these unique isozymes constitute the termini of the phosphocreatine shuttle of sea urchin sperm that is responsible for energy transport from the mitochondrion to the distal flagellum ( tombes , r. m. , and shapiro , b. m. ( 1985 ) cell 41 , 325-334 ; tombes , r. m. , brokaw , c. j. , and shapiro , b. m. ( 1987 ) biophys . j. , 52 , 75-86 ) .
C0026237
mitochondrion
C0007634
cell