Biochemistry

Biochemistry

The scientific study of the chemistry of living matter.

Industry: Biology; Biotechnology

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Biochemistry

Teichoic acid

Biology; Biochemistry

A linear polymer present in Gram-positive bacterial capsules, cell walls and membranes, characterised by polyols (glycerol, ribitol, sugars), sometimes derivatized as D-alanine esters, and linked ...

One of two or more structural variants of an enzyme that can occur in the same individual, often relatively specific for a particular tissue, each with unique kinetic characteristics; e.g. the heart ...

Methionine bristles

Biology; Biochemistry

The cluster of methionine side chains that are proposed to protrude from the surface of a signal recognition particle and provide a plastic hydrophobic environment that can interact with the ...

Partition chromatography

Biology; Biochemistry

A technique for separation of molecules based on their differing ratios of solubility in two immiscible solvent phases. A stationary phase is coated or impregnated with one solvent phase and the ...

Iontophoresis

Biology; Biochemistry

The transport of ions across a semi-permeable membrane under the influence of an electric charge. As ions are driven across the membrane by the electric field, there is also the accompanying ...

Periodic acid-Schiff (PAS) stain

Biology; Biochemistry

A reagent for staining of carbohydrate in polyacrylamide gels or histological preparations; periodic acid first oxidises vicinal hydroxy groups to generate aldehydes that can then condense with ...

Nick-translation

Biology; Biochemistry

A technique often used for introduction of 32 P into a DNA duplex involving cleavage of a phosphodiester bond of one strand, excision of the newly exposed nucleoside 5'-phosphate residue, and ...