[Rare electrophoretic variants of the proteins adenylate kinase 1, phosphoglucomutase 1 and 2, and transferrin (AK1, PGM1, PGM2, Tf) in two populations of French Guiana].

Two small populations of inner French Guiana were investigated for red cell enzymes and serum proteins. Rare variants were found in four systems (AK1, PGM1, PGM2, Tf). Similarities between some of these variants and those found in other Amerindian populations indicate that these genetic markers may be valuable in studies of Amerindians. A mutation rate has been estimated from the results.