Human recombinant PARP-1 (overexpressed in baculovirus / SF9 cells)

Bovine PARP-1 (3-AB affinity chromatography purification)

Bovine PARP-1 (automodified)

Human PARP-1 catalytic domain

Chicken PARP-1 catalytic domain

Mouse recombinant PARP-2

Bovine PARG (substrate chromatography purification)

These proteins are commercially available from Alexis Biochemicals , BioMol, Calbiochem, Roche, Serotec, R&D Systems, Trevigen and others...