(A) Schematic representation of human MafG cDNAs. Coding sequences are shaded. (B) cDNA sequence of human MafG. The basic domain is boxed and lightly shaded. Dark shaded circles indicate the leucine zipper. An in-frame, upstream termination codon in the 5′UTR, and putative 3′UTR AUUUA mRNA degradation sequences55 are underlined.

(C) Comparison of human MafG to related small Maf proteins. Nonconserved amino acids are shaded. Numbers in parentheses represent amino acid positions. The basic region is indicated with a black bar; locations of leucine zipper residues are marked with black dots.