XiaLab at University of Ottawa

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BPS4104/BIO8102H Bioinformatics (Winter term)

Student composition: Biochem (9.80%), Biology (3.92%), BioMed (7.84%), BioPharm (76.47%), Geology (1.96%).


Textbook: Xia, X. 2018. Bioinformatics and the cell: Modern computational approaches in genomics, proteomics and transcriptomics. 2nd edition. (You can download the book free using a campus PC or purchase a hard copy for $24.99.)

Lab manual in PDF format

Download zone

Weekly schedule (Voice-over slides will be uploaded before each scheduled class):

2021-1-111Lec: String-matching algorithms in BLAST and FASTA
Lab: Sequence database and heuristic string matching: NCBI Entrez, BLAST and DAMBE
2021-1-183Lec: Motif-characterizing algorithms
Lab: Position weight matrix and motif characterization
2021-1-253Lec: Motif discovery with Gibbs sampler with optional EXCEL illustration
Lab: Gibbs Sampler and intron branchpoint sites (BPS)
2021-2-13Lec: Lec: Introduction to RNA-Seq analysis
Lab: RNA-Seq software demonstration only (~1 hr)
2021-2-83Lec: Amino acid and codon usage bias and indices
1st mid-term exam+Lab: Codon Usage Bias
2021-2-153Reading week
Reading week
2021-2-223Lec: Bioinformatics and translation initiation
Lab: Secondary Structure, MFE And IRES
2021-3-13Lec: Evolution of acid-resistance in Helicobacter pylori
Lab: Genomic Isoelectric Point Profiling
2021-3-83Lec: Sequence alignment by dynammic programming
Lab: Sequence Alignment
2021-3-153Lec: Transition bias and substitution models
Lab: Choosing The Best-Fit Substitution Model
2021-3-223Lec: Molecular phylogenetics
Mar. 22, 2nd mid-term exam+Lab: Molecular Phylogenetics
2021-3-293Lec: Molecular clock
Lab: Testing The Molecular Clock Hypotheses
2021-4-53Easter break
Easter break
2021-4-123Lec: Dating speciation and gene duplication events
Lab: Dating with the Least-Squares Method

Additional reading materials:

  1. Xia X. 2017. Bioinformatics and Drug Discovery. Currrent Topics in Medicinal Chemistry 17(15):1709-1726
  2. Xia X (2017) ARSDA: A New Approach for Storing, Transmitting and Analyzing Transcriptomic Data. G3: Genes|Genomes|Genetics 7:3839-3848
  3. Xia X. 2015. A major controversy in codon-anticodon adaptation resolved by a new codon usage index. Genetics 199:573-579
  4. Xia, X. 2012. Position Weight Matrix, Gibbs Sampler, and the Associated Significance Tests in Motif Characterization and Prediction. Scientifica, vol. 2012, Article ID 917540, 15 pages, 2012. doi:10.6064/2012/917540.
  5. Xia, X. , MacKay, V., Yao, X., Wu, J., Miura, F. Ito, T. Morris, D. R. 2011. Translation initiation: a regulatory role for poly(A) tracts in front of the AUG codon in Saccharomyces cerevisiae. Genetics 189:469-478
  6. Vlasschaert, C., Xia, X., Gray, D.A. 2016. Selection preserves Ubiquitin Specific Protease 4 alternative exon skipping in therian mammals. Scientific Reports 6:20039 .
  7. Xia, X. , Yang, Q. 2011. A Distance-based Least-square Method for Dating Speciation Events. Molecular Phylogenetics and Evolution 59:342-353.
  8. van Weringh, A, M. Ragonnet-Cronin, E. Pranckeviciene, M. Pavon-Eternod, L. Kleiman, X. Xia. 2011. HIV-1 modulates the tRNA pool to improve translation efficiency. Molecular Biology and Evolution 28:1827-1834
  9. Palidwor GA, Perkins TJ, Xia X. 2010. A General Model of Codon Bias Due to GC Mutational Bias. PLoS ONE 5(10): e13431.
  10. Xia, X., Holcik, M., 2009. Strong Eukaryotic IRESs Have Weak Secondary Structure. PLoS ONE 4, e4136.
  11. Carullo, M. and Xia, X. 2008 An extensive study of mutation and selection on the wobble nucleotide in tRNA anticodons in fungal mitochondrial genomes. Journal of Molecular Evolution 66:484-493 .
  12. Xia, X. 2007. The +4G site in Kozak consensus is not related to the efficiency of translation initiation. PLoS ONE 2(2):e188.
  13. Xia, X. and G. Palidwor. 2005. Genomic Adaptation to Acidic Environment: Evidence from Helicobacter pylori. American Naturalist 166:776-784
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