Carbohydrate Binding Module Family 32

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• Author: ^^^Elizabeth Ficko-Blean^^^
• Responsible Curator: ^^^Al Boraston^^^

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CAZy DB link

http://www.cazy.org/CBM32.html

Ligand specificities

Certain linkages and promiscuity would also be mentioned here if biologically relevant.

A CBM32 from a Cellvibrio mixtus family 16 glycoside hydrolase binds laminarin and pustulan [1]

A CBM32 from a Clostridium thermocellum mannanase has demonstrated binding on nonreducing end of β-mannans and β-1,4-linked mannooligosaccharides[2]

The Clostridium perfringens CBM32s have been well studied and their ligand specificities are as follows: galactose, N-acetylgalactosamine[3, 4], N-acetylglucosamine, N-acetylglucosamine-β-1,3-N-acetylgalactosamine, N-acetylglucosamine-β-1,2-mannose, N-acetylglucosamine-β-1,3-mannose (non-biological) [5], N-acetyl-β-D-glucosamine-α-1,4-D-galactose[4]

Note: Here is an example of how to insert references in the text, together with the "biblio" section below: Please see these references for an essential introduction to the CAZy classification system: [6, 7]. CBMs, in particular, have been extensively reviewed [8, 9, 10, 11].

Structural Features

Content in this section should include, in paragraph form, a description of:

• Fold: Structural fold (beta trefoil, beta sandwich, etc.)
• Type: Include here Type A, B, or C and properties
• Features of ligand binding: Describe CBM binding pocket location (Side or apex) important residues for binding (W, Y, F, subsites), interact with reducing end, non-reducing end, planar surface or within polysaccharide chains. Include examples pdb codes. Metal ion dependent. Etc.

Functionalities

Content in this section should include, in paragraph form, a description of:

• Functional role of CBM: Describe common functional roles such as targeting, disruptive, anchoring, proximity/position on substrate.
• Most Common Associated Modules: 1. Glycoside Hydrolase Activity; 2. Additional Associated Modules (other CBM, FNIII, cohesin, dockerins, expansins, etc.)
• Novel Applications: Include here if CBM has been used to modify another enzyme, or if a CBM was used to label plant/mammalian tissues? Etc.

Family Firsts

First Identified

Insert archetype here, possibly including very brief synopsis.

First Structural Characterization

Insert archetype here, possibly including very brief synopsis.

References

1. Centeno MS, Goyal A, Prates JA, Ferreira LM, Gilbert HJ, and Fontes CM. (2006). Novel modular enzymes encoded by a cellulase gene cluster in Cellvibrio mixtus. FEMS Microbiol Lett. 2006;265(1):26-34. DOI:10.1111/j.1574-6968.2006.00464.x |

2. pmid= 22562994

3. Boraston AB, Ficko-Blean E, and Healey M. (2007). Carbohydrate recognition by a large sialidase toxin from Clostridium perfringens. Biochemistry. 2007;46(40):11352-60. DOI:10.1021/bi701317g |

4. pmid= 22479408

5. pmid= 19422833

6. Davies, G.J. and Sinnott, M.L. (2008) Sorting the diverse: the sequence-based classifications of carbohydrate-active enzymes. Biochem. J. (BJ Classic Paper, online only). DOI: 10.1042/BJ20080382

7. Cantarel BL, Coutinho PM, Rancurel C, Bernard T, Lombard V, and Henrissat B. (2009). The Carbohydrate-Active EnZymes database (CAZy): an expert resource for Glycogenomics. Nucleic Acids Res. 2009;37(Database issue):D233-8. DOI:10.1093/nar/gkn663 |
8. Boraston AB, Bolam DN, Gilbert HJ, and Davies GJ. (2004). Carbohydrate-binding modules: fine-tuning polysaccharide recognition. Biochem J. 2004;382(Pt 3):769-81. DOI:10.1042/BJ20040892 |
9. Hashimoto H (2006). Recent structural studies of carbohydrate-binding modules. Cell Mol Life Sci. 2006;63(24):2954-67. DOI:10.1007/s00018-006-6195-3 |
10. Shoseyov O, Shani Z, and Levy I. (2006). Carbohydrate binding modules: biochemical properties and novel applications. Microbiol Mol Biol Rev. 2006;70(2):283-95. DOI:10.1128/MMBR.00028-05 |
11. Guillén D, Sánchez S, and Rodríguez-Sanoja R. (2010). Carbohydrate-binding domains: multiplicity of biological roles. Appl Microbiol Biotechnol. 2010;85(5):1241-9. DOI:10.1007/s00253-009-2331-y |