EBIProteins Get Mutagenesis

Get mutagenesis experiment data for a protein from the EBI Proteins API. Returns experimentally characterized mutations with their functional effects, including gain/loss of function, binding changes, and structural impacts. Data is curated from UniProtKB with literature evidence. Essential for understanding structure-function relationships. Example: P04637 (TP53) returns 651 mutagenesis annotations showing effects of each mutation on p53 function.