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[[Image:2d3a.gif|left|200px]]


{{Structure
==Crystal Structure of the Maize Glutamine Synthetase complexed with ADP and Methionine sulfoximine Phosphate==
|PDB= 2d3a |SIZE=350|CAPTION= <scene name='initialview01'>2d3a</scene>, resolution 2.63&Aring;
<StructureSection load='2d3a' size='340' side='right'caption='[[2d3a]], [[Resolution|resolution]] 2.63&Aring;' scene=''>
|SITE=  
== Structural highlights ==
|LIGAND= <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=P3S:L-METHIONINE-S-SULFOXIMINE+PHOSPHATE'>P3S</scene> and <scene name='pdbligand=ADP:ADENOSINE-5&#39;-DIPHOSPHATE'>ADP</scene>
<table><tr><td colspan='2'>[[2d3a]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Zea_mays Zea mays]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2D3A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2D3A FirstGlance]. <br>
|ACTIVITY= [http://en.wikipedia.org/wiki/Glutamate--ammonia_ligase Glutamate--ammonia ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.1.2 6.3.1.2]  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.63&#8491;</td></tr>
|GENE= gs1a ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4577 Zea mays])
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=P3S:L-METHIONINE-S-SULFOXIMINE+PHOSPHATE'>P3S</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=2d3a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2d3a OCA], [https://pdbe.org/2d3a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2d3a RCSB], [https://www.ebi.ac.uk/pdbsum/2d3a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2d3a ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GLNA3_MAIZE GLNA3_MAIZE] Plays a role in the flow of nitrogen into nitrogenous organic compounds.
== 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/d3/2d3a_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=2d3a ConSurf].
<div style="clear:both"></div>


'''Crystal Structure of the Maize Glutamine Synthetase complexed with ADP and Methionine sulfoximine Phosphate'''
==See Also==
 
*[[Glutamine synthetase 3D structures|Glutamine synthetase 3D structures]]
 
__TOC__
==Overview==
</StructureSection>
Plants provide nourishment for animals and other heterotrophs as the sole primary producer in the food chain. Glutamine synthetase (GS), one of the essential enzymes for plant autotrophy catalyzes the incorporation of ammonia into glutamate to generate glutamine with concomitant hydrolysis of ATP, and plays a crucial role in the assimilation and re-assimilation of ammonia derived from a wide variety of metabolic processes during plant growth and development. Elucidation of the atomic structure of higher plant GS is important to understand its detailed reaction mechanism and to obtain further insight into plant productivity and agronomical utility. Here we report the first crystal structures of maize (Zea mays L.) GS. The structure reveals a unique decameric structure that differs significantly from the bacterial GS structure. Higher plants have several isoenzymes of GS differing in heat stability and catalytic properties for efficient responses to variation in the environment and nutrition. A key residue responsible for the heat stability was found to be Ile-161 in GS1a. The three structures in complex with substrate analogues, including phosphinothricin, a widely used herbicide, lead us to propose a mechanism for the transfer of phosphate from ATP to glutamate and to interpret the inhibitory action of phosphinothricin as a guide for the development of new potential herbicides.
[[Category: Large Structures]]
 
==About this Structure==
2D3A is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Zea_mays Zea mays]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2D3A OCA].
 
==Reference==
Atomic structure of plant glutamine synthetase: a key enzyme for plant productivity., Unno H, Uchida T, Sugawara H, Kurisu G, Sugiyama T, Yamaya T, Sakakibara H, Hase T, Kusunoki M, J Biol Chem. 2006 Sep 29;281(39):29287-96. Epub 2006 Jul 7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16829528 16829528]
[[Category: Glutamate--ammonia ligase]]
[[Category: Single protein]]
[[Category: Zea mays]]
[[Category: Zea mays]]
[[Category: Hase, T.]]
[[Category: Hase T]]
[[Category: Kurisu, G.]]
[[Category: Kurisu G]]
[[Category: Kusunoki, M.]]
[[Category: Kusunoki M]]
[[Category: Sakakibara, H.]]
[[Category: Sakakibara H]]
[[Category: Sugawara, H.]]
[[Category: Sugawara H]]
[[Category: Sugiyama, T.]]
[[Category: Sugiyama T]]
[[Category: Uchida, T.]]
[[Category: Uchida T]]
[[Category: Unno, H.]]
[[Category: Unno H]]
[[Category: Yamaya, T.]]
[[Category: Yamaya T]]
[[Category: ADP]]
[[Category: MN]]
[[Category: P3S]]
[[Category: glutamine synthetase maize]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 14:54:54 2008''

Latest revision as of 16:46, 13 March 2024

Crystal Structure of the Maize Glutamine Synthetase complexed with ADP and Methionine sulfoximine PhosphateCrystal Structure of the Maize Glutamine Synthetase complexed with ADP and Methionine sulfoximine Phosphate

Structural highlights

2d3a is a 10 chain structure with sequence from Zea mays. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.63Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

GLNA3_MAIZE Plays a role in the flow of nitrogen into nitrogenous organic compounds.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

2d3a, resolution 2.63Å

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