PDB: 1qbb Compound: chitobiase Classification: GLYCOSYL HYDROLASE Entry date in PDB: 1997-02-12 Resolution [Å]: 2.00 R-Factor: 0.148

CHAIN: - SWISS-PROT/TREMBL: Q54468    KEYWORD: 3D-structure    Chitin degradation    Glycosidase    Hydrolase    Periplasmic    Signal    EC: 3.2.1.52 SCOP: b.1.18.2 All beta proteins    Immunoglobulin-like beta-sandwich    E set domains    E-set domains of sugar-utilizing enzymes    Bacterial chitobiase (N-acetyl-beta-glucoseaminidase), C-terminal domain    Serratia marcescens SCOP: b.2.2.3 All beta proteins    Common fold of diphtheria toxin/transcription factors/cytochrome f    Carbohydrate-binding domain    Bacterial chitobiase, n-terminal domain    Bacterial chitobiase, n-terminal domain    Serratia marcescens SCOP: c.1.8.6 Alpha and beta proteins (a/b)    TIM beta/alpha-barrel    (Trans)glycosidases    beta-N-acetylhexosaminidase catalytic domain    Bacterial chitobiase (beta-N-acetylhexosaminidase)    Serratia marcescens SCOP: d.92.2.1 Alpha and beta proteins (a+b)    Zincin-like    beta-N-acetylhexosaminidase-like domain    beta-N-acetylhexosaminidase domain    Bacterial chitobiase, Domain 2    Serratia marcescens GO:  beta-N-acetylhexosaminidase activity    carbohydrate binding    hydrolase activity, hydrolyzing O-glycosyl compounds    polysaccharide binding    carbohydrate metabolism

Image Source: PDB

1c7s A - percentage of sequence identity: 99
1qba - - percentage of sequence identity: 100