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single nucleotide change alters one amino acid in a protein

A missense mutation is a type of genetic alteration where a single nucleotide change results in the substitution of one amino acid for another in the protein produced by a gene. This can affect the protein's function, potentially leading to diseases or conditions, such as certain forms of alopecia, where hair loss occurs due to disrupted protein function in hair follicles.

Related Terms

• point mutation
• nonsense mutation
• silent mutation
• frameshift mutation