Chromatography and Modification of Nucleosides is a four-volume work which provides state-of-the-art chromatography and analytical methods for use in a wide spectrum of nucleic acid modification research. The focus of Part A, is the presentation of advanced methods for modification research on tRNAs, mRNAs, mtRNAs, rRNAs and DNAs. HPLC-UV, GC-MS, NMR, FT-IR and affinity chromatography approaches to nucleic acid modification studies are presented, as are nucleoside, oligonucleotide and nucleic acid isolation techniques. Part B has as its central theme the modified nucleosides of tRNA and the current analytical means for studying tRNA modifications. Modified nucleoside synthesis, function, structural conformation, biological regulation, and occurrence of modification in a wide range of tRNAs are presented, as is a chapter on DNA modification and a chapter on solid phase immunoassay for determining a particular modification. Part C provides the reader with a comprehensive treatment of modified nucleosides as biochemical signals of neoplasia and normal metabolism. The final volume, Part D, will present structural characterization of unknown nucleosides as well as extensive biochemical, chemical and physical properties of RNA and DNA nucleosides, as a "database" for researchers in the field. Chromatographic methodology will be described for analysis of total modification of tRNAs and DNAs. The chapters are written by leading scientists in their respective fields and present an up-to-date review on the roles of modified nucleosides in nucleic acids which will be extremely useful for workers in chromatography, molecular biology, genetics, biochemistry, biotechnology and the pharmaceutical industry.