DMP1 and X-linked hypophosphatemia: Similar to XLH, recessive loss-of-function mutations in the dentin matrix protein-1 (DMP1) gene, a member of small integrin-binding ligand N-linked glycoprotein (SIBLING) proteins, is responsible for a human phosphate wasting and impaired bone mineralization disease termed autosomal recessive hypophosphatemic rickets type 1 (ARHR1).