an R-cob(III)alamin(out) => an R-cob(III)alamin(in)
an r-cob(iii)alamin(out) => an r-cob(iii)alamin(in)
an R-cob(III)alamin(out) => an R-cob(III)alamin(in)
an r-cob(iii)alamin(out) => an r-cob(iii)alamin(in)