Map showing chromosomal position of UII- and somatostatin-related peptide encoding genes in human. Other putative duplicated gene pairs localized in their vicinity are indicated. The duplicates of each pair are connected by broken line. All of the positions are expressed in megabases. CLCN2/6, chloride channel 2/6; MASP1/2, mannose-binding lectin-associated serine protease 1/2; TP73/73L, tumor protein p73/p73-like; DFFA/B, DNA fragmentation factor A/B; TNFRSF1B/8/9/25, tumor necrosis factor receptor superfamily member 1B/8/9/25; FBX2/6/44, F-box protein 2/6/44; NPPA/NPPB, A/B-type natriuretic peptide precursor; TML7, transmembrane protein 7; IF28, 28-kDa IFN-responsive protein; CLDN1/16, claudin 1/16.