label: protein-lysine lysyltransferase activity
label_lc: protein-lysine lysyltransferase activity
description: "Catalysis of the reaction: protein-lysine + protein-lysine = protein N6-(lysyl)-L-lysine + protein. This reaction is the addition of lysine group from one protein to a lysine residue in a second protein, producing N6-(lysyl)-L-lysine."