Why a Second Edition?The Second Edition provides practical answers to the general question, "How can I obtain useful sequence information from my protein or peptide?" rather than the more specific question asked in the first edition, "How can I obtain the N-terminal sequence?" Important new methods include ways of dealing with blocked N termini, computer analysis of protein sequences, and the recent revolution in mass spectrometry. - Mass spectrophotometric characterization of proteins and peptides - N-terminal sequencing of proteins with blocked N termini - Internal amino acid sequence analysis after protease digestion in-gel and on-blot - Improved microscale peptide purification methods - Computer analysis of protein sequences - New protocols tested and refined through everyday use in authors' laboratories - Updated reference chapter covering all aspects of protein microsequencing

A Practical Guide to Membrane Protein Purification is written especially for researchers who have some familarity with separation of water-soluble proteins, but who may not be aware of the pitfalls they face with membrane proteins. This guide presents techniques in a concise form, emphasizing the aspects unique to membrane proteins. The book explains the principles of the methods, permitting researchers and students new to this area to adapt these techniques to their particular needs. The second volume in the series, this book is an essential manual for investigations of structure and function of native membrane proteins, as well as for purification of these proteins for immunization and protein sequencing. Separation, Detection, and Characterization of Biological Macromolecules is a new series of laboratory guides. Each volume focuses on a topic of central interest to scientists and students in biomedical and biological research. Introductory chapters are followed by clear, step-by-step protocols that present principles and practice. These concise manuals are designed for optimal understanding of methods as well as for practical benchtop use. - Provides general guidelines and strategies for isolation of membrane proteins - Describes detailed practical procedures that have been the widest applications, and lowest specialized equipment needs - Gives special emphasis to new native and denaturing electrophoresis techniques - Explains modifications of techniques used for water-soluble proteins

This new edition of Gel Electrophoresis of Proteins is a completely new text, with eight of the ten chapters written by new authors. It presents the best methods, hints and tips for core procedures such as one- dimensional polyacrylamide gel electrophoresis, isoelectric focusing, two-dimensional gel electrophoresis, preparative gel electrophoresis, and peptide mapping, complete with the latest refinements and updates of the procedures. In addition, it describes major new techniques which have come to the fore since the previous edition. Thus there are chapters on capillary gel electrophoresis, sequence analysis of gel-resolved proteins, fluorophore-labelled saccharide electrophoresis, and analysis of protein:protein interactions by gel electrophoresis. One thing has not changed. The emphasis is still on describing the best methods, in step-by-step detail, with copious advice to ensure that each method works first time in the reader's hands. The first two editions of Gel Electrophoresis of Proteins: A Practical Approach each gained a strong reputation as easy-to-follow laboratory manuals written by experienced researchers for researchers. The methods were presented in a clear accessible format and had been fully tested to ensure success in the lab. This new edition will strengthen the reputation of the book still further. It is a 'must have' for all those who currently use gel electrophoresis or who plan to do so.

In The Protein Protocols Handbook, I have attempted to provide a cross-section of analytical techniques commonly used for proteins and peptides, thus providing a benehtop manual and guide both for those who are new to the protein chemistry laboratory and for those more established workers who wish to use a technique for the first time. We each, of course, have our own favorite, commonly used gel system, g- staining method, blotting method, and so on; I'm sure you will find yours here. H- ever, I have also described a variety of altematives for many of these techniques; though they may not be superior to the methods you commonly use, they may nev- theless be more appropriate in a particular situation. Only by knowing the range of techniques that are available to you, and the strengths and limitations of these te- niques, will you be able to choose the method that best suits your purpose.

"Protein Structure Analysis - Preparation and Characterization" is a compilation of practical approaches to the structural analysis of proteins and peptides. Here, about 20 authors describe and comment on techniques for sensitive protein purification and analysis. These methods are used worldwide in biochemical and biotechnical research currently being carried out in pharmaceu tical and biomedical laboratories or protein sequencing facilities. The chapters have been written by scientists with extensive ex perience in these fields, and the practical parts are well documen ted so that the reader should be able to easily reproduce the described techniques. The methods compiled in this book were demonstrated in student courses and in the EMBO Practical Course on "Microsequence Analysis of Proteins" held in Berlin September 10-15, 1995. The topics also derived from a FEBS Workshop, held in Halkidiki, Thessaloniki, Greece, in April, 1995. Most of the authors participated in these courses as lecturers and tutors and made these courses extremely lively and successful. Since polypeptides greatly vary depending on their specific structure and function, strategies for their structural analysis must for the most part be adapted to each individual protein. Therefore, advantages and limitations of the experimen tal approaches are discussed here critically, so that the reader becomes familiar with problems that might be encountered.

This book is designed to be a practical progression of experimental techniques an investigator may follow when embarking on a biochemical project. The protocols may be performed in the order laid out or may be used inde pendently. The aim of the book is to assist a wide range of researchers. from the novice to the frustrated veteran, in the choice and design of experiments that are to be performed to provide answers to specific questions. The manual describes standard techniques that have been shown to work, as well as some newer ones that are beginning to prove important. By following the promi nently numbered steps. you can work your way through any protocol. whether it's a new technique or a task you've done before for which you need a quick review or updated methodology. This manual will assist the experimentalist in designing properly controlled experiments. There will be no advice for dealing with specific pieces of equip ment other than encouragement to read the manual, if you can find it. Through out all manipulations try to be objective. Be on the lookout for unexpected findings. You will learn the most from unexpected results. and they are often the beginning of the next project. It is never possible to record too much in your lab notebook. Do not get discouraged. Remember, things will not always run smoothly.

This new book on capillary electrophoresis (CE) is unique in its focus on biotechnology. It is devoted to proteins, peptides, and techniques especially useful in the area of recombinant DNA products. Emphasis is also placed on glycoproteins. Because of the growing role of the glycosylation process in CE, a comprehensive chapter on the subject acts as a book within a book. Although this well-known researcher in biotechnology presents a number of chapters extensively discussing theories, important practical aspects in the routine use of capillary electrophoresis are also covered.