PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11319648-8 2001 CONCLUSION: As the val/ala-55 polymorphism is located in a domain of the protein without any known function, the different exercise efficiency between the two genotypes most likely reflects a linkage disequilibrium with a functionally significant polymorphism in UCP2 or in the neighbouring UCP3 gene. Alanine 23-26 uncoupling protein 3 Homo sapiens 291-295