aaseq_is_valid          Check protein sequences for non-standard amino
                        acids
calc_amphiphilicity     Calculate amphiphilicity (or hydrophobic
                        moment)
calc_hydrophobicity     Calculate the hydrophobicity
calc_mw                 Calculate the molecular weight
calc_net_charge         Calculate the net charge
calc_pI                 Calculate the isoelectric point (pI)
calc_pseudo_comp        Calculate the pseudo amino acid composition
calculate_features      Calculate a set of numerical features from
                        protein sequences
chunk_rows              Determine row breakpoints for dividing a
                        dataset into chunks for parallel processing
df_to_faa               Save a dataframe in FASTA format
predict_amps            Predict the antimicrobial peptide probability
                        of a protein
read_faa                Read FASTA amino acids file into a dataframe
remove_nonstandard_aa   Remove non standard amino acids from protein
                        sequences
remove_stop_codon       Remove stop codon at end of sequence
