- Leucine Proline Enriched Proteoglycan 1 (LEPRE1)
- Leprecan Like Protein 2 (LEPREL2)
- Leprecan Like Protein 1 (LEPREL1)
- Late Cornified Envelope Like Proline Rich Protein 1 (LELP1)
- Lens Epithelial Protein (LENEP)
- Kaptin (KPTN)
- Kinetochore Associated Protein 1 (KNTC1)
- Kinetochore Associated Protein 2 (KNTC2)
- Klotho Beta (KLb)
- Klotho (KL)
- Junctional Sarcoplasmic Reticulum Protein 1 (JSRP1)
- Intelectin 2 (ITLN2)
- Inter Alpha-Globulin Inhibitor H5 (ITIH5)
- Inter Alpha-Globulin Inhibitor H4 (ITIH4)
- Inter Alpha-Globulin Inhibitor H3 (ITIH3)
