The function of TACC1 (transforming acidic coiled-coil containing protein 1, Ensembl gene identifier ENSG00000147526) is as follows. Involved in transcription regulation induced by nuclear receptors, including in T3 thyroid hormone and all-trans retinoic acid pathways (PubMed:20078863). Might promote the nuclear localization of the receptors (PubMed:20078863). Likely involved in the processes that promote cell division prior to the formation of differentiated tissues. .