1btc: Difference between revisions

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[[Image:1btc.gif|left|200px]]
{{Seed}}
[[Image:1btc.png|left|200px]]


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{{STRUCTURE_1btc|  PDB=1btc  |  SCENE=  }}  
{{STRUCTURE_1btc|  PDB=1btc  |  SCENE=  }}  


'''THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN'''
===THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN===




==Overview==
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The three-dimensional structure of a complex of soybean beta-amylase [EC 3.2.1.2] with an inhibitor, alpha-cyclodextrin, has been determined at 3.0 A resolution by X-ray diffraction analysis. Preliminary chain tracing showed that the enzyme folded into large and small domains. The large domain has a (beta alpha)8 super-secondary structure, while the smaller one is formed from two long loops extending from the beta 3 and beta 4 strands of the (beta alpha)8 structure. The interface of the two domains together with shorter loops from the (beta alpha)8 structure form a deep cleft, in which alpha-cyclodextrin binds slightly away from the center. Two maltose molecules also bind in the cleft. One shares a binding site with alpha-cyclodextrin and the other is situated more deeply in the cleft.
The line below this paragraph, {{ABSTRACT_PUBMED_1491009}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_1491009}}


==About this Structure==
==About this Structure==
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[[Category: Sacchettini, J C.]]
[[Category: Sacchettini, J C.]]
[[Category: Sato, M.]]
[[Category: Sato, M.]]
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