blosum50             package:Biostrings             R Documentation

_s_c_o_r_i_n_g _m_a_t_r_i_x _f_o_r _c_o_d_o_n _s_u_b_s_t_i_t_u_t_i_o_n _i_n _p_r_o_t_e_i_n _a_l_i_g_n_m_e_n_t_s

_D_e_s_c_r_i_p_t_i_o_n:

     scoring matrix for codon substitution in protein alignments

_U_s_a_g_e:

     data(blosum50)

_F_o_r_m_a_t:

     A symmetric data frame with 24 rows and columns.

_D_e_t_a_i_l_s:

     taken from the web; many sources available

_E_x_a_m_p_l_e_s:

     data(blosum50)
     blosum50["A","A"]
     blosum50["A","B"]