Glycosyl hydrolase 36 superfamily, catalytic domain. This is the catalytic region of the superfamily of enzymes referred to as GH36. UniProtKB:Q76IQ9 is a chitobiose phosphorylase that catalyzes the reversible phosphorolysis of chitobiose into alpha-GlcNAc-1-phosphate and GlcNAc with inversion of the anomeric configuration. The full-length enzyme comprises a beta sandwich domain and an (alpha/alpha)(6) barrel domain. The alpha-helical barrel component of the domain, this family, is the catalytic region.

N-terminal domain of cellobiose phosphorylase (CBP) and similar proteins. The glycoside hydrolase family 94 (previously known as glycosyltransferase family 36) includes cellobiose phosphorylase (EC:2.4.1.20) or cellobiose:phosphate alpha-D-glucosyltransferase, or CepA. This N-terminal domain is involved in oligomerization and may play a role in catalysis, but it is separate from the catalytic domain [an (alpha/alpha)(6) barrel]. Cellobiose phosphorylase participates in the degradation of cellulose, it catalyzes the phosphate dependent hydrolysis of cellobiose into alpha-D-glucose-1-phosphate and D-glucose, a reversible reaction.

Cellobiose phosphorylase [Carbohydrate transport and metabolism].

Glycosyltransferase family 36. The glycosyltransferase family 36 includes cellobiose phosphorylase (EC:2.4.1.20), cellodextrin phosphorylase (EC:2.4.1.49), chitobiose phosphorylase (EC:2.4.1.-). Many members of this family contain two copies of this domain.

N-terminal domain of chitobiose phosphorylase (ChBP) and similar proteins. The glycoside hydrolase family 94 (previously known as glycosyltransferase family 36) includes chitobiose phosphorylase (EC:2.4.1.-). This N-terminal domain is involved in oligomerization and may play a role in catalysis, but it is separate from the catalytic domain [an (alpha/alpha)(6) barrel]. Chitobiose phosphorylase catalyzes the reversible phosphate dependent hydrolysis of chitobiose [(GlcNAc)2] into alpha-GlcNAc-1-phosphate and GlcNAc. In some organisms, ChBP may be involved in the production of GlcNac-6-phosphate in intracellular pathways.

CrystalStructure of Cellvibrio gilvus Cellobiose Phosphorylase Crystallized from Ammonium Sulfate [Cellulomonas gilvus],2CQS_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Crystallized from Ammonium Sulfate [Cellulomonas gilvus],2CQT_A Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Crystallized from Sodium/Potassium Phosphate [Cellulomonas gilvus],2CQT_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Crystallized from Sodium/Potassium Phosphate [Cellulomonas gilvus],3QFY_A Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Sulfate and Isofagomine [Cellulomonas gilvus],3QFY_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Sulfate and Isofagomine [Cellulomonas gilvus],3QFZ_A Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Sulfate and 1-Deoxynojirimycin [Cellulomonas gilvus],3QFZ_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Sulfate and 1-Deoxynojirimycin [Cellulomonas gilvus],3QG0_A Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Phosphate and 1-Deoxynojirimycin [Cellulomonas gilvus],3QG0_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Complexed with Phosphate and 1-Deoxynojirimycin [Cellulomonas gilvus]

CrystalStructure of Cellvibrio gilvus Cellobiose Phosphorylase W488F mutant [Cellulomonas gilvus ATCC 13127],3ACS_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase W488F mutant [Cellulomonas gilvus ATCC 13127]

CrystalStructure of Cellvibrio gilvus Cellobiose Phosphorylase Histidine mutant [Cellulomonas gilvus ATCC 13127],3ACT_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase Histidine mutant [Cellulomonas gilvus ATCC 13127]

CrystalStructure of Cellvibrio gilvus Cellobiose Phosphorylase triple mutant [Cellulomonas gilvus ATCC 13127],3AFJ_B Crystal Structure of Cellvibrio gilvus Cellobiose Phosphorylase triple mutant [Cellulomonas gilvus ATCC 13127]

ChainA, Cellobiose phosphorylase [Acetivibrio thermocellus],3QDE_B Chain B, Cellobiose phosphorylase [Acetivibrio thermocellus]

Cellobiose phosphorylase OS=Thermotoga neapolitana (strain ATCC 49049 / DSM 4359 / NBRC 107923 / NS-E) OX=309803 GN=cbpA PE=1 SV=1

N,N'-diacetylchitobiose phosphorylase OS=Vibrio proteolyticus OX=671 GN=chbP PE=1 SV=1

N,N'-diacetylchitobiose phosphorylase OS=Vibrio furnissii OX=29494 GN=chbP PE=1 SV=1

Cyclic beta-(1,2)-glucan synthase NdvB OS=Rhizobium meliloti (strain 1021) OX=266834 GN=ndvB PE=1 SV=2

Cellobionic acid phosphorylase OS=Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) OX=367110 GN=NCU09425 PE=1 SV=1