PPT-UNIT I: Protein Structure

and Function Chapter 3 Globular Proteins Part 2 II GLOBULAR HEMEPROTEINS E Allosteric effects Binding of CO 2 Most of the CO 2 produced in metabolism is hydrated and transported as bicarbonate . Why do we want to know protein structure?. Classification. Functional Prediction. What is protein structure?. Primary - chains of amino acids. Secondary - interaction between groups of amino acids. Tertiary - the organization in three dimensions of all the atoms in a polypeptide. SUMI SINGH. (sxs5729). Levels of Protein Structure. 2. Thanks to: Frank . Lloyd . Wright for graphics. WOOD, BRICK etc. . . material/building blocks . AMINO ACIDS. *****************************************************************. Sequence:. Edman degradation. Mass spectrometry. Secondary structure:. Circular Dichroism. FTIR. Tertiary, quaternary structure:. NMR. X-ray crystallography. Protein sequencing approaches depend on what is known and what is the goal. Alexey Onufriev, . Virginia Tech. www.cs.vt.edu/~onufriev. Proteins play key roles in a living system. Three (out of many many) examples of protein functions. Catalysis:. Almost all chemical reactions in a living cell are catalyzed by protein enzymes.. and Secondary Levels. The . secondary structure . of a protein describes the structure that forms when amino acids form hydrogen bonds between the atoms in the backbone and atoms on the same or another peptide chain.. Sequence:. Edman degradation. Mass spectrometry. Secondary structure:. Circular Dichroism. FTIR. Tertiary, quaternary structure:. NMR. X-ray crystallography. Protein sequencing approaches depend on what is known and what is the goal. A nutrient found in all living things. It contains nitrogen and is responsible for the formation, maintenance, and repair of the body’s tissues/ It can also be used for energy. CHNO. Amino acids . by . Sadhana S. definition. Protein structure prediction/protein . modelling. is the prediction of the three-dimensional structure of protein from its amino acid sequence. i.e., the prediction of its folding & its. LapA. in LPS Assembly. Aarthi Prakash. December 1, 2017. Lipopolysaccharide. Outer membrane of E. Coli. LPS . 6 Fatty Acyl Side Chains with many sugars attached. LPS bind together. Provides gel like barrier. Localized arrangement of adjacent amino acids formed as the polypeptide chain folds.. The regions of ordered structures formed by interaction of hydrogen bond donor and hydrogen bond acceptor residues of the repeating peptide unit. Prediction . Wang Yang. 2014.1.3. Outline. Molecular. . Co-evolution . phenomenon. A. pplications . of Co-evolution . in . protein structure prediction and PPI prediction.. Co-evolution measurement: . Virginia Tech. www.cs.vt.edu/~onufriev. Gene is protein. ’. s blueprint, genome is life. ’. s blueprint . Gene. Genome. DNA. Protein. Gene. Gene. Gene. Gene. Gene. Gene. Gene. Gene. Gene. Gene. Gene. This has proved to be a very challenging problem. It has aptly been described as the second half of the genetic code, and as the three-dimensional code, as opposed to the one-dimensional code involved in nucleotide/amino acid sequence. . Swanand. Gore & Gerard . Kleywegt. PDBe. – EBI. May 7. th. 2010, 9-10 am. Macromolecular Crystallography Course. Outline. Structural Biology and Bioinformatics. Databases in Structural Bioinformatics.