National Center for
2J0A: Structure Of The Catalytic Domain Of Mouse Manic Fringe
Nat. Struct. Mol. Biol. (2006) 13 p.945-946
Fringe proteins are beta1,3-N-acetylglucosaminyltransferases that modify Notch receptors, altering their ligand-binding specificity to regulate Notch signaling in development. We present the crystal structure of mouse Manic Fringe bound to UDP and manganese. The structure reveals amino acid residues involved in recognition of donor substrates and catalysis, and a putative binding pocket for acceptor substrates. Mutations of several invariant residues in this pocket impair Fringe activity in vivo.