Challenge: Amino Acid Composition for Multiple Proteins
In proteomics, analyzing the amino acid composition of protein sequences is crucial for understanding protein properties and comparing different proteins. Manually calculating these values for many sequences is tedious and error-prone. Automating this process with Python ensures consistency and efficiency, especially when working with large datasets or proteome-wide analyses. In this challenge, you will automate the calculation of amino acid composition for multiple protein sequences, preparing you for high-throughput protein analysis tasks.
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Write a function that takes a list of protein sequence strings and returns a list of dictionaries, each mapping amino acids to their percentage composition in the sequence.
- For each sequence in the input list, count only valid amino acid characters ("A", "C", "D", "E", "F", "G", "H", "I", "K", "L", "M", "N", "P", "Q", "R", "S", "T", "V", "W", "Y").
- Ignore any invalid or unknown characters in the sequences.
- For each valid amino acid found, calculate its percentage as (count of that amino acid / total valid amino acids) * 100.
- If a sequence contains no valid amino acids, return an empty dictionary for that sequence.
- Return a list of dictionaries, each corresponding to the percentage composition of amino acids in the respective input sequence.
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In proteomics, analyzing the amino acid composition of protein sequences is crucial for understanding protein properties and comparing different proteins. Manually calculating these values for many sequences is tedious and error-prone. Automating this process with Python ensures consistency and efficiency, especially when working with large datasets or proteome-wide analyses. In this challenge, you will automate the calculation of amino acid composition for multiple protein sequences, preparing you for high-throughput protein analysis tasks.
Swipe to start coding
Write a function that takes a list of protein sequence strings and returns a list of dictionaries, each mapping amino acids to their percentage composition in the sequence.
- For each sequence in the input list, count only valid amino acid characters ("A", "C", "D", "E", "F", "G", "H", "I", "K", "L", "M", "N", "P", "Q", "R", "S", "T", "V", "W", "Y").
- Ignore any invalid or unknown characters in the sequences.
- For each valid amino acid found, calculate its percentage as (count of that amino acid / total valid amino acids) * 100.
- If a sequence contains no valid amino acids, return an empty dictionary for that sequence.
- Return a list of dictionaries, each corresponding to the percentage composition of amino acids in the respective input sequence.
Рішення
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