PPT-Restriction Enzymes

Presented by Fotios Patsalis Bio 446546 FALL 2016 MF 13001550h Castetter Hall 37 Restriction Enzymes Molecular Scissors Restriction enzymes endonuleases are specific endonucleases which . Meeting Summary. Stu Linn. University of California, Berkeley. Some Items Noted for Restriction and Modification Studies.  . There were a number of small meetings devoted especially to restriction and modification . Recombinant DNA Technology. T. echnique that allows DNA to be . combined. from different sources. DNA code universal. Foundation of genetic engineering. Review. What are enzymes? What function do they serve?. An Introduction to Restriction Enzymes & Gel Electrophoresis. Objectives. Understand the use of restriction enzymes as biotechnology tools. Become familiar with principles and techniques of . agarose. IMPORTANCE. OF ENZYMES. Enzymes are biological catalysts that:. . I. ncrease. . reaction rates . by lowering the amount of energy needed for the reaction to occur. 100-1000x . faster. !!!. Activation Energy. Part 1. . Chapter 3. Learning outcomes. You should be able to:. explain how enzymes work. describe and explain the factors that affect. enzyme activity. use V. max. and K. m. to compare the affinity of different enzymes for their substrates. Dr. Kevin Ahern. Protease Mechanisms. Aspartic Acid. Aspartic Acid. Histidine. Cysteine. Electron rich. Metal. Other Protease Families. Cysteine. Aspartyl. Metallo-. Papain. Cathepsin D. Carboxypeptidase A. BIOTECHNOLOGY. What. . is. . biotechnology. ? . Biotechnology. = . bios. (. life. ) + logos (. study. . of). Literally. ‘. the. . study. of . tools. . from. living . things. ’. What. . What are restriction endonucleases (REs)?. How can REs be used to identify DNA molecules?. How can I find RE recognition sites in the . MET. plasmids? . Restriction endonucleases are part of a bacterium’s defense against invaders. Enzymes“. „. Sequence. . specific. . recognition. . and. . engineering. “. Alfred Pingoud. CSHL. Oct. . 19-21 2013. roberts@neb.com. . Sa 03.08.2013 . Outline of . talks. Alfred . Pingoud (25 . Presented . by. Ms. . P. . . H. . Giri. Department of Microbiology. Deogiri . College, Aurangabad. B.Sc. T. Y. . Semester VI. Paper No. XIX. Recombinant DNA Technology. Ms. . Priyanka. H. . Giri. DNA manipulating enzymes:. Restriction enzymes . Restriction enzymes . (or restriction endonucleases), are bacterial enzymes that cleave both strands of DNA at or near specific recognition nucleotide sequences (4 -8 bp ) known as restriction sites. . the isolation of the restriction . endonuclease. from. E. coli K (. Meselson. & Yuan 1968). . It was evident . that the restriction . endonucleases. from . E. coli K . and . E. coli B were important examples of proteins. Cutting DNA molecules. . Before 1970s, there was no method of cleaving DNA at the specific points.. All the available methods for fragmenting DNA were non-specific.. Mechanical shearing. by. Prof. . Meena. . Nagawanshi. Professor . Department of . Zoology. Deogiri . College, Aurangabad. Enzymes. Enzymes are proteins. . biological catalysts .  help drive biochemical reactions. Enzyme names end with an .