This was submitted as the first project for my Bioinformatics Programming course in the Spring 2019 semester. Given an amino acid sequence, it calculates the chemical formula.
dicts.py contains dictionaries to translate between DNA sequences, RNA sequences, amino acid sequences, and chemical formulas.
proteinformula.py contains the core functionality of calculating protein chemical formulas.
protformgui.pyw contains a GUI for accessing the functions. If you're having difficulty running the program, try double-clicking on the file from the file explorer.
protformcmd.py allows for processing of files from the command line. The form of commands is protformcmd.py inputfile outputfile mode where inputfile is the name of the file containing the sequence to be translated, outputfile is the name of the file to save the output to, and mode specifies the format of the input: aa1 for 1-letter amino acid codes, aa3 for 3-letter amino acid codes, dna for DNA bases, and rna for RNA bases. The mode parameter is optional and defaults to aa1. Example usage: protformcmd.py mydnaseq.txt output.txt dna or protformcmd.py myprotein.txt output.txt. Note that the command-line utility will overwrite the output file if it already exists.