Normalized Codon Adaptation Index (nCAI)

nCAI = CAIhost / CAIself

HOW TO CITE: Truong Nguyen P, Garcia-Vallve S, Puigbo P. (2021) An unsupervised algorithm for host identification in flaviviruses. Life, 11(5):442.

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Insert your sequences in FASTA format

Insert codon usage table (codon usage database format)

Choose genetic code

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