This family consists of a number of hypothetical bacterial proteins. The aligned region spans around 56 residues and contains 4 highly conserved cysteine residues towards the N-terminus. The function of this family is unknown. Structural modelling suggests this domain may bind nucleic acids [1].

1: Ab Initio Modeling Led Annotation Suggests Nucleic Acid Binding Function for Many DUFs. Rigden DJ; OMICS 2011;0:0-0. PMID:21348639