2a8y

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of 5'-deoxy-5'methylthioadenosine phosphorylase complexed with 5'-deoxy-5'methylthioadenosine and sulfate

Structural highlights

2a8y is a 12 chain structure with sequence from Saccharolobus solfataricus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.45Å
Ligands:	,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MTAP_SACS2 Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.[HAMAP-Rule:MF_01963]^[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 crystal structure of Sulfolobus solfataricus 5'-deoxy-5'-methylthioadenosine phosphorylase II (SsMTAPII) in complex with 5'-deoxy-5'-methylthioadenosine (MTA) and sulfate was determined to 1.45A resolution. The hexameric structure of SsMTAPII is a dimer-of-trimers with one active site per monomer. The oligomeric assembly of the trimer and the monomer topology of SsMTAPII are almost identical with trimeric human 5'-deoxy-5'-methylthioadenosine phosphorylase (hMTAP). SsMTAPII is the first reported hexameric member in the trimeric class of purine nucleoside phosphorylase (PNP) from Archaea. Unlike hMTAP, which is highly specific for MTA, SsMTAPII also accepts adenosine as a substrate. The residues at the active sites of SsMTAPII and hMTAP are almost identical. The broad substrate specificity of SsMTAPII may be due to the flexibility of the C-terminal loop. SsMTAPII is extremely thermoactive and thermostable. The three-dimensional structure of SsMTAPII suggests that the unique dimer-of-trimers quaternary structure, a CXC motif at the C terminus, and two pairs of intrasubunit disulfide bridges may play an important role in its thermal stability.

The crystal structure of 5'-deoxy-5'-methylthioadenosine phosphorylase II from Sulfolobus solfataricus, a thermophilic enzyme stabilized by intramolecular disulfide bonds.,Zhang Y, Porcelli M, Cacciapuoti G, Ealick SE J Mol Biol. 2006 Mar 17;357(1):252-62. Epub 2005 Dec 27. PMID:16414070^[2]

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

References

↑ Cacciapuoti G, Forte S, Moretti MA, Brio A, Zappia V, Porcelli M. A novel hyperthermostable 5'-deoxy-5'-methylthioadenosine phosphorylase from the archaeon Sulfolobus solfataricus. FEBS J. 2005 Apr;272(8):1886-99. PMID:15819883 doi:http://dx.doi.org/10.1111/j.1742-4658.2005.04619.x
↑ Zhang Y, Porcelli M, Cacciapuoti G, Ealick SE. The crystal structure of 5'-deoxy-5'-methylthioadenosine phosphorylase II from Sulfolobus solfataricus, a thermophilic enzyme stabilized by intramolecular disulfide bonds. J Mol Biol. 2006 Mar 17;357(1):252-62. Epub 2005 Dec 27. PMID:16414070 doi:10.1016/j.jmb.2005.12.040

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/2a8y"

@@ Line 1: / Line 1: @@
 ==Crystal structure of 5'-deoxy-5'methylthioadenosine phosphorylase complexed with 5'-deoxy-5'methylthioadenosine and sulfate==
-<StructureSection load='2a8y' size='340' side='right' caption='[[2a8y]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
+<StructureSection load='2a8y' size='340' side='right'caption='[[2a8y]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2a8y]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_35091 Atcc 35091]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A8Y OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2A8Y FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2a8y]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2A8Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2A8Y FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MTA:5-DEOXY-5-METHYLTHIOADENOSINE'>MTA</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]] 1.45&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1cg6|1cg6]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MTA:5-DEOXY-5-METHYLTHIOADENOSINE'>MTA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SsMTAPII ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2287 ATCC 35091])</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=2a8y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a8y OCA], [https://pdbe.org/2a8y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2a8y RCSB], [https://www.ebi.ac.uk/pdbsum/2a8y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2a8y 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/S-methyl-5'-thioadenosine_phosphorylase S-methyl-5'-thioadenosine phosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.28 2.4.2.28] </span></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=2a8y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2a8y OCA], [http://pdbe.org/2a8y PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2a8y RCSB], [http://www.ebi.ac.uk/pdbsum/2a8y PDBsum]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/MTAP_SULSO MTAP_SULSO]] Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.<ref>PMID:15819883</ref>
+[https://www.uniprot.org/uniprot/MTAP_SACS2 MTAP_SACS2] Catalyzes the reversible phosphorylation of S-methyl-5'-thioadenosine (MTA) to adenine and 5-methylthioribose-1-phosphate. Involved in the breakdown of MTA, a major by-product of polyamine biosynthesis. Responsible for the first step in the methionine salvage pathway after MTA has been generated from S-adenosylmethionine. Has broad substrate specificity with 6-aminopurine nucleosides as preferred substrates.[HAMAP-Rule:MF_01963]<ref>PMID:15819883</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a8/2a8y_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a8/2a8y_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 32: / Line 31: @@
 ==See Also==
-*[[5'-deoxy-5'-methylthioadenosine phosphorylase|5'-deoxy-5'-methylthioadenosine phosphorylase]]
+*[[5'-deoxy-5'-methylthioadenosine phosphorylase 3D structures|5'-deoxy-5'-methylthioadenosine phosphorylase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Atcc 35091]]
+[[Category: Large Structures]]
-[[Category: S-methyl-5'-thioadenosine phosphorylase]]
+[[Category: Saccharolobus solfataricus]]
-[[Category: Cacciapuoti, G]]
+[[Category: Cacciapuoti G]]
-[[Category: Ealick, S E]]
+[[Category: Ealick SE]]
-[[Category: Porcelli, M]]
+[[Category: Porcelli M]]
-[[Category: Zhang, Y]]
+[[Category: Zhang Y]]
-[[Category: Alpha/beta]]
-[[Category: Beta barrel]]
-[[Category: Beta sheet]]
-[[Category: Transferase]]

2a8y

From Proteopedia

Current revision

Crystal structure of 5'-deoxy-5'methylthioadenosine phosphorylase complexed with 5'-deoxy-5'methylthioadenosine and sulfate

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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