Glycoside Hydrolase Family 116

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• Author: ^^^Beatrice Cobucci-Ponzano^^^
• Responsible Curator: ^^^Marco Moracci^^^

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Glycoside Hydrolase Family GH116
Clan	GH-x
Mechanism	retaining
Active site residues	known
CAZy DB link
https://www.cazy.org/GH116.html

Substrate specificities

This family of glycoside hydrolases was recently discovered characterising a new β-glucosidase from the hyperthermophilic archaeon Sulfolobus solfataricus [1]. This enzyme is distantly related to the human non-lysosomal bile acid b-glucosidase GBA2, also known as glucocerebrosidase [2]. GH116 contains acid β-glucosidase (EC 3.2.1.45), β-glucosidase (EC 3.2.1.21) and β-xylosidase (EC 3.2.1.37) from the three domains of life.

Kinetics and Mechanism

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Catalytic Residues

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Three-dimensional structures

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Family Firsts

First stereochemistry determination

Cite some reference here, with a short (1-2 sentence) explanation [3].

First catalytic nucleophile identification

Cite some reference here, with a short (1-2 sentence) explanation [4].

First general acid/base residue identification

Cite some reference here, with a short (1-2 sentence) explanation [5].

First 3-D structure

Cite some reference here, with a short (1-2 sentence) explanation [6].

References

3. Comfort DA, Bobrov KS, Ivanen DR, Shabalin KA, Harris JM, Kulminskaya AA, Brumer H, and Kelly RM. (2007). Biochemical analysis of Thermotoga maritima GH36 alpha-galactosidase (TmGalA) confirms the mechanistic commonality of clan GH-D glycoside hydrolases. Biochemistry. 2007;46(11):3319-30. DOI:10.1021/bi061521n |

4. Sinnott, M.L. (1990) Catalytic mechanisms of enzymic glycosyl transfer. Chem. Rev. 90, 1171-1202. DOI: 10.1021/cr00105a006

5. He S and Withers SG. (1997). Assignment of sweet almond beta-glucosidase as a family 1 glycosidase and identification of its active site nucleophile. J Biol Chem. 1997;272(40):24864-7. DOI:10.1074/jbc.272.40.24864 |