1poo: Difference between revisions

No edit summary
No edit summary
 
(10 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1poo.gif|left|200px]]
<!--
The line below this paragraph, containing "STRUCTURE_1poo", creates the "Structure Box" on the page.
You may change the PDB parameter (which sets the PDB file loaded into the applet)
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
or leave the SCENE parameter empty for the default display.
-->
{{STRUCTURE_1poo|  PDB=1poo  |  SCENE=  }}
'''THERMOSTABLE PHYTASE FROM BACILLUS SP'''


==THERMOSTABLE PHYTASE FROM BACILLUS SP==
<StructureSection load='1poo' size='340' side='right'caption='[[1poo]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1poo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1POO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1POO FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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=1poo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1poo OCA], [https://pdbe.org/1poo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1poo RCSB], [https://www.ebi.ac.uk/pdbsum/1poo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1poo ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PHYT_BACSD PHYT_BACSD]
== 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/po/1poo_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1poo ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Phytases hydrolyze phytic acid to less phosphorylated myo-inositol derivatives and inorganic phosphate. A thermostable phytase is of great value in applications for improving phosphate and metal ion availability in animal feed, and thereby reducing phosphate pollution to the environment. Here, we report a new folding architecture of a six-bladed propeller for phosphatase activity revealed by the 2.1 A crystal structures of a novel, thermostable phytase determined in both the partially and fully Ca2+-loaded states. Binding of two calcium ions to high-affinity calcium binding sites results in a dramatic increase in thermostability (by as much as approximately 30 degrees C in melting temperature) by joining loop segments remote in the amino acid sequence. Binding of three additional calcium ions to low-affinity calcium binding sites at the top of the molecule turns on the catalytic activity of the enzyme by converting the highly negatively charged cleft into a favorable environment for the binding of phytate.


==Overview==
Crystal structures of a novel, thermostable phytase in partially and fully calcium-loaded states.,Ha NC, Oh BC, Shin S, Kim HJ, Oh TK, Kim YO, Choi KY, Oh BH Nat Struct Biol. 2000 Feb;7(2):147-53. PMID:10655618<ref>PMID:10655618</ref>
Phytases hydrolyze phytic acid to less phosphorylated myo-inositol derivatives and inorganic phosphate. A thermostable phytase is of great value in applications for improving phosphate and metal ion availability in animal feed, and thereby reducing phosphate pollution to the environment. Here, we report a new folding architecture of a six-bladed propeller for phosphatase activity revealed by the 2.1 A crystal structures of a novel, thermostable phytase determined in both the partially and fully Ca2+-loaded states. Binding of two calcium ions to high-affinity calcium binding sites results in a dramatic increase in thermostability (by as much as approximately 30 degrees C in melting temperature) by joining loop segments remote in the amino acid sequence. Binding of three additional calcium ions to low-affinity calcium binding sites at the top of the molecule turns on the catalytic activity of the enzyme by converting the highly negatively charged cleft into a favorable environment for the binding of phytate.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1POO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1POO OCA].
</div>
<div class="pdbe-citations 1poo" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Crystal structures of a novel, thermostable phytase in partially and fully calcium-loaded states., Ha NC, Oh BC, Shin S, Kim HJ, Oh TK, Kim YO, Choi KY, Oh BH, Nat Struct Biol. 2000 Feb;7(2):147-53. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10655618 10655618]
*[[Phytase 3D structures|Phytase 3D structures]]
[[Category: 3-phytase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus amyloliquefaciens]]
[[Category: Bacillus amyloliquefaciens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Ha, N C.]]
[[Category: Ha NC]]
[[Category: Oh, B H.]]
[[Category: Oh BH]]
[[Category: Bacillus]]
[[Category: Phosphatase]]
[[Category: Phytasephytase]]
[[Category: Thermostable]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 05:18:49 2008''

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA