remove_nonstandard_aa: Remove non standard amino acids from protein sequences
In ampir: Predict Antimicrobial Peptides

Description Usage Arguments Value Examples

This function removes anything that is not one of the 20 standard amino acids in protein sequences

1	remove_nonstandard_aa(df)

`df`	A dataframe which contains protein sequence names as the first column and amino acid sequence as the second column

a dataframe like the input dataframe but with removed proteins that contained non standard amino acids

non_standard_df <- readRDS(system.file("extdata/non_standard_df.rds", package = "ampir"))

# non_standard_df
#       seq_name            seq_aa
# [1] G1P6H5_MYOLU    MALTVRIQAACLLLLLLASLTSYSLLLSQTTQLADLQTQ....
# [2] fake_sequence   MKVTHEUSYR$GXMBIJIDG*M80-%

remove_nonstandard_aa(non_standard_df)
#       seq_name        seq_aa
# [1] G1P6H5_MYOLU    MALTVRIQAACLLLLLLASLTSYSLLLSQTTQLADLQTQ....