GHK Cu: Four Decades of Copper Peptide Science and What Researchers Are Finding Praetorian Peptides Glycation of type I collagen selectively targets the same helical domain lysine sites as lysyl oxidasemediated cross linking Journal of Biological Chemistry Elevated intracellular copper contributes a unique role to kidney fibrosis by lysyl oxidase mediated matrix crosslinking Cell Death & Disease Enhancement of collagen deposition and cross linking by coupling lysyl oxidase with bone morphogenetic protein 1 and its application in tissue engineering Scientific Reports Human lysyl oxidase like 2 ScienceDirect