Kh2po4 Buffer

Biochemistry

This text is intended for an introductory course in bio metabolism concludes with photosynthesis. The last sec chemistry. While such a course draws students from vari tion of the book, Part IV, TRANSFER OF GENETIC INFOR ous curricula, all students are presumed to have had at MATION, also opens with an introductory chapter and then least general chemistry and one semester of organic chem explores the expression of genetic information. Replica istry. tion, transcription, and translation are covered in this or My main goal in writing this book was to provide stu der. To allow for varying student backgrounds and for pos sible needed refreshers, a number of topics are included as dents with a basic body of biochemical knowledge and a thorough exposition of fundamental biochemical con four appendixes. These cover acid-base calculations, principles of cepts, including full definitions of key terms. My aim has of organic chemistry, tools biochemistry, and been to present this material in a reasonably balanced oxidation-reduction reactions. form by neither deluging central topics with excessive de Each chapter includes a summary, a list of selected tail nor slighting secondary topics by extreme brevity. readings, and a comprehensive study section that consists Every author of an introductory text struggles with of three types of review questions and a large number of the problem of what to include in the coverage. My guide problems.

Selective Crystallization of Phosphate Buffer Components and PH Changes During Freezing

Nuclease Methods and Protocols

Nucleases, enzymes that restructure or degrade nucleic acid polymers, are vital to the control of every area of metabolism. They range from “housekeeping” enzymes with broad substrate ranges to extremely specific tools (1). Many types of nucleases are used in lab protocols, and their commercial and clinical uses are expanding. The purpose of Nuclease Methods and Protocols is to introduce the reader to some we- characterized protein nucleases, and the methods used to determine their activity, structure, interaction with other molecules, and physiological role. Each chapter begins with a mini-review on a specific nuclease or a nuclease-related theme. Although many chapters cover several topics, they were arbitrarily divided into five parts: Part I, “Characterizing Nuclease Activity,” includes protocols and assays to determine general (processive, distributive) or specific mechanisms. Methods to assay nuclease products, identify cloned nucleases, and determine their physiological role are also included here. Part II, “Inhibitors and Activators of Nucleases,” summarizes assays for measuring the effects of other proteins and small molecules. Many of these inhibitors have clinical relevance. Part III, “Relating Nuclease Structure and Function,” provides an overview of methods to determine or model the 3-D structure of nucleases and their complexes with substrates and inhibitors. A 3-D structure can greatly aid the rational design of nucleases and inhibitors for specific purposes. Part IV, “Nucleases in the Clinic,” summarizes assays and protocols suitable for use with t- sues and for nuclease based therapeutics.