BStringViews            The BStringViews class
alphabetFrequency       Function to calculate the frequency of letters
                        in a biological sequence
blosum50                scoring matrix for codon substitution in
                        protein alignments
class:BString           The BString, DNAString and RNAString classes
debug_bbuf              Biostrings internals
matchPattern            String searching functions
needwunsQS              quadratic-space, simple gap implementation of
                        Needleman-Wunsch global alignment algorithm
readFASTA               A function to read FASTA formatted files
reverseComplement       Sequence reversing and complementing
yeastSEQCHR1            An annotation data file for CHR1 in the
                        yeastSEQ package
