2ay7: Difference between revisions
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==AROMATIC AMINO ACID AMINOTRANSFERASE WITH 4-PHENYLBUTYRIC ACID== | ==AROMATIC AMINO ACID AMINOTRANSFERASE WITH 4-PHENYLBUTYRIC ACID== | ||
<StructureSection load='2ay7' size='340' side='right' caption='[[2ay7]], [[Resolution|resolution]] 2.40Å' scene=''> | <StructureSection load='2ay7' size='340' side='right'caption='[[2ay7]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ay7]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_17741 Atcc 17741]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AY7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2AY7 FirstGlance]. <br> | <table><tr><td colspan='2'>[[2ay7]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_17741 Atcc 17741]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AY7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2AY7 FirstGlance]. <br> | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ay/2ay7_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ay/2ay7_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 2ay7" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 2ay7" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Aminotransferase 3D structures|Aminotransferase 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
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[[Category: Aromatic-amino-acid transaminase]] | [[Category: Aromatic-amino-acid transaminase]] | ||
[[Category: Atcc 17741]] | [[Category: Atcc 17741]] | ||
[[Category: Large Structures]] | |||
[[Category: Hirotsu, K]] | [[Category: Hirotsu, K]] | ||
[[Category: Kagamiyama, H]] | [[Category: Kagamiyama, H]] | ||
Revision as of 22:15, 11 December 2019
AROMATIC AMINO ACID AMINOTRANSFERASE WITH 4-PHENYLBUTYRIC ACIDAROMATIC AMINO ACID AMINOTRANSFERASE WITH 4-PHENYLBUTYRIC ACID
Structural highlights
Function[TYRB_PARDE] Shows activities toward both dicarboxylic and aromatic substrates. 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 PubMedParacoccus denitrificans aromatic amino acid aminotransferase (EC 2. 6.1.57; pdAroAT) binds with a series of aliphatic monocarboxylates attached to the bulky hydrophobic groups. To analyze the properties of the active site in this enzyme, we determined the tertiary structures of pdAroAT complexed with nine different inhibitors. Comparison of these active site structures showed that the active site of pdAroAT consists of two parts with contrary properties: rigidity and flexibility. The regions that interact with the carboxylates and methylene chains of the inhibitors gave essentially the same structures among these complexes, exhibiting the rigid property, which would involve fixing the substrate at the proper orientation for efficient catalysis. The region that interacts with the terminal hydrophobic groups of the inhibitors gave versatile structures according to the structures of the terminal groups, showing that this region is structurally flexible. This is mainly achieved by the conformational versatility of the side chains of Asp15, Lys16, Asn142, Arg292, and Ser296. These residues formed in the active site hydrogen bond networks, which were adaptable for the structures of the terminal hydrophobic groups of the inhibitors, with a small deformation or partial destruction according to the shapes and sizes of the inhibitors. These observations illustrate how the flexibility and rigidity in the active site can be used for the substrate binding and recognition. The active site of Paracoccus denitrificans aromatic amino acid aminotransferase has contrary properties: flexibility and rigidity.,Okamoto A, Ishii S, Hirotsu K, Kagamiyama H Biochemistry. 1999 Jan 26;38(4):1176-84. PMID:9930977[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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