| EC |
2.4.1.391 |
| Accepted name: |
β-1,2-glucosyltransferase |
| Reaction: |
[(1→2)-β-D-glucosyl]n + a D-glucoside = [(1→2)-β-D-glucosyl]n-1 + a β-D-glucosyl-(1→2)-D-glucoside |
| Systematic name: |
1,2-β-D-glucan:D-glucoside 2-β-D-glucosyltransferase (configuration-retaining) |
| Comments: |
The enzyme, characterized from the bacterium Ignavibacterium album, transfers a glucosyl residue from the non-reducing end of a 1,2-β-D-glucan to a glucose residue of an acceptor molecule, forming a β(1,2) linkage. The donor molecule can be as small as sophorose (which contains two glucosyl residues). The enzyme has a very broad specificity for the acceptor, and can act on various aryl- and alkyl-glucosides. In addition, the accepting glucose unit can be in either α or β configuration. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Kobayashi, K., Shimizu, H., Tanaka, N., Kuramochi, K., Nakai, H., Nakajima, M. and Taguchi, H. Characterization and structural analyses of a novel glycosyltransferase acting on the β-1,2-glucosidic linkages. J. Biol. Chem. 298:101606 (2022). [DOI] [PMID: 35065074] |
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| [EC 2.4.1.391 created 2022] |
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