title: Three-dimensional structure of the catalytic domain of the yeast beta-(1,3)-glucan transferase Gas1: a molecular modeling investigation.
abstract: The three-dimensional (3D) structure of the catalytic domain of Gas1p, a protein belonging to the only family of beta-(1,3)-glucan transferases so far identified in yeasts and some pathogenic fungi (family GH-72), has been predicted by combining results derived from threading methods, multiple sequence alignments and secondary-structure predictions. The 3D model has allowed the identification of several residues that are predicted to play a crucial role in structural integrity, substrate recognition and catalysis. In particular, the model of the catalytic domain can be useful for designing site-directed mutagenesis experiments and for developing inhibitors of Gas1p enzymatic activity.
authors.affiliation: Dipartimento di Biotecnologie e Bioscienze, Università di Milano-Bicocca, Piazza della Scienza 2, 20126, Milano, Italy, luca.degioia@unimib.it.
authors.forename: Elena
authors.initials: E
authors.lastname: Papaleo
authors.forename: Piercarlo
authors.initials: P
authors.lastname: Fantucci
authors.forename: Marina
authors.initials: M
authors.lastname: Vai
authors.forename: Luca
authors.initials: L
authors.lastname: De Gioia
mesh_terms: D001665:Binding Sites; D002384:Catalysis; D020134:Catalytic Domain; D008562:Membrane Glycoproteins / Q000737:chemistry*; D008958:Models, Molecular; D017433:Protein Structure, Secondary; D017434:Protein Structure, Tertiary; D029701:Saccharomyces cerevisiae Proteins / Q000737:chemistry*; D016415:Sequence Alignment
chemical_list: C066709:GAS1 protein, S cerevisiae; D008562:Membrane Glycoproteins; D029701:Saccharomyces cerevisiae Proteins