1btc
From Proteopedia
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[[Image:1btc.gif|left|200px]] | [[Image:1btc.gif|left|200px]] | ||
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'''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''' | ||
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==About this Structure== | ==About this Structure== | ||
- | 1BTC is a [[Single protein]] structure | + | 1BTC is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BTC OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Sacchettini, J C.]] | [[Category: Sacchettini, J C.]] | ||
[[Category: Sato, M.]] | [[Category: Sato, M.]] | ||
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 11:56:05 2008'' | |
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- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 08:56, 2 May 2008
THREE-DIMENSIONAL STRUCTURE OF SOYBEAN BETA-AMYLASE DETERMINED AT 3.0 ANGSTROMS RESOLUTION: PRELIMINARY CHAIN TRACING OF THE COMPLEX WITH ALPHA-CYCLODEXTRIN
Overview
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.
About this Structure
1BTC is a Single protein structure. Full crystallographic information is available from OCA.
Reference
Three-dimensional structure of soybean beta-amylase determined at 3.0 A resolution: preliminary chain tracing of the complex with alpha-cyclodextrin., Mikami B, Sato M, Shibata T, Hirose M, Aibara S, Katsube Y, Morita Y, J Biochem. 1992 Oct;112(4):541-6. PMID:1491009 Page seeded by OCA on Fri May 2 11:56:05 2008