Catalysis of the transfer of sialyl residues alpha-2,3-linked to a beta galactosyl residue on the donor to form an alpha-2,3 linkage to a terminal beta galactosyl residue on the acceptor.

The chemical reactions and pathways resulting in the formation of a fatty acid primary amide.

Any process that stops, prevents, or reduces the frequency, rate or extent of DNA recombinase complex disassembly, the disaggregation of a DNA recombinase complex into its constituent components.

Catalysis of the reaction: 2,4-dinitrophenol + H- = 2,4-dinitrophenol hydride Meisenheimer complex. Coenzyme F420 supplies the hydride (H-) in the reaction.

Catalysis of the reaction: gellan = n beta-D-4-deoxy-delta4,5-GlcAp-(1->4)-beta-D-Glcp-(1->4)-alpha-L-Rhap-(1->3)-beta-D-Glcp. This reaction is the eliminative cleavage of beta-D-glucopyranosyl-(1->4)-beta-D-glucopyranosyluronate bonds of gellan backbone, releasing tetrasaccharides containing a 4-deoxy-4,5-unsaturated D-glucopyranosyluronic acid at the non-reducing end; in the product, the abbreviations are D-glucose (Glc), D-glucuronic acid (GlcA), and L-rhamnose (Rha).

Catalysis of the reaction: [beta-(1->4)-D-glucosamine]n-[N-acetyl-D-glucosamine]m = D-glucosamine + [beta-(1->4)-D-glucosamine](n-1)-[N-acetyl-D-glucosamine]m. This reaction is the hydrolysis of chitosan or chitosan oligosaccharides to remove a D-glucosamine residue from the non-reducing termini; chitosan is a linear polysaccharide composed of randomly distributed beta-(1->4)-linked D-glucosamine and N-acetyl-D-glucosamine units.

Catalysis of the hydrolysis of the alpha-(1->3) bonds of alpha-D-mannose residues in mannosyl-oligosaccharide.

Catalysis of the hydrolysis of the alpha-(1->6) bonds of alpha-D-mannose residues in mannosyl-oligosaccharide.

Catalysis of the glycosidic cleavage of the terminal 2-acetamido-2-deoxy-beta-D-glucopyranoside 6-sulfate (6-SO3-GlcNAc) residue from sulfomucin, a sulfated mucin derivative.

Catalysis of the cleavage of glycosidic bonds through a beta-elimination reaction on alginate, a linear polysaccharide consisting of guluronate (G) and mannuronate (M) as the monomer constituents. An oligoalginate is a linear polymer of two, three or four units of (1->4)-alpha-L-guluronic acid and beta-D-mannuronic acid, releasing monosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enopyranuronosyl groups at their ends.

Catalysis of the cleavage of a carbon-oxygen bond in ulvan, a carbohydrate composed of a repeating structure of [->4)-beta-D-GlcA-(1,4)-alpha-L-Rha 3S-(1->4)-alpha-L-IdoA-(1->4)-alpha-L-Rha 3S-(1-]n. Continued digest of ulvan with an enzyme that can catalyze this reaction results in ulvanobiouronic acid A 3-sulfate [->4)-beta-D-GlcpA-(1->4)-alpha-L-Rhap 3-sulfate-(1-]n with 4-deoxy-L-threo-hex-4-enopyranosiduronic acid at the non-reducing end.

Catalysis of the hydrolysis of the alpha-(1->4) linkage of the terminal, non-reducing alpha-D-mannose residues in alpha-D-mannosides.

Catalysis of the reaction: 2 reduced coenzyme F420 + O2 = 2 coenzyme F420 + 2 H2O.

Catalysis of the reaction: coenzyme F390-G = GMP + coenzyme F420.

Catalysis of the reaction: coenzyme F390-A = AMP + coenzyme F420.

Catalysis of the reaction: N,N'-diacetylchitobiose (GlcNac2) + H2O = acetate + 2-acetamido-4-O-(2-amino-2-deoxy-beta-D-glucopyranosyl)-2-deoxy-D-glucose (GlcN-GlcNAc).

Catalysis of the hydrolysis of brefeldin A to produce brefeldin A acid. Brefeldin A is also known as gamma,4-dihydroxy-2-(6-hydroxy-1-heptenyl)-4-cyclopentanecrotonic acid lambda-lactone.

The chemical reactions and pathways involving diacetylchitobiose, the N,N'-diacetylated derivative of chitobiose.

Catalysis of the reaction: R1-L-rhamnose-(1->3)-alpha-L-rhamnose-R2 + H2O = R1-L-rhamnose + L-rhamnose-R2. This reaction is the hydrolysis of an alpha-(1->3) linkage between two rhamnose residues in a polysaccharide chain.

Catalysis of the reaction: glucosyl-N-acetylglucosamine + H2O = glucosamine + N-acetylglucosamine.