1k7h

From Proteopedia

(Difference between revisions)

Current revision

CRYSTAL STRUCTURE OF SHRIMP ALKALINE PHOSPHATASE

Structural highlights

1k7h is a 2 chain structure with sequence from Pandalus borealis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.92Å
Ligands:	, , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q9BHT8_PANBO

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

Alkaline phosphatases are non-specific phosphomonoesterases that are distributed widely in species ranging from bacteria to man. This study has concentrated on the tissue-nonspecific alkaline phosphatase from arctic shrimps (shrimp alkaline phosphatase, SAP). Originating from a cold-active species, SAP is thermolabile and is used widely in vitro, e.g. to dephosphorylate DNA or dNTPs, since it can be inactivated by a short rise in temperature. Since alkaline phosphatases are zinc-containing enzymes, a multiwavelength anomalous dispersion (MAD) experiment was performed on the zinc K edge, which led to the determination of the structure to a resolution of 1.9 A. Anomalous data clearly showed the presence of a zinc triad in the active site, whereas alkaline phosphatases usually contain two zinc and one magnesium ion per monomer. SAP shares the core, an extended beta-sheet flanked by alpha-helices, and a metal triad with the currently known alkaline phosphatase structures (Escherichia coli structures and a human placental structure). Although SAP lacks some features specific for the mammalian enzyme, their backbones are very similar and may therefore be typical for other higher organisms. Furthermore, SAP possesses a striking feature that the other structures lack: surface potential representations show that the enzyme's net charge of -80 is distributed such that the surface is predominantly negatively charged, except for the positively charged active site. The negatively charged substrate must therefore be directed strongly towards the active site. It is generally accepted that optimization of the electrostatics is one of the characteristics related to cold-adaptation. SAP demonstrates this principle very clearly.

The 1.9 A crystal structure of heat-labile shrimp alkaline phosphatase.,de Backer M, McSweeney S, Rasmussen HB, Riise BW, Lindley P, Hough E J Mol Biol. 2002 May 17;318(5):1265-74. PMID:12083516^[1]

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

References

↑ de Backer M, McSweeney S, Rasmussen HB, Riise BW, Lindley P, Hough E. The 1.9 A crystal structure of heat-labile shrimp alkaline phosphatase. J Mol Biol. 2002 May 17;318(5):1265-74. PMID:12083516

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/1k7h"

@@ Line 1: / Line 1: @@
 ==CRYSTAL STRUCTURE OF SHRIMP ALKALINE PHOSPHATASE==
-<StructureSection load='1k7h' size='340' side='right' caption='[[1k7h]], [[Resolution|resolution]] 1.92&Aring;' scene=''>
+<StructureSection load='1k7h' size='340' side='right'caption='[[1k7h]], [[Resolution|resolution]] 1.92&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1k7h]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pandalus_borealis Pandalus borealis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K7H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1K7H FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1k7h]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pandalus_borealis Pandalus borealis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1K7H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1K7H FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MAE:MALEIC+ACID'>MAE</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 1.92&#8491;</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alkaline_phosphatase Alkaline phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.1 3.1.3.1] </span></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MAE:MALEIC+ACID'>MAE</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></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=1k7h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k7h OCA], [http://pdbe.org/1k7h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1k7h RCSB], [http://www.ebi.ac.uk/pdbsum/1k7h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1k7h 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=1k7h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1k7h OCA], [https://pdbe.org/1k7h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1k7h RCSB], [https://www.ebi.ac.uk/pdbsum/1k7h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1k7h ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/Q9BHT8_PANBO Q9BHT8_PANBO]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 13: / Line 15: @@
   <jmolCheckbox>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k7/1k7h_consurf.spt"</scriptWhenChecked>
-    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
@@ Line 27: / Line 29: @@
 </div>
 <div class="pdbe-citations 1k7h" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Alkaline phosphatase 3D structures|Alkaline phosphatase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Alkaline phosphatase]]
+[[Category: Large Structures]]
 [[Category: Pandalus borealis]]
-[[Category: Backer, M E.De]]
+[[Category: De Backer ME]]
-[[Category: Hough, E]]
+[[Category: Hough E]]
-[[Category: Lindley, P]]
+[[Category: Lindley P]]
-[[Category: Rasmussen, H B]]
+[[Category: Mc Sweeney S]]
-[[Category: Riise, B W]]
+[[Category: Rasmussen HB]]
-[[Category: Sweeney, S Mc]]
+[[Category: Riise BW]]
-[[Category: Extended beta sheet]]
-[[Category: Hydrolase]]
-[[Category: Metal triad]]
-[[Category: Phosphomonoester]]
-[[Category: Transferase]]
-[[Category: Zinc triad]]

1k7h

From Proteopedia

Current revision

CRYSTAL STRUCTURE OF SHRIMP ALKALINE PHOSPHATASE

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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