1of4: Difference between revisions

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STRUCTURAL AND THERMODYNAMIC DISSECTION OF SPECIFIC MANNAN RECOGNITION BY A CARBOHYDRATE-BINDING MODULE, TMCBM27

OverviewOverview

The C-terminal 176 amino acids of a Thermotoga maritima mannanase (Man5) constitute a carbohydrate binding module (CBM) that has been classified into CBM family 27. The isolated CBM27 domain, named TmCBM27, binds tightly (K(a)s 10(5)-10(6) M(-1)) to beta-1, 4-mannooligosaccharides, carob galactomannan, and konjac glucomannan, but not to cellulose (insoluble and soluble) or soluble birchwood xylan. The X-ray crystal structures of native TmCBM27, a TmCBM27-mannohexaose complex, and a TmCBM27-6(3),6(4)-alpha-D-galactosyl-mannopentaose complex at 2.0 A, 1.6 A, and 1.35 A, respectively, reveal the basis of TmCBM27's specificity for mannans. In particular, the latter complex, which is the first structure of a CBM in complex with a branched plant cell wall polysaccharide, illustrates how the architecture of the binding site can influence the recognition of naturally substituted polysaccharides.

About this StructureAbout this Structure

1OF4 is a Single protein structure of sequence from Thermotoga maritima. Full crystallographic information is available from OCA.

ReferenceReference

Structural and thermodynamic dissection of specific mannan recognition by a carbohydrate binding module, TmCBM27., Boraston AB, Revett TJ, Boraston CM, Nurizzo D, Davies GJ, Structure. 2003 Jun;11(6):665-75. PMID:12791255 Page seeded by OCA on Sat May 3 03:46:01 2008

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OCA

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- {{Structure
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-}}
 '''STRUCTURAL AND THERMODYNAMIC DISSECTION OF SPECIFIC MANNAN RECOGNITION BY A CARBOHYDRATE-BINDING MODULE, TMCBM27'''
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 [[Category: Nurizzo, D.]]
 [[Category: Revett, T J.]]
-[[Category: carbohydrate binding module]]
+[[Category: Carbohydrate binding module]]
-[[Category: hydrolase]]
+[[Category: Hydrolase]]
-[[Category: mannan binding]]
+[[Category: Mannan binding]]
-[[Category: polysaccharide degradation]]
+[[Category: Polysaccharide degradation]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 03:46:01 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:44:22 2008''