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Table 1 Performance of GH115 α-glucuronidases described in literature towards polymeric and oligomeric xylan substrates

From: The two Rasamsonia emersonii α-glucuronidases, ReGH67 and ReGH115, show a different mode-of-action towards glucuronoxylan and glucuronoxylo-oligosaccharides

α-glucuronidases ScAgu115 PsAgu115 SpAgu115 BoAgu115 ReGH115
Organism Schizophyllum commune Pichia stipitis Streptomyces pristinaespiralis Bacteroides ovatus Rasamsonia emersonii
Division Basidiomycete Ascomycete Actinobacterium Bacteroidete Ascomycete
Mw (Kda) 125 120 nt 199 150
pH optimum nt 4.4 nt nt 4.0
T optimum (°C) nt 60 nt nt 65-70
3D-structure No No No Yes No
Activity on xylan
 BeWX nt + + nt +
 BiWX nt nt + nt +
 SpW + nt nt nt nt
 WWX nt nt nt + nt
Activity on U4m2X n a
 U4m2 nt nt nt + +
 U4m2X nt nt nt + +
 XU4m2 + + nt nt +
 U4m2XX + + nt + +
 XU4m2X ++ + nt ++ +
 XXU4m2 nt nt nt nt +
 U4m2XXX nt nt nt ++ nt
 XU4m2XX ++ + nt nt nt
 XXU4m2X nt nt + nt +
 XXU4m2XX ++ + nt nt nt
  1. Active towards substrate (+), preferential degradation (++)
  2. nt Not tested, BeWX Beechwood xylan, BiWX Birchwood xylan, SpW Spruce wood, WWX Willow wood xylan
  3. ScAgu115 Chong et al. [16]; Tenkanen and Siika-aho [15]; PsAgu115 Ryabova et al. [14]; Kolenová et al. [23]; SpAgu115 Fujimoto et al. [12]; BoAgu115 Rogowski et al. [13]
  4. aNomenclature used is according to Faure et al. [21]