Glycosyl hydrolase family 130. This subfamily contains glycosyl hydrolase family 130 (GH130) proteins, as classified by the carbohydrate-active enzymes database (CAZY), are phosphorylases and hydrolases for beta-mannosides, and include beta-1,4-mannosylglucose phosphorylase (EC 2.4.1.281), beta-1,4-mannooligosaccharide phosphorylase (EC 2.4.1.319), among others that have yet to be characterized. They possess 5-bladed beta-propeller domains similar to families 32, 43, 62, 68, 117 (GH32, GH43, GH62, GH68, GH117). GH130 enzymes are involved in the bacterial utilization of mannans or N-linked glycans. Beta-1,4-mannosylglucose phosphorylase is involved in degradation of beta-1,4-D-mannosyl-N-acetyl-D-glucosamine linkages in the core of N-glycans; it produces alpha-mannose 1-phosphate and glucose from 4-O-beta-D-mannosyl-D-glucose and inorganic phosphate, using a critical catalytic Asp as a proton donor. This family includes Ruminococcus albus 4-O-beta-D-mannosyl-D-glucose phosphorylase (RaMP1) and beta-(1,4)-mannooligosaccharide phosphorylase (RaMP2), enzymes that phosphorolyze beta-mannosidic linkages at the non-reducing ends of their substrates, and have substantially diverse substrate specificity that are determined by three loop regions.

Glycoside hydrolase family 130. Members of the glycosyl hydrolase family 130, as classified by the carbohydrate-active enzymes database (CAZY), are phosphorylases and hydrolases for beta-mannosides, and include beta-1,4-mannosylglucose phosphorylase (EC 2.4.1.281), beta-1,4-mannooligosaccharide phosphorylase (EC 2.4.1.319), beta-1,4-mannosyl-N-acetyl-glucosamine phosphorylase (EC 2.4.1.320), beta-1,2-mannobiose phosphorylase (EC 2.4.1.-), beta-1,2-oligomannan phosphorylase (EC 2.4.1.-) and beta-1,2-mannosidase (EC 3.2.1.-). They possess 5-bladed beta-propeller domains similar to families 32, 43, 62, 68, 117 (GH32, GH43, GH62, GH68, GH117). GH130 enzymes are involved in the bacterial utilization of mannans or N-linked glycans. Beta-1,4-mannosylglucose phosphorylase is involved in degradation of beta-1,4-D-mannosyl-N-acetyl-D-glucosamine linkages in the core of N-glycans; it produces alpha-mannose 1-phosphate and glucose from 4-O-beta-D-mannosyl-D-glucose and inorganic phosphate, using a critical catalytic Asp as a proton donor.

Glycosyl hydrolase family 130; uncharacterized. This subfamily contains glycosyl hydrolase family 130 (GH130) proteins, as classified by the carbohydrate-active enzymes database (CAZY), most of which are as yet uncharacterized. GH130 enzymes are phosphorylases and hydrolases for beta-mannosides, and include beta-1,4-mannosylglucose phosphorylase (EC 2.4.1.281), beta-1,4-mannooligosaccharide phosphorylase (EC 2.4.1.319), beta-1,4-mannosyl-N-acetyl-glucosamine phosphorylase (EC 2.4.1.320), beta-1,2-mannobiose phosphorylase (EC 2.4.1.-), beta-1,2-oligomannan phosphorylase (EC 2.4.1.-) and beta-1,2-mannosidase (EC 3.2.1.-). They possess 5-bladed beta-propeller domains similar to families 32, 43, 62, 68, 117 (GH32, GH43, GH62, GH68, GH117). GH130 enzymes are involved in the bacterial utilization of mannans or N-linked glycans. Beta-1,4-mannosylglucose phosphorylase is involved in degradation of beta-1,4-D-mannosyl-N-acetyl-D-glucosamine linkages in the core of N-glycans; it produces alpha-mannose 1-phosphate and glucose from 4-O-beta-D-mannosyl-D-glucose and inorganic phosphate, using a critical catalytic Asp as a proton donor.

AGE domain; N-acyl-D-glucosamine 2-epimerase domain; Responsible for intermediate epimerization during biosynthesis of N-acetylneuraminic acid. Catalytic mechanism is believed to be via nucleotide elimination and readdition and is ATP modulated. AGE is structurally and mechanistically distinct from the other four types of epimerases. The AGE domain monomer is composed of an alpha(6)/alpha(6)-barrel, the structure of which is also found in glucoamylase and cellulase. The active form is a homodimer. The alignment also contains subtype III mannose 6-phosphate isomerases.

Predicted glycosyl hydrolase, GH43/DUF377 family [Carbohydrate transport and metabolism].

Crystalstructure of Ruminococcus albus 4-O-beta-D-mannosyl-D-glucose phosphorylase (RaMP1) [Ruminococcus albus 7 = DSM 20455],5AYC_A Crystal structure of Ruminococcus albus 4-O-beta-D-mannosyl-D-glucose phosphorylase (RaMP1) in complexes with sulfate and 4-O-beta-D-mannosyl-D-glucose [Ruminococcus albus 7 = DSM 20455]

Crystalstructure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with Man-Glc+PO4 [Bacteroides fragilis NCTC 9343],3WAS_B Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with Man-Glc+PO4 [Bacteroides fragilis NCTC 9343],3WAT_A Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with Man+Glc [Bacteroides fragilis NCTC 9343],3WAT_B Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with Man+Glc [Bacteroides fragilis NCTC 9343],3WAU_A Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with M1P [Bacteroides fragilis NCTC 9343],3WAU_B Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with M1P [Bacteroides fragilis NCTC 9343],4KMI_A Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with PO4 [Bacteroides fragilis NCTC 9343],4KMI_B Crystal structure of 4-O-beta-D-mannosyl-D-glucose phosphorylase MGP complexed with PO4 [Bacteroides fragilis NCTC 9343]

Crystalstructure of sugar epimerase from ruminal bacterium [Ruminococcus albus],3VW5_B Crystal structure of sugar epimerase from ruminal bacterium [Ruminococcus albus],3VW5_C Crystal structure of sugar epimerase from ruminal bacterium [Ruminococcus albus]

ChainA, Cellobiose 2-epimerase [Caldicellulosiruptor saccharolyticus DSM 8903]

CrystalStructure of cellobiose 2-epimerase from Caldicellulosiruptor saccharolyticus DSM 8903 [Caldicellulosiruptor saccharolyticus DSM 8903]

4-O-beta-D-mannosyl-D-glucose phosphorylase OS=Ruminococcus albus (strain ATCC 27210 / DSM 20455 / JCM 14654 / NCDO 2250 / 7) OX=697329 GN=Rumal_0852 PE=1 SV=1

4-O-beta-D-mannosyl-D-glucose phosphorylase OS=Bacteroides fragilis (strain ATCC 25285 / DSM 2151 / CCUG 4856 / JCM 11019 / NCTC 9343 / Onslow) OX=272559 GN=BF0772 PE=1 SV=1

Cellobiose 2-epimerase OS=Eubacterium cellulosolvens OX=29322 GN=ce13 PE=1 SV=1

Cellobiose 2-epimerase OS=Ruminococcus albus (strain ATCC 27210 / DSM 20455 / JCM 14654 / NCDO 2250 / 7) OX=697329 GN=Rumal_0019 PE=3 SV=1

Cellobiose 2-epimerase OS=Ruminococcus albus OX=1264 GN=ce-ne1 PE=1 SV=1