PC-1 amino acid variant Q121 is associated with a lower glomerular filtration rate in type 2 diabetic patients with abnormal albumin excretion rates. - DeCosmo,S.; Trevisan,R.; Dalla Vestra,M.; Vedovato,M.; Argiolas,A.; Solini,A.; Saller,A.; Damone,F.; Tiengo,A.; Trischitta,V.; Fioretto,P. (Diabetes Care, 2003)