<p>This domain, whose function is not known, is about 320 residues long and is found in proteins that have two C-terminal CBS domains, <db_xref db="INTERPRO" dbkey="IPR000644"/>. Theprotein <db_xref db="SWISSPROT" dbkey="O26943"/> is described as inosine-5'-monophosphate dehydrogenase related protein VIII, based on the sequence simarity it shares to the CBS domains.</p> Domain of unknown function DUF39