2XFG:
reference: Reassembly and co-crystallization of a family 9 processive endoglucanase from its component parts: structural and functional significance of the intermodular linker., Petkun S, Rozman Grinberg I, Lamed R, Jindou S, Burstein T, Yaniv O, Shoham Y, Shimon LJ, Bayer EA, Frolow F, PeerJ. 2015 Sep 15;3:e1126. doi: 10.7717/peerj.1126. eCollection 2015. PMID: 26401442

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