試題詳解

19. One method used to prevent disulfide bond interference with protein sequencing procedures is:
(A) cleaving proteins with proteases that specifically recognize disulfide bonds.
(B) reducing disulfide bridges and preventing their re-formation by further modifying the－SH groups.
(C) removing cysteines from protein sequences by proteolytic cleavage.
(D) protecting the disulfide bridge against spontaneous reduction to cysteinyl sulfhydryl groups.
(E) sequencing proteins that do not contain cysteinyl residues.