Amino Acid Sequence|Amino Acids|Bacterial Proteins|Binding Sites|Cellulose 1,4-beta-Cellobiosidase|Computational Biology|Computer Simulation|Conserved Sequence|Databases, Protein|Evolution, Molecular|Internet|Models, Chemical|Models, Genetic|Models, Molecular|Molecular Structure|Mutagenesis, Site-Directed|Ornithine Decarboxylase|Protein Interaction Domains and Motifs|Protein Structure, Tertiary|Proteins|Regression Analysis|Sequence Alignment|Thermodynamics