Accession ID Name Pfam Type
PF07707 BTB And C-terminal Kelch domain

This domain is found associated with Pfam:PF00651 and Pfam:PF01344 [1]. The BACK domain is found juxtaposed to the BTB domain; they are separated by as little as two residues [1]. This family appears to be closely related to the BTB domain (Finn RD, personal observation).
Pfam Range: 149-251 DPAM-Pfam Range: 172-273
Uniprot ID: Q8R2P1
Pfam Range: 149-251 DPAM-Pfam Range: 141-273
Uniprot ID: Q0D2A9
Pfam Range: 187-289 DPAM-Pfam Range: 182-326
Uniprot ID: Q9VK21

References

1: The BACK domain in BTB-kelch proteins. Stogios PJ, Prive GG; Trends Biochem Sci 2004;29:634-637. PMID:15544948