Glycosyl hydrolases family 35.

beta-galactosidase; Provisional

Beta-galactosidase GanA [Carbohydrate transport and metabolism].

Beta-galactosidase. This group of beta-galactosidase enzymes belong to the glycosyl hydrolase 42 family. The enzyme catalyzes the hydrolysis of terminal, non-reducing terminal beta-D-galactosidase residues.

Beta-galactosidase, domain 2. This is the second domain of the five-domain beta-galactosidase enzyme that altogether catalyses the hydrolysis of beta(1-3) and beta(1-4) galactosyl bonds in oligosaccharides as well as the inverse reaction of enzymatic condensation and trans-glycosylation. This domain is made up of 16 antiparallel beta-strands and an alpha-helix at its C terminus. The fold of this domain appears to be unique. In addition, the last seven strands of the domain form a subdomain with an immunoglobulin-like (I-type Ig) fold in which the first strand is divided between the two beta-sheets. In penicillin spp this strand is interrupted by a 12-residue insertion which forms an additional edge-strand to the second beta-sheet of the sub-domain. The remainder of the second domain forms a series of beta-hairpins at its N terminus, four strands of which are contiguous with part of the Ig-like sub-domain, forming in total a seven-stranded antiparallel beta-sheet. This domain is associated with family Glyco_hydro_35, which is N-terminal to it, but itself has no metazoan members.

ChainA, Beta-galactosidase [Solanum lycopersicum],3W5F_B Chain B, Beta-galactosidase [Solanum lycopersicum],3W5G_A Chain A, Beta-galactosidase [Solanum lycopersicum],3W5G_B Chain B, Beta-galactosidase [Solanum lycopersicum],6IK5_A Chain A, Beta-galactosidase [Solanum lycopersicum],6IK5_B Chain B, Beta-galactosidase [Solanum lycopersicum]

ChainA, Beta-galactosidase [Solanum lycopersicum],6IK6_B Chain B, Beta-galactosidase [Solanum lycopersicum],6IK7_A Chain A, Beta-galactosidase [Solanum lycopersicum],6IK7_B Chain B, Beta-galactosidase [Solanum lycopersicum],6IK8_A Chain A, Beta-galactosidase [Solanum lycopersicum],6IK8_B Chain B, Beta-galactosidase [Solanum lycopersicum]

Crystalstructure of streptococcal beta-galactosidase in complex with galactose [Streptococcus pneumoniae TIGR4],4E8C_B Crystal structure of streptococcal beta-galactosidase in complex with galactose [Streptococcus pneumoniae TIGR4],4E8D_A Crystal structure of streptococcal beta-galactosidase [Streptococcus pneumoniae TIGR4],4E8D_B Crystal structure of streptococcal beta-galactosidase [Streptococcus pneumoniae TIGR4]

GalactanaseBT0290 [Bacteroides thetaiotaomicron VPI-5482]

Crystalstructure of human beta-galactosidase mutant I51T in complex with Galactose [Homo sapiens],3WF3_B Crystal structure of human beta-galactosidase mutant I51T in complex with Galactose [Homo sapiens],3WF3_C Crystal structure of human beta-galactosidase mutant I51T in complex with Galactose [Homo sapiens],3WF3_D Crystal structure of human beta-galactosidase mutant I51T in complex with Galactose [Homo sapiens],3WF4_A Crystal structure of human beta-galactosidase mutant I51T in complex with 6S-NBI-DGJ [Homo sapiens],3WF4_B Crystal structure of human beta-galactosidase mutant I51T in complex with 6S-NBI-DGJ [Homo sapiens],3WF4_C Crystal structure of human beta-galactosidase mutant I51T in complex with 6S-NBI-DGJ [Homo sapiens],3WF4_D Crystal structure of human beta-galactosidase mutant I51T in complex with 6S-NBI-DGJ [Homo sapiens]

Beta-galactosidase-1-like protein 2 OS=Mus musculus OX=10090 GN=Glb1l2 PE=1 SV=1

Beta-galactosidase-1-like protein 2 OS=Homo sapiens OX=9606 GN=GLB1L2 PE=1 SV=1

Beta-galactosidase 17 OS=Arabidopsis thaliana OX=3702 GN=BGAL17 PE=2 SV=1

Beta-galactosidase 3 OS=Arabidopsis thaliana OX=3702 GN=BGAL3 PE=2 SV=1

Beta-galactosidase 5 OS=Oryza sativa subsp. japonica OX=39947 GN=Os03g0165400 PE=2 SV=1