Biochemistry

Biochemistry

The scientific study of the chemistry of living matter.

Industry: Biology; Biotechnology

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Biochemistry

polyclonal antibody

Biology; Biochemistry

A heterogeneous immunoglobulin preparation that contains antibodies directed against one or more determinants on an antigen; the product of daughters of several progenitor cells that have been ...

module

Biology; Biochemistry

In protein chemistry, a building block from which larger proteins are constructed; a recurring folding pattern in proteins, examples of which may have amino acid sequences that are homologous or ...

sodium dodecyl sulphate/polyacrylamide-gel electrophoresis (SDS/PAGE)

A technique to dissociate multimeric proteins and to separate all proteins according to their apparent molecular masses. Proteins are treated with sodium dodecyl sulphate (SDS), an anionic detergent, ...

denaturation

Biology; Biochemistry

The destruction of the ordered folding of a protein or nucleic acid that is required for its normal function. Protein denaturation often involves a change from a specific globular or fibrous ...

X-ray crystallography

Biology; Biochemistry

A method for structural analysis of solids that have a repeating unit; dependent upon the ability of electrons to scatter X-rays, and capable of locating in space atoms larger than hydrogen in ...

writhing number (W)

Biology; Biochemistry

A topological property of double-stranded DNA; the number of times one double-stranded segment crosses another in circular DNA, commonly referred to as a supercoil; equal to the linking number minus ...

C-terminal

Biology; Biochemistry

In a polypeptide sequence, that unique residue which is connected to the linear sequence by its amino group, leaving it with a free carboxy group. In practice, the carboxy group of a C-terminal ...