NPHP4 and hereditary spastic paraplegia 5A: Examples include SPG11 (MIM# 610844) associated with autosomal recessive spastic paraplegia, RAB3GAP2 (MIM# 609275) linked to autosomal recessive Marsolf syndrome, and NPHP4 (MIM# 607215) linked to autosomal recessive nephronophthisis.