IGLL1base mutation publications [1998] Search PubMed latest citations for IGLL1 mutations 1998 Mutations in the human lambda5/14.1 gene result in B cell deficiency and agammaglobulinemia. Minegishi Y, Coustan-Smith E, Wang YH, Cooper MD, Campana D, Conley ME J Exp Med 1998(1): 71-7 [PubMed abstract].