DNA descriptor: parameters and notes

See the tutorial for usage and examples.

Each function includes its purpose, API, inputs, outputs, example code and result description. Prepare any required credentials, local files and optional dependencies; remote results vary with database releases and query time.

Count a nucleotide or amino acid residue

dnakit.databases.sequence_count_residues(*, operation=None, sequence=None, uniprot_id=None, residue, verbose=True)

Parameter	Type	Required / default	Description and constraints
operation	string	None	Operation type
sequence	string	None	Sequence string (DNA/RNA/protein). Optional if uniprot_id is provided.
uniprot_id	string	None	UniProt accession to fetch sequence from (e.g., 'P00533' for EGFR). Optional if sequence is provided.
residue	string	Required	Single character residue to count (e.g., 'C' for cysteine)
verbose	bool	True	Progress flag.

Calculate GC content of a nucleotide sequence

dnakit.databases.sequence_gc_content(*, operation=None, sequence, verbose=True)

Parameter	Type	Required / default	Description and constraints
operation	string	None	Operation type
sequence	string	Required	DNA or RNA sequence string
verbose	bool	True	Progress flag.

Summarize sequence length, composition and type-specific properties

dnakit.databases.sequence_stats(*, operation=None, sequence=None, uniprot_id=None, verbose=True)

Parameter	Type	Required / default	Description and constraints
operation	string	None	Operation type
sequence	string	None	Sequence string. Optional if uniprot_id is provided.
uniprot_id	string	None	UniProt accession to fetch protein sequence from. Optional if sequence is provided.
verbose	bool	True	Progress flag.