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A review of kynurenine pathway (A) enzymes and (B) metabolites detected across animal kingdoms. If both gene and protein data was available, it was considered detected, and labelled dark pink. If enzymatic and metabolite orthologs may be present (via. computational curation of databases) but have not yet been confirmed in gene or protein levels, it was labelled light pink. If no information could be found yet, it was considered unknown and labelled white.
