To date, heterozygous mutations in 19 RP genes (RPS7, RPS10, RPS15A, RPS17, RPS19, RPS24, RPS26, RPS27, RPS28, RPS29, RPL5, RPL11, RPL15, RPL18, RPL26, RPL27, RPL31, RPL35, RPL35A) have been identified in DBA patients [17,18]. This evidence concerns the gene RPL5 and Diamond-Blackfan anemia.