different antisera raised against various regions of the human c-myc protein were used to identify four human c-myc proteins with apparent molecular masses in sodium dodecyl sulfate-polyacrylamide gels ranging from 64 to 68 kilodaltons ( phosphoproteins pp64 and pp67 and nonphosphorylated proteins p65 and p68 ) .
C0031689
phosphoproteins
C0033684
proteins