1art

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /><applet load="1art" size="450" color="white" frame="true" align="right" spinBox="true" caption="1art, resolution 1.8&Aring;" /> '''X-RAY CRYSTALLOGRAPHI...)
Current revision (06:32, 7 February 2024) (edit) (undo)
 
(17 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1art.jpg|left|200px]]<br /><applet load="1art" size="450" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1art, resolution 1.8&Aring;" />
 
-
'''X-RAY CRYSTALLOGRAPHIC STUDY OF PYRIDOXAL 5'-PHOSPHATE-TYPE ASPARTATE AMINOTRANSFERASES FROM ESCHERICHIA COLI IN OPEN AND CLOSED FORM'''<br />
 
-
==Overview==
+
==X-RAY CRYSTALLOGRAPHIC STUDY OF PYRIDOXAL 5'-PHOSPHATE-TYPE ASPARTATE AMINOTRANSFERASES FROM ESCHERICHIA COLI IN OPEN AND CLOSED FORM==
-
We determined the three-dimensional structures of aspartate, aminotransferase (AspAT) from Escherichia coli and its complex with, inhibitor (2-methyl-L-aspartate) at 1.8A resolution. This enzyme, reversibly catalyzes the transamination reaction and is a dimer of two, identical subunits. Each subunit has 396 amino acid residues and one, pyridoxal 5'-phosphate as a cofactor, and is divided into two domains, one, large and the other small. Upon binding of the inhibitor, the small domain, rotates by 5 degrees toward the large domain to close the active site., This domain movement is caused mainly by small but important main-chain, conformational changes in the residues located over the domain interface, of the small domain. In chicken mitochondrial AspAT, the domain movement, was larger, with a rotational angle of 13 degrees. By comparison of these, two structures, the difference in the rotational angles was found to be, caused by the larger opening of the domain in the open form of chicken, mitochondrial AspAT. Although the overall structures of these two enzymes, were almost identical, the surface area of the domain interface in the E., coli enzyme was larger than that in mitochondrial AspAT, suggesting that, the structure of the domain interface is responsible for the degree of, movement of the small domain.
+
<StructureSection load='1art' size='340' side='right'caption='[[1art]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1art]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ART OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ART 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]] 1.8&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0A0:2-METHYL-L-ASPARTIC+ACID'>0A0</scene>, <scene name='pdbligand=PLP:PYRIDOXAL-5-PHOSPHATE'>PLP</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=1art FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1art OCA], [https://pdbe.org/1art PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1art RCSB], [https://www.ebi.ac.uk/pdbsum/1art PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1art ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/AAT_ECOLI AAT_ECOLI]
 +
== 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/ar/1art_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=1art ConSurf].
 +
<div style="clear:both"></div>
-
==About this Structure==
+
==See Also==
-
1ART is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] with PLP and CH3 as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/Aspartate_transaminase Aspartate transaminase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.6.1.1 2.6.1.1] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1ART OCA].
+
*[[Aspartate aminotransferase 3D structures|Aspartate aminotransferase 3D structures]]
-
 
+
__TOC__
-
==Reference==
+
</StructureSection>
-
X-ray crystallographic study of pyridoxal 5'-phosphate-type aspartate aminotransferases from Escherichia coli in open and closed form., Okamoto A, Higuchi T, Hirotsu K, Kuramitsu S, Kagamiyama H, J Biochem (Tokyo). 1994 Jul;116(1):95-107. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7798192 7798192]
+
-
[[Category: Aspartate transaminase]]
+
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
-
[[Category: Single protein]]
+
[[Category: Large Structures]]
-
[[Category: Higuchi, T.]]
+
[[Category: Higuchi T]]
-
[[Category: Hirotsu, K.]]
+
[[Category: Hirotsu K]]
-
[[Category: Okamoto, A.]]
+
[[Category: Okamoto A]]
-
[[Category: CH3]]
+
-
[[Category: PLP]]
+
-
[[Category: transferase(aminotransferase)]]
+
-
 
+
-
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 11:05:03 2007''
+

Current revision

X-RAY CRYSTALLOGRAPHIC STUDY OF PYRIDOXAL 5'-PHOSPHATE-TYPE ASPARTATE AMINOTRANSFERASES FROM ESCHERICHIA COLI IN OPEN AND CLOSED FORM

PDB ID 1art

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1art"
Personal tools