Molecular biology

Molecular biology

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Molecular biology

abzyme

Biology; Biochemistry

An antibody with catalytic properties; often raised against a hapten that chemically resembles the transition state of the intended substrate so as to force a substrate into that transition state.

growth cone

Biology; Biochemistry

In a developing or regenerating neuron, the leading edge of a focus of dendrite extension, which is responsive to environmental cues that determine its growth rate and the direction of that growth.

chemical shift

Biology; Biochemistry

In nuclear magnetic resonance, the modulation of field strength necessary to achieve the resonance frequency characteristic of a particular atom in a particular chemical, i.e. bonding, environment.

petite mutation

Biology; Biochemistry

Mutation observed in a strain of yeast that is deficient in mitochondrial protein synthesis. The mutants were instrumental in the discovery of mitochondrial DNA and mitochondrial protein synthesis.

binding protein

Biology; Biochemistry

A circulating protein that carries its ligand from one site in the body to another, e.g. thyroxine-binding protein; also any protein specialized for binding a ligand, e.g. a calcium-binding protein.

B-cell

Biology; Biochemistry

A lymphocyte that can be activated to proliferate and to synthesize and secrete a specific immunoglobulin G by binding of the antigen that is recognized by the immunoglobulin G receptor on the cell.

B-lymphocyte

Biology; Biochemistry

A lymphocyte that can be activated to proliferate and to synthesize and secrete a specific immunoglobulin G by binding of the antigen that is recognized by the immunoglobulin G receptor on the cell.