Source:http://linkedlifedata.com/resource/umls/id/C2699876
NCI: Human TTR wild-type allele is located in the vicinity of 18q12.1 and is approximately 7 kb in length. This allele, which encodes transthyretin protein, plays a role in the stabilization and transport of thyroxine and retinol. Mutations in the gene are associated with hyperthyroxinemia and amyloidosis types 1 and 7. (UniProt)