Carbohydrate Binding Module Family 92

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• Author: Xuanwei Mei

• Responsible Curator: Yaoguang Chang

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CAZy DB link

https://www.cazy.org/CBM92.html

Ligand specificities

The first and only hereinto characterized member in the CBM92 family is Cgk16A-CBM92 [1]. The CBM could specifically bind to carrageenan and showed no significant difference in the affinity to κ- and ι-carrageenan.

Structural Features

No three-dimensional structure has been solved in this CBM family at present.

Functionalities

A carrageenan-specific fluorescent probe was successfully constructed by fusing Cgk16A-CBM92 with a green fluorescent protein. The in situ visualization of carrageenan in red alga Kappaphycus alvarezii was realized by utilizing the fluorescent probe [1].

Family Firsts

First Identified

The first member Cgk16A-CBM92 is a component of a κ-carrageenase Cgk16A [2], which was discovered from a marine bacterium Wenyingzhuangia aestuarii OF219.

First Structural Characterization

No three-dimensional structure has been solved in this CBM family at present.

References

1. Mei X, Chang Y, Shen J, Zhang Y, Han J, and Xue C. (2022). Characterization of a Novel Carrageenan-Specific Carbohydrate-Binding Module: a Promising Tool for the In Situ Investigation of Carrageenan. J Agric Food Chem. 2022;70(29):9066-9072. DOI:10.1021/acs.jafc.2c03139 |
2. Shen J, Chang Y, Chen F, and Dong S. (2018). Expression and characterization of a κ-carrageenase from marine bacterium Wenyingzhuangia aestuarii OF219: A biotechnological tool for the depolymerization of κ-carrageenan. Int J Biol Macromol. 2018;112:93-100. DOI:10.1016/j.ijbiomac.2018.01.075 |