Quantitative cross-link analysis (A) and the major cross-linking pathways found (B).
A, Lysald-derived (HLNL and HHMD) and Hylald-derived cross-links (DHLNL, Pyr, and d-Pyr) are shown. Cross-links are expressed as moles per mole of collagen (mol/mol collagen). In CypB KO tendon collagen, HLNL and HHMD were significantly lower than in WT and Het (p < 0.001). Hylald-derived cross-links were identified only in KO tendon. B, the major cross-linking pathways in mouse tail tendon collagen. LOX, lysyl oxidase.