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crystallization communications
AAL-2 is a recently discovered lectin from the mushroom Agrocybe aegerita that specifically recognizes nonreducing terminal acetylglucosamine (GlcNAc) and that could be used as a probe in studies of protein O-linked β-N-acetylglucosamination (O-GlyNAcylation). In order to illustrate the mechanism of how this protein specifically recognizes nonreducing terminal GlcNAc and to evaluate the efficacy of AAL-2 as a macromolecular probe in O-GlyNAcylation studies, expression and crystallization studies of AAL-2 were performed and a diffraction data set was collected to 2.0 Å resolution. Preliminary crystallographic studies revealed that the AAL-2 crystals belonged to space group P212121, with unit-cell parameters a = 52.60, b = 111.70, c = 135.97 Å.