Hyperlysinemia is an autosomal recessive metabolic disorder characterized by an abnormal increase of lysine in the blood, but appears to be benign. It is caused by mutations in AASS, which encodes α-aminoadipic semialdehyde synthase.Hyperlysinemia is associated with ectopia lentis (a displacement or malposition of the eye's crystalline lens) in humans. [Source: Wikipedia 
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