1btc

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[[Image:1btc.gif|left|200px]]
[[Image:1btc.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1btc |SIZE=350|CAPTION= <scene name='initialview01'>1btc</scene>, resolution 2.0&Aring;
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The line below this paragraph, containing "STRUCTURE_1btc", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=BME:BETA-MERCAPTOETHANOL'>BME</scene>, <scene name='pdbligand=GLC:GLUCOSE'>GLC</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-amylase Beta-amylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.2 3.2.1.2] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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-->
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|DOMAIN=
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{{STRUCTURE_1btc| PDB=1btc | SCENE= }}
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1btc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1btc OCA], [http://www.ebi.ac.uk/pdbsum/1btc PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1btc RCSB]</span>
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}}
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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==
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1BTC is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/ ]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BTC OCA].
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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.]]
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[[Category: hydrolase(o-glycosyl)]]
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''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 Sun Mar 30 19:07:53 2008''
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Revision as of 08:56, 2 May 2008

Template:STRUCTURE 1btc

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

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