2taa: Difference between revisions

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[[Image:2taa.gif|left|200px]]
[[Image:2taa.png|left|200px]]


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==Overview==
{{ABSTRACT_6609921}}
A complete molecular model of Taka-amylase A consisting of 478 amino acid residues was built with the aid of amino acid sequence data. Some typical structural features of the molecule are described. A model fitting of an amylose chain in the catalytic site of the enzyme showed a possible productive binding mode between substrate and enzyme. On the basis of the difference Fourier analysis and the model fitting study, glutamic acid (Glu230) and aspartic acid (Asp297), which are located at the bottom of the cleft, were concluded to be the catalytic residues, serving as the general acid and base, respectively.


==About this Structure==
==About this Structure==
2TAA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aspergillus_oryzae Aspergillus oryzae]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1taa 1taa]. The following page contains interesting information on the relation of 2TAA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb74_1.html Alpha-amylase]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2TAA OCA].  
2TAA is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Aspergillus_oryzae Aspergillus oryzae]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1taa 1taa]. The following page contains interesting information on the relation of 2TAA with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb74_1.html Alpha-amylase]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2TAA OCA].  
==Reference==
Structure and possible catalytic residues of Taka-amylase A., Matsuura Y, Kusunoki M, Harada W, Kakudo M, J Biochem. 1984 Mar;95(3):697-702. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/6609921 6609921]
[[Category: Alpha-amylase]]
[[Category: Alpha-amylase]]
[[Category: Aspergillus oryzae]]
[[Category: Aspergillus oryzae]]
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[[Category: Matsuura, Y.]]
[[Category: Matsuura, Y.]]
[[Category: Tanaka, N.]]
[[Category: Tanaka, N.]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 17:22:22 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 18:23:17 2008''

Revision as of 15:23, 26 June 2008

File:2taa.png

Template:STRUCTURE 2taa

STRUCTURE AND POSSIBLE CATALYTIC RESIDUES OF TAKA-AMYLASE A


Template:ABSTRACT 6609921

About this Structure

2TAA is a Single protein structure of sequence from Aspergillus oryzae. This structure supersedes the now removed PDB entry 1taa. The following page contains interesting information on the relation of 2TAA with [Alpha-amylase]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 18:23:17 2008

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