Molecular biology

Molecular biology

Contributors in Molecular biology

Molecular biology

A membrane protein that has been discovered by cloning of its gene to be of the same family as known receptors, e.g. the G-protein-coupled receptors, but for which the activating ligand has not been ...

thiosulphate shunt

Biology; Biochemistry

A pathway for anaerobic metabolism of sulphide by bacteria, e.g. in marine sediments; thiosulphate (S 2 O 3 2- ) is an intermediate between sulphide (S 2- ) and sulphate (SO 4 2- ) in reduction to ...

superhelical density

Biology; Biochemistry

A quantitative measure of the degree of supercoiling of a DNA molecule. The value, σ or λ, equals (L-L o )/L o , where L o is the linking number of the relaxed double-stranded DNA molecule and L is ...

specific linking difference

Biology; Biochemistry

model substrate

Biology; Biochemistry

A synthetic substrate that often contains only the minimum necessary features to satisfy the specificity of the enzyme, but sometimes incorporates chemical features to facilitate detection of enzyme ...

shape library

Biology; Biochemistry

An assortment of oligonucleotides, often of random sequence, some of which (or some of the encoded proteins of which) can bind to secondary structures of other oligonucleotides or proteins. The ...

inner filter effect

Biology; Biochemistry

A fluorescence spectroscopy phenomenon; the decrease in fluorescence emission seen in concentrated solutions due to the absorption of exciting light by the fluorophore that is close to the incident ...