| EC |
4.2.2.28 |
| Accepted name: |
α-L-rhamnosyl-(1→4)-β-D-glucuronate lyase |
| Reaction: |
an α-L-rhamnose-(1→4)-β-D-glucuronide = α-L-rhamnopyranose + a 4-deoxy-α-L-threo-hex-4-enopyranuronoside |
| Other name(s): |
L-rhamnose-α-1,4-D-glucuronate lyase; FoRham (gene name) |
| Systematic name: |
α-L-rhamnosyl-(1→4)-β-D-glucuronate lyase |
| Comments: |
The enzyme, characterized from the phytopathogenic fungus Fusarium oxysporum, removes the rhamnosyl residue from α-L-rhamnosyl-(1→4)-β-D-glucuronate or from oligosaccharides that contain this motif at the non-reducing end, leaving an unsaturated glucuronate residue. Among its natural substrates is the type II arabinogalactan component of gum arabic. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Kondo, T., Kichijo, M., Maruta, A., Nakaya, M., Takenaka, S., Arakawa, T., Fushinobu, S. and Sakamoto, T. Structural and functional analysis of gum arabic L-rhamnose-α-1,4-D-glucuronate lyase establishes a novel polysaccharide lyase family. J. Biol. Chem. 297:101001 (2021). [DOI] [PMID: 34303708] |
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| [EC 4.2.2.28 created 2022] |
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