Definition

Alternate forms of a gene or genetic locus; the basic unit of genetic variability. Organisms inherit two alleles (maternal and paternal) of every gene, which may or may not be identical. Different alleles may produce protein isozymes (i.e. proteins with different amino acid sequences), alter expression levels of proteins, or have no effect whatsoever.

Cell Therapy in the Treatment of Central Pain

Heritability of Inflammatory Nociception

Opioid Analgesia, Strain Differences