Anti-Cytokeratin-AlkalinePhosphataseisacocktailoftwocytokeratin-specificantibodyclones,CK3-11D5andCK3-3E4,whicharedirectlyconjugatedtoalkalinephosphatase.CK3-11D5isamulti-cytokeratin–specificantibodythatrecognizescytokeratins7,8,18,and19andcrossblocksbindingofCam5.2,anantibodyspecificforcytokeratins7and8.CK3-3E4bindsspecificallytocytokeratin8andalmostcompletelycrossblocksA45-B/B3,anantibodyknowntorecognizethecytokeratinheterodimers8/18and8/19.