Laminarinase, member of the glycosyl hydrolase family 16. Laminarinase, also known as glucan endo-1,3-beta-D-glucosidase, is a glycosyl hydrolase family 16 member that hydrolyzes 1,3-beta-D-glucosidic linkages in 1,3-beta-D-glucans such as laminarins, curdlans, paramylons, and pachymans, with very limited action on mixed-link (1,3-1,4-)-beta-D-glucans.

glycosyl hydrolase family 16. The O-Glycosyl hydrolases are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A glycosyl hydrolase classification system based on sequence similarity has led to the definition of more than 95 different families inlcuding glycosyl hydrolase family 16. Family 16 includes lichenase, xyloglucan endotransglycosylase (XET), beta-agarase, kappa-carrageenase, endo-beta-1,3-glucanase, endo-beta-1,3-1,4-glucanase, and endo-beta-galactosidase, all of which have a conserved jelly roll fold with a deep active site channel harboring the catalytic residues.

Beta-glucanase, GH16 family [Carbohydrate transport and metabolism].

Streptomyces laminarinase-like, member of glycosyl hydrolase family 16. Proteins similar to Streptomyces sioyaensis beta-1,3-glucanase (laminarinase) present in Actinomycetales as well as Peziomycotina. Laminarinases belong to glycosyl hydrolase family 16 and hydrolyze the glycosidic bond of the 1,3-beta-linked glucan, a major component of fungal and plant cell walls and the structural and storage polysaccharides (laminarin) of marine macro-algae. Members of the GH16 family have a conserved jelly roll fold with an active site channel.

Coelomic cytolytic factor, member of glycosyl hydrolase family 16. Subgroup of glucanases of unknown function that are related to beta-GRP (beta-1,3-glucan recognition protein), but contain active site residues. Beta-GRPs are one group of pattern recognition receptors (PRRs), also referred to as biosensor proteins, that complexes with pathogen-associated beta-1,3-glucans and then transduces signals necessary for activation of an appropriate innate immune response. Beta-GRPs are present in insects and lack all catalytic residues. This subgroup contains related proteins that still contain the active site and are widely distributed in eukaryotes. Their structures adopt a jelly roll fold with a deep active site channel harboring the catalytic residues, like those of other glycosyl hydrolase family 16 members.

ChainAAA, Beta-glycosidase [Bacteroides caccae]

Structureof the catalytic domain of an endo-1,3-beta-glucanase (laminarinase) from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1],4DFS_B Structure of the catalytic domain of an endo-1,3-beta-glucanase (laminarinase) from Thermotoga petrophila RKU-1 [Thermotoga petrophila RKU-1]

Crystalstructure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZX_B Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZY_A Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZY_B Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZY_C Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZY_D Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3AZZ_A Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with gluconolactone [Thermotoga maritima MSB8],3AZZ_B Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with gluconolactone [Thermotoga maritima MSB8],3AZZ_C Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with gluconolactone [Thermotoga maritima MSB8],3AZZ_D Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with gluconolactone [Thermotoga maritima MSB8],3B00_A Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with cetyltrimethylammonium bromide [Thermotoga maritima MSB8],3B00_B Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with cetyltrimethylammonium bromide [Thermotoga maritima MSB8],3B00_C Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with cetyltrimethylammonium bromide [Thermotoga maritima MSB8],3B00_D Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 in complex with cetyltrimethylammonium bromide [Thermotoga maritima MSB8],3B01_A Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3B01_B Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3B01_C Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8],3B01_D Crystal structure of the laminarinase catalytic domain from Thermotoga maritima MSB8 [Thermotoga maritima MSB8]

TheX-ray structure of endo-beta-1,3-glucanase from Pyrococcus furiosus [Pyrococcus furiosus],2VY0_B The X-ray structure of endo-beta-1,3-glucanase from Pyrococcus furiosus [Pyrococcus furiosus]

ChainA, Laminarinase [Rhodothermus marinus],3ILN_B Chain B, Laminarinase [Rhodothermus marinus]

Keratan-sulfate endo-1,4-beta-galactosidase OS=Sphingobacterium multivorum OX=28454 PE=1 SV=1

Beta-glucanase OS=Rhodothermus marinus OX=29549 GN=bglA PE=1 SV=1

Glucan endo-1,3-beta-glucosidase A1 OS=Niallia circulans OX=1397 GN=glcA PE=1 SV=1

Clotting factor G alpha subunit OS=Tachypleus tridentatus OX=6853 PE=1 SV=1

Beta-1,3-glucan-binding protein OS=Penaeus monodon OX=6687 PE=2 SV=1