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The Cell, Central Dogma and Human Genome Project.

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Presentation on theme: "The Cell, Central Dogma and Human Genome Project."— Presentation transcript:

1 The Cell, Central Dogma and Human Genome Project

2 A Eukaryotic Cell (there is nucleus)

3 Central Dogma

4 Transcription and translation

5 Fundamentals of Nucleic Acids

6 DNA Base Pair & Double Helix

7 Strands come in pairs. Alternating sugar- phosphate backbone A,T,G,C variability in the side groups Nucleotide bonds are hydrogren bonds 3' ATTAGCCCAT 5' 5' TAATCGGGTA 3‘ the string "attagcccat" is bonded to its complement "atgggctaat".

8 From DNA to protein, Eukaryotes vs. Prokaryotes

9 From Gene Code to Amino Acid: Codon Table

10

11 I. Protein Molecular Structure a) Protein is a polymer of amino acids. 20 Amino Acids ( Functional Groups) Peptide Bond Formation

12 Human genome project (1990 - 2003) Goal: to determine the complete sequence of the 3 billion DNA subunits (bases), identify all human genes, and make them accessible for further biological study. Ref: http://www.ornl.gov/sci/techresources/Human_Genome/home.shtml http://www.ddj.com/184410424 (How Perl saved the Human Genome project?) Major Database and Data collection methods: Genbank: (www.ncbi.nih.gov) DNA sequence: shortgun gene sequencing (molecular biology + computation) Protein sequence: ORF finder, theoretical translation, Experimental: Proteolysis +Mass spectrometry Protein structure db: (www.pdb.org) x-ray crystallography, Nuclear Magnetic Resonance(NMR) spectroscopy Protein structure modeling: http://swissmodel.expasy.org//SWISS-MODEL.htmlhttp://swissmodel.expasy.org//SWISS-MODEL.html Genomewide expression data (RNA): Gene chip (microarray technology) special gene chips: microRNA chip SNP chip Protein-protein interaction (Proteomics): 2D gel, mass spectrometry

13 NCBI (Natl Center Biotech Information) - GenBank http://www.ncbi.nlm.nih.gov/ EBI (European Bioinformatics Institute) - EMBL http://www.ebi.ac.uk/ NIAS, Japan (National Institute of Agrobiological systems) http://www.dna.affrc.go.jp/http://www.dna.affrc.go.jp/ (genebank, DNA and proteins) KEGG http://www.genome.jp/kegg/pathway.html (pathways database)http://www.genome.jp/kegg/pathway.html ExPASy - SwissProt and TrEMBL: http://www.expasy.org/sprot http://www.expasy.org/ Database of annotated proteins http://swissmodel.expasy.org//SWISS-MODEL.html Database for predicting protein structure using homology modeling Prosite: http://kr.expasy.org/prositehttp://kr.expasy.org/prosite Database of protein active sites Structure Databases: PDB (Protein Data Bank): http://www. pdb.org/http://www. pdb.org/ Data base of Protein tertiary structures SCOP: http://scop.mrc-lmb.cam.ac.uk/scop http://scop.mrc-lmb.cam.ac.uk/scop CATH: http://www.biochem.ucl.ac.uk/bsm/cathhttp://www.biochem.ucl.ac.uk/bsm/cath Primary Biological information databases

14 http://www.ncbi.nlm.nih.gov/ Tools and Tutorial: BLAST, Structure, PubMed, OMIM, Taxbrowser http://www.ncbi.nlm.nih.gov/IEB/http://www.ncbi.nlm.nih.gov/IEB/ (Information Engineering) http://www.ncbi.nlm.nih.gov/Education/

15 Significance of the Genomics Revolution data driven biology – functional genomics – comparative genomics – systems biology molecular medicine – identification of genetic components of various maladies – diagnosis/prognosis from sequence/expression – gene therapy pharmacogenomics – developing highly targeted drugs – predicting adverse effects or efficacy on individual basis toxicogenomics – elucidating which genes are affected by various chemicals


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