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1ulo

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{{STRUCTURE_1ulo| PDB=1ulo | SCENE= }}
{{STRUCTURE_1ulo| PDB=1ulo | SCENE= }}
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'''N-TERMINAL CELLULOSE-BINDING DOMAIN FROM CELLULOMONAS FIMI BETA-1,4-GLUCANASE C, NMR, MINIMIZED AVERAGE STRUCTURE'''
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===N-TERMINAL CELLULOSE-BINDING DOMAIN FROM CELLULOMONAS FIMI BETA-1,4-GLUCANASE C, NMR, MINIMIZED AVERAGE STRUCTURE===
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==Overview==
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Multidimensional heteronuclear nuclear magnetic resonance (NMR) spectroscopy was used to determine the tertiary structure of the 152 amino acid N-terminal cellulose-binding domain from Cellulomonas fimi 1,4-beta-glucanase CenC (CBDN1). CBDN1 was studied in the presence of saturating concentrations of cellotetraose, but due to spectral overlap, the oligosaccharide was not included in the structure calculations. A total of 1705 interproton nuclear Overhauser effect (NOE), 56 phi, 88 psi, 42 chi 1, 9 chi 2 dihedral angle, and 88 hydrogen-bond restraints were used to calculate 25 final structures. These structures have a rmsd from the average of 0.79 +/- 0.11 A for all backbone atoms excluding disordered termini and 0.44 +/- 0.05 A for residues with regular secondary structures. CBDN1 is composed of 10 beta-strands, folded into two antiparallel beta-sheets with the topology of a jelly-roll beta-sandwich. The strands forming the face of the protein previously determined by chemical shift perturbations to be responsible for cellooligosaccharide binding [Johnson, P. E., Tomme, P., Joshi, M. D., &amp; McIntosh, L. P. (1996) Biochemistry 35, 13895-13906] are shorter than those forming the opposite side of the protein. This results in a 5-stranded binding cleft, containing a central strip of hydrophobic residues that is flanked on both sides by polar hydrogen-bonding groups. The presence of this cleft provides a structural explanation for the unique selectivity of CBDN1 for amorphous cellulose and other soluble oligosaccharides and the lack of binding to crystalline cellulose. The tertiary structure of CBDN1 is strikingly similar to that of the bacterial 1,3-1,4-beta-glucanases, as well as other sugar-binding proteins with jelly-roll folds.
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(as it appears on PubMed at http://www.pubmed.gov), where 8916925 is the PubMed ID number.
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{{ABSTRACT_PUBMED_8916925}}
==About this Structure==
==About this Structure==
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1ULO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Cellulomonas_fimi Cellulomonas fimi]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ULO OCA].
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1ULO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Cellulomonas_fimi Cellulomonas fimi]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ULO OCA].
==Reference==
==Reference==
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[[Category: Cellulose-binding domain]]
[[Category: Cellulose-binding domain]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:23:53 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:41:06 2008''

Revision as of 17:41, 27 July 2008

Image:1ulo.png

Template:STRUCTURE 1ulo

N-TERMINAL CELLULOSE-BINDING DOMAIN FROM CELLULOMONAS FIMI BETA-1,4-GLUCANASE C, NMR, MINIMIZED AVERAGE STRUCTURE

Template:ABSTRACT PUBMED 8916925

About this Structure

1ULO is a Single protein structure of sequence from Cellulomonas fimi. Full experimental information is available from OCA.

Reference

Structure of the N-terminal cellulose-binding domain of Cellulomonas fimi CenC determined by nuclear magnetic resonance spectroscopy., Johnson PE, Joshi MD, Tomme P, Kilburn DG, McIntosh LP, Biochemistry. 1996 Nov 12;35(45):14381-94. PMID:8916925

Page seeded by OCA on Sun Jul 27 20:41:06 2008

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