the e7 phosphoprotein of the nononcogenic hpv-6b , which is generally associated with benign genital warts , is similar to the hpv-16 e7 in amino acid sequence but differs dramatically in migration in sodium dodecyl sulfate-polyacrylamide gels , sedimentation in nondenaturing glycerol gradients , and the ability to bind the rb protein .
C0031689
phosphoprotein
C0080113
rb protein