Genetics / Physiology / Protein Folding / Crystallization / Macromolecular X-Ray Crystallography / Protein Structure and Function / Crystal structure / Gene Mapping / Humans / Sequence alignment / Human Body / Medical Physiology / Enzyme / Dimensional / Retinoblastoma / Active site / Enzyme activity / Amino Acid Sequence / Rutherford Backscattering Spectroscopy / X Ray Crystallography / Early Diagnosis / Genetic Markers / Biochemistry and cell biology / Molecular Sequence Data / Protein Structure and Function / Crystal structure / Gene Mapping / Humans / Sequence alignment / Human Body / Medical Physiology / Enzyme / Dimensional / Retinoblastoma / Active site / Enzyme activity / Amino Acid Sequence / Rutherford Backscattering Spectroscopy / X Ray Crystallography / Early Diagnosis / Genetic Markers / Biochemistry and cell biology / Molecular Sequence Data