PLOD2 and connective tissue disorder: We rule out LH3 because mutations in the LH3 gene cause a connective tissue disorder with an effect on helical‐domain hydroxylysine glycoside but not Pyr (telopeptide hydroxylysine) formation(44, 45) and that cartilage type II collagen telopeptide lysines from Plod2 null zebrafish(24) were not hydroxylated (unpublished findings, Charlotte Gistelinck, MaryAnn Weis, and David R Eyre).