EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.37 | 8.61 | - |
4-nitrophenyl-beta-D-xylopyranoside | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 37.3 | - |
xylotriose | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 80.14 | - |
xylobiose | 45°C | Halalkalibacterium halodurans |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.2.1.37 | Halalkalibacterium halodurans | - |
isoform xylB | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.37 | 4-nitrophenyl beta-D-xylopyranoside + H2O | - |
Halalkalibacterium halodurans | 4-nitrophenol + beta-D-xylose | - |
? | |
3.2.1.37 | additional information | enzyme has transxylosylation activity leading to formation of O-glycosidic linkages as in 4-nitrophenyl-3-O-beta-D-xylopyranosyl-beta-D-xylopyranoside, 4-nitrophenyl-2-O-beta-D-xylopyranosyl-beta-D-xylopyranoside, 4-nitrophenyl-(4-O-beta-D-xylopyranosyl-2-O-beta-D-xylopyranosyl)-beta-D-xylopyranoside from substrate 4-nitrophenyl-beta-D-xylopyranoside. Compared to xylobiose, xylotriose is a better donor molecule for XylB-mediated transxylosylation of primary alcohols presenting chain length from 1- to 5-carbon atoms | Halalkalibacterium halodurans | ? | - |
? | |
3.2.1.37 | wheat bran + H2O | - |
Halalkalibacterium halodurans | D-xylose + ? | - |
? | |
3.2.1.37 | xylobiose + H2O | - |
Halalkalibacterium halodurans | 2 D-xylose | - |
? | |
3.2.1.37 | xylotriose + H2O | - |
Halalkalibacterium halodurans | 3 D-xylose | - |
? |
EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.37 | 0.32 | - |
xylobiose | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 4.91 | - |
xylotriose | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 5.26 | - |
4-nitrophenyl-beta-D-xylopyranoside | 45°C | Halalkalibacterium halodurans |
EC Number | kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.37 | 0.004 | - |
xylobiose | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 0.132 | - |
xylotriose | 45°C | Halalkalibacterium halodurans | |
3.2.1.37 | 0.6 | - |
4-nitrophenyl-beta-D-xylopyranoside | 45°C | Halalkalibacterium halodurans |