1z5g

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of Salmonella typhimurium AphA protein

Structural highlights

1z5g is a 4 chain structure with sequence from Salmonella enterica subsp. enterica serovar Typhimurium. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

APHA_SALTM Dephosphorylates several organic phosphate monoesters. 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 (Probable).^[1]

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 Salmonella typhimurium class B nonspecific acid phosphatase (AphA protein) belongs to the L2-haloacid dehalogenase superfamily. The conserved Lys-154 interacts with substrate phosphate, nucleophile Asp-46, and Asp-173 in the wild-type AphA protein. Asp-173 also interacts with Mg(II) water ligand and with main-chain amide of loop-4. We report here the mutational analysis of Lys-154 and Asp-173, the crystal structures of the K154N and K154R mutants, and the results of electrostatic potential calculations. The K154N, K154R and D173N mutants display significant reduction in the phosphatase activity. Lys-154 may not be responsible for a juxtaposition of the substrate phosphate and the aspartyl nucleophile, but has an hitherto unknown functional role of rendering the substrate phosphorous atom electron deficient. Nearly 10,000-fold increase in the K(d) value for dissociation of the cofactor Mg(II) observed for the D173N mutant correlates well with theoretically estimated change in the binding free energy of Mg(II).

Structural and mutational analyses reveal the functional role of active-site Lys-154 and Asp-173 of Salmonella typhimurium AphA protein.,Makde RD, Gupta GD, Mahajan SK, Kumar V Arch Biochem Biophys. 2007 Aug 1;464(1):70-9. Epub 2007 May 30. PMID:17570338^[2]

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

References

↑ Makde RD, Kumar V, Gupta GD, Jasti J, Singh TP, Mahajan SK. Expression, purification, crystallization and preliminary X-ray diffraction studies of recombinant class B non-specific acid phosphatase of Salmonella typhimurium. Acta Crystallogr D Biol Crystallogr. 2003 Oct;59(Pt 10):1849-52. Epub 2003, Sep 19. PMID:14501135
↑ Makde RD, Gupta GD, Mahajan SK, Kumar V. Structural and mutational analyses reveal the functional role of active-site Lys-154 and Asp-173 of Salmonella typhimurium AphA protein. Arch Biochem Biophys. 2007 Aug 1;464(1):70-9. Epub 2007 May 30. PMID:17570338 doi:10.1016/j.abb.2007.03.043

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1z5g"

Categories: Large Structures | Salmonella enterica subsp. enterica serovar Typhimurium | Kumar V | Makde RD

@@ Line 3: / Line 3: @@
 <StructureSection load='1z5g' size='340' side='right'caption='[[1z5g]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1z5g]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z5G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z5G FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1z5g]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z5G OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z5G FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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&#8491;</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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene></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=1z5g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z5g OCA], [https://pdbe.org/1z5g PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1z5g RCSB], [https://www.ebi.ac.uk/pdbsum/1z5g PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1z5g ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/APHA_SALTM APHA_SALTM]] Dephosphorylates several organic phosphate monoesters. 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 (Probable).<ref>PMID:14501135</ref>
+[https://www.uniprot.org/uniprot/APHA_SALTM APHA_SALTM] Dephosphorylates several organic phosphate monoesters. 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 (Probable).<ref>PMID:14501135</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 29: / Line 29: @@
 </div>
 <div class="pdbe-citations 1z5g" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Acid phosphatase 3D structures|Acid phosphatase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Acid phosphatase]]
 [[Category: Large Structures]]
-[[Category: Kumar, V]]
+[[Category: Salmonella enterica subsp. enterica serovar Typhimurium]]
-[[Category: Makde, R D]]
+[[Category: Kumar V]]
-[[Category: Apha protein]]
+[[Category: Makde RD]]
-[[Category: Class-b bacterial non-specific acid phosphatase]]
-[[Category: Hydrolase]]
-[[Category: Metalloenzyme]]

1z5g

From Proteopedia

Current revision

Crystal structure of Salmonella typhimurium AphA protein

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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