Additional Genetic Variation of Human Serum Transferrin
W. Carey Parker 1 and
Alexander G. Bearn 1
1 Rockefeller Institute, New York 21
A new molecular species of human transferrin, Tf $$Word$$, is described. Starch gel electrophoresis under high-voltage conditions permits the new variant to be clearly distinguished from previously described variants of closely similar mobilities. The presence of a faint iron-binding component which migrates slightly more rapidly than the principal transferrin with which it is associated is also described.