Fusion protein. Definition

Medical Definition: Fusion protein

Protein made with a fusion gene, which is created by combining parts of two different genes. The fusion genes can occur naturally in the body by transfer of DNA between chromosomes. For example, the BCR-ABL is found in some types of leukemia is a fusion gene that produces the fusion protein BCR-ABL. Fusion genes and proteins can also be produced in the laboratory by combining genes or parts of genes from one organism or different organisms.

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