1cdg

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[[Image:1cdg.gif|left|200px]]
[[Image:1cdg.gif|left|200px]]
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{{Structure
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<!--
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|PDB= 1cdg |SIZE=350|CAPTION= <scene name='initialview01'>1cdg</scene>, resolution 2.0&Aring;
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The line below this paragraph, containing "STRUCTURE_1cdg", 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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MAL:MALTOSE'>MAL</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/Cyclomaltodextrin_glucanotransferase Cyclomaltodextrin glucanotransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.1.19 2.4.1.19] </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_1cdg| PDB=1cdg | 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=1cdg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cdg OCA], [http://www.ebi.ac.uk/pdbsum/1cdg PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1cdg RCSB]</span>
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}}
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'''NUCLEOTIDE SEQUENCE AND X-RAY STRUCTURE OF CYCLODEXTRIN GLYCOSYLTRANSFERASE FROM BACILLUS CIRCULANS STRAIN 251 IN A MALTOSE-DEPENDENT CRYSTAL FORM'''
'''NUCLEOTIDE SEQUENCE AND X-RAY STRUCTURE OF CYCLODEXTRIN GLYCOSYLTRANSFERASE FROM BACILLUS CIRCULANS STRAIN 251 IN A MALTOSE-DEPENDENT CRYSTAL FORM'''
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[[Category: Rozeboom, H J.]]
[[Category: Rozeboom, H J.]]
[[Category: Strokopytov, B V.]]
[[Category: Strokopytov, B V.]]
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[[Category: transferase(glucanotransferase)]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 12:36:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:19:26 2008''
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Revision as of 09:36, 2 May 2008

Image:1cdg.gif

Template:STRUCTURE 1cdg

NUCLEOTIDE SEQUENCE AND X-RAY STRUCTURE OF CYCLODEXTRIN GLYCOSYLTRANSFERASE FROM BACILLUS CIRCULANS STRAIN 251 IN A MALTOSE-DEPENDENT CRYSTAL FORM


Overview

The cyclodextrin glycosyltransferase (CGTase, EC 2.4.1.19) gene from Bacillus circulans strain 251 was cloned and sequenced. It was found to code for a mature protein of 686 amino acid residues, showing 75% identity to the CGTase from B. circulans strain 8. The X-ray structure of the CGTase was elucidated in a maltodextrin-dependent crystal form and refined against X-ray diffraction data to 2.0 A resolution. The structure of the enzyme is nearly identical to the CGTase from B. circulans strain 8. Three maltose binding sites are observed at the protein surface, two in domain E and one in domain C. The maltose-dependence of CGTase crystallization can be ascribed to the proximity of two of the maltose binding sites to intermolecular crystal contacts. The maltose molecules bound in the E domain interact with several residues implicated in a raw starch binding motif conserved among a diverse group of starch converting enzymes.

About this Structure

1CDG is a Single protein structure of sequence from Bacillus circulans. Full crystallographic information is available from OCA.

Reference

Nucleotide sequence and X-ray structure of cyclodextrin glycosyltransferase from Bacillus circulans strain 251 in a maltose-dependent crystal form., Lawson CL, van Montfort R, Strokopytov B, Rozeboom HJ, Kalk KH, de Vries GE, Penninga D, Dijkhuizen L, Dijkstra BW, J Mol Biol. 1994 Feb 18;236(2):590-600. PMID:8107143 Page seeded by OCA on Fri May 2 12:36:27 2008

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