 2. PMID:16297670 doi:http://dx.doi.org/10.1016/j.bbapap.2005.08.028
- ↑ Leone R, Cappelletti E, Benvenuti M, Lentini G, Thaller MC, Mangani S. Structural insights into the catalytic mechanism of the bacterial class B phosphatase AphA belonging to the DDDD superfamily of phosphohydrolases. J Mol Biol. 2008 Dec 12;384(2):478-88. Epub 2008 Sep 27. PMID:18845157 doi:10.1016/j.jmb.2008.09.050
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