PRINTS and PRINTS-S shed light on protein ancestry. - Terri K. Attwood; Martin J. Blythe; Darren R. Flower; Anna Gaulton; J. E. Mabey; Neil Maudling; L. McGregor; Alex L. Mitchell; G. Moulton; K. Paine; Philip Scordis (Nucleic Acids Res., 2002)