GATE-16 covalently coupled to agarose beads via primary amines allowing for a fully functional C-terminus. Useful for isolation and capture of GATE-16 interacting proteins and/or enzymes that have an affinity for this ubiquitin-like protein. These include the Apg8 E1 activating enzyme Apg7, the Apg8 conjugating enzyme Apg3, Apg8 processing enzyme Apg4 and other autophagy pathway proteins and enzymes.