title: Model compounds for protein-nucleic acid interactions. 5.1a 5-S-cysteinyluracil monohydrate, a photoaddition product between an amino acid and pyrimidine base.
mesh_terms: D003545:Cysteine / Q000031:analogs & derivatives*; D006860:Hydrogen Bonding; D010777:Photochemistry; D014466:Ultraviolet Rays; D014498:Uracil / Q000031:analogs & derivatives*; D014961:X-Ray Diffraction
chemical_list: C014438:5-S-cysteinyluracil; D014498:Uracil; D003545:Cysteine