IUUC-Cho-025029 ENSCHOG00000007158.1 UBR2 Choloepus hoffmanni IUUC-Cho-024474 ENSCHOG00000007037.1 UBR4 Choloepus hoffmanni IUUC-Cho-024550 ENSCHOG00000003081.1 UBR1 Choloepus hoffmanni