Nr1a1 protein coding gene Thra c-erbAalpha Erba Thra2 Thra1 T3R[a]|Nr1a1|TR alpha 1|6430529J03Rik|Thra1|Erba|Thra2|c-erbAalpha|Rvr|T3Ralpha|TR alpha 2 6430529J03Rik Rvr O T3Ralpha http://identifiers.org/mgd/MGI:98742 TR alpha 2 genetic mapping thyroid hormone receptor alpha MGI:98742 T3R[a] + Gene TR alpha 1