Cutis Laxa, Autosomal Recessive, Type Iib, also known as arcl2b, is related to cutis laxa, autosomal dominant 3 and wrinkly skin syndrome. An important gene associated with Cutis Laxa, Autosomal Recessive, Type Iib is PYCR1 (Pyrroline-5-Carboxylate Reductase 1), and among its related pathways/superpathways are Regulation of expression of SLITs and ROBOs and superpathway of L-citrulline metabolism. Affiliated tissues include skin and bone, and related phenotypes are hypotelorism and failure to thrive