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About Fundamental Concepts of Bioinformatics

  About the Authors
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About Fundamental Concepts of Bioinformatics

Dan E. Krane, Wright State University
Michael L. Raymer, Wright State University
ISBN: 0-8053-4722-4

Table of Contents

I. MOLECULAR BIOLOGY AND BIOLOGICAL CHEMISTRY
  The genetic material
    Nucleotides
    Orientation
    Base pairing
    The central dogma of molecular biology
  Gene structure and information content
    Promoter sequences
    The genetic code
    Open reading frames
    Introns and exons
  Protein structure and function
    Primary structure
    Secondary, tertiary and quaternary structure
  The nature of chemical bonds
    Anatomy of an atom
    Valence
    Electronegativity
    Hydrophilicity and hydrophobicity
  Molecular biology tools
    Restriction enzymes
    Gel electrophoresis
    Blotting, hybridization and microarrays
    Cloning
    Polymerase chain reaction (PCR)
    DNA sequencing
  Genomic information content
    C value paradox
    Reassociation kinetics
II. DATA SEARCHES AND PAIRWISE ALIGNMENTS
  Dot plots
  Simple alignments
  Scoring
  Gaps
    Simple gap penalties
    Origination and length penalties
  Scoring matrices
  Dynamic programming: The Needleman and Wunsch algorithm
  Local and global alignments
    Global and Semi-global alignments
    The Smith-Waterman algorithm
  Database searches
    BLAST and its relatives
    Other algorithms
  Multiple sequence alignments
III. SUBSTITUTION PATTERNS
  Patterns of substitutions within genes
    Mutation rates
    Functional constraint
    Synonymous vs. nonsynonymous changes
    Indels and psuedogenes
    Substitutions vs. mutations
    Fixation
  Estimating substitution numbers
    Jukes/Cantor model
    Transitions and transversions
    Kimura's two-parameter model
    Models with even more parameters
    Substitutions between protein sequences
  Variations in substitution rates between genes
  Molecular clocks
    Relative rate tests
    Causes of rate variation in lineages
  Evolution in organelles
IV. DISTANCE-BASED METHODS OF PHYLOGENETICS
  History of molecular phylogenetics
  Advantages to molecular phylogenies
  Phylogenetic trees
    Terminology of tree reconstruction
    Rooted and unrooted trees
    Gene vs. species trees
    Character and distance data
  Distance matrix methods
    UPGMA
    Estimation of branch lengths
    Transformed distance method
    Neighbor's relation method
    Neighbor-joining methods
  Maximum likelihood approaches
  Multiple sequence alignments
V. CHARACTER-BASED APPROACHES TO PHYLOGENETICS
  Parsimony
    Informative and uninformative sites
    Unweighted parsimony
    Weighted parsimony
  Inferred ancestral sequences
  Strategies for faster searches
    Branch and bound
    Heuristic
  Consensus trees
  Tree confidence
    Bootstrapping
    Parametric tests
  Comparison of phylogenetic methods
  Molecular phylogenies
    The tree of life
    Human origins
VI. GENOMICS AND GENE RECOGNITION
  Prokaryotic genomes
  Prokaryotic gene structure
    Promoter elements
    Open reading frames
    Conceptual translation
    Termination sequences
  GC-content
  Prokaryotic gene density
  Eukaryotic genomes
  Eukaryotic gene structure
    Promoter elements
    Regulatory protein binding sites
  Open reading frames
    Introns and exons
    Alternative splicing
    CpG islands
  GC-content
    Isochores
    Codon usage bias
  Gene expression
    cDNAs and ESTs
    Serial analysis of gene expression (SAGE)
    Microarrays
  Transposition
  Repetitive elements
  Eukaryotic gene density
VII. PROTEIN FOLDING
  Polypeptide composition
    Amino acids
    Backbone flexibility, phi and psi
  Secondary structure
    Accuracy of predictions
    Chou-Fasman/GOR method
  Tertiary and quaternary structure
    Hydrophobicity
    Disulfide bonds
    Active structures vs. most stable structures
  Protein folding
    Lattice models
    Off-lattice models
    Energy functions and optimization
  Structure prediction
    Comparative modeling
    Threading: Reverse protein folding
  Predicting RNA secondary structures
VIII. PROTEOMICS
  From genomes to proteomes
  Protein classification
    Enzyme nomenclature
    Families and superfamilies
    Folds
  Experimental techniques
    2D electrophoresis
    Mass spectrometry
    Protein microarrays
  Inhibitors and drug design
  Ligand screening
    Docking
    Database screening
  X-ray crystal structures
  Empirical methods and prediction techniques
  Postranslational modification prediction
    Protein sorting
    Proteolytic cleavage
    Glycosylation
    Phosporylation and sulfation
Appendix 1: A gentle introduction to programming and data structures
  Introduction
  The basics
    Creating and compiling computer programs
    Variables and values
    Data typing
    Basic operations
  Program control
    Statements and blocks
    Conditional execution
    Loops
  Readability
    Structured programming
    Comments
    Descriptive variable names
  Data structures
    Arrays
    Pointers and dynamic memory allocation
    Strings in PERL
  Input and output
Appendix 2: Enzyme kinetics
  Enzymes as biological catalysts
  The Henri-Michaelis-Menten equation
    Vmax and Km
    Direct plot
    Lineweaver-Burk reciprocal plot
    Eadie-Hofstee plot
  Simple inhibition systems
    Competitive inhibition
    Noncompetitive inhibition
    Reversible and irreversible inhibition
    Effects of pH and temperature
Appendix 3: Sample programs in PERL and worksets
  Conceptual translation
  Dot matrix
  Relative rate test
  UPGMA
  Common ancestor
  Splice junction recognition
  Hydrophobicity calculator
  DNA binding domains
  Lineweaver-Burk plot