210 likes | 370 Views
UC Berkeley Phylogenomics Kimmen Sj ö lander http://phylogenomics.berkeley.edu kimmen@uclink.berkeley.edu Algorithm & tool development for protein structure-function prediction. Investigation of innate immunity in plants and animals: Brian Staskawicz (Plant & Microbial Biology)
E N D
UC Berkeley PhylogenomicsKimmen Sjölanderhttp://phylogenomics.berkeley.edukimmen@uclink.berkeley.eduAlgorithm & tool development for protein structure-function prediction. Investigation of innate immunity in plants and animals:Brian Staskawicz (Plant & Microbial Biology) Barbara Baker (Plant & Microbial Biology) Richard Michelmore (UCDavis) Dan Portnoy (MCB) Jonathan DG Jones, Sainsbury Laboratory (UK) Thanks to the National Science Foundation for continued support Group Members: Wayne Christopher, Ph.D. Bob Edgar, Ph.D. Duncan Brown Dan Holliman And a number of talented undergrads: Jenny Liu, Jason Chan, Eric Roller, Joey Davis, Michael Jurka, Sonia Wu
Engineering Mathematics Biology Chemistry & Pharmacology Ethics & Law Computer Science Genomics / bioinformatics /computational biology
Algorithm development • Protein fold prediction and homolog identification • Phylogenetic inference • Structure-function analysis and prediction • Predict structural motifs conferring functional specificity • Effects of allelic variation on protein function/structure • Identify structural domains • Pathway dissection, using prediction of protein-protein (and other inter-molecular) interactions BioE 144: “Intro to Protein Informatics”
Antimicrobial Protein 1 Common horse chestnut What is remote homolog detection? 1BK8 1MYN Drosomycin, Antifungal protein Fruit Fly 22% Pairwise identity
Homolog recognition in the Twilight ZoneCASP2 Target T0031 1TRY TRYPSIN Fusarium Oxysporum (Fungus) EXFOLIATIVE TOXIN A Staphylococcus aureus (Bacteria) 16% pairwise identity
Predicting key positions in proteins Src homology 2 (SH2) domain
Panther Molecular Function Classification of the Human Genome
The Universal Protein Library (UPL) U.S. Patent No. 6,128,587 Bayesian Evolutionary Tree Estimation (BETE): U.S. Patent No. 6,128,587
Subfamilies found by BETE; Tree displayed at subfamily level. Trees as predictive models
ATale of Two DomainsHidden Markov models, Potassium channels,and excursions in the Twilight Zone
Common domains are found in proteins of diverse function and structure ZA70_human (tyrosine-protein kinase) Nck_human (adapter protein) (PFAM domain identification shown)
Domain analysis of Voltage-gated K+ channels HMM positions
Predictions: • Structure of TNF-alpha induced protein B12 is homologous to K+ channel tetramerization domain • TNF-alpha affects K+ current by • inducing protein B12, which • interacts with the K+ channel at tetramerization domain. 1T1DA Tetramerization Domain of K+ channels
Investigation into innate immunity Brian Staskawicz (Plant & Microbial Biology) Barbara Baker (Plant & Microbial Biology) Richard Michelmore (UCDavis) Dan Portnoy (MCB) Jonathan DG Jones, Sainsbury Laboratory (UK)
Plant and Animal Innate Immunity Mediated by Related Proteins Cytoplasmic Toll Interleukin 1 Receptor (TIR) domain
1CN2 Defensin-related proteins Toxin 2 Mexican scorpion (Na+ channel inhibitor) 1BK8 Antimicrobial Protein 1 Common horse chestnut 1ICA 1MYN Insect Defensin A Antibacterial protein Flesh Fly Drosomycin, Antifungal protein Fruit Fly
Gordon Research Conference on Bioinformatics 24-29 Aug 2003 Oxford University www.grc.org
UC Berkeley Phylogenomics Group Members: Wayne Christopher, Ph.D. Bob Edgar, Ph.D. Duncan Brown Dan Holliman And a number of talented undergrads: Jenny Liu, Jason Chan, Eric Roller, Joey Davis, Michael Jurka, Sonia Wu Investigation of innate immunity in plants and animals:Brian Staskawicz (Plant & Microbial Biology) Barbara Baker (Plant & Microbial Biology) Richard Michelmore (UCDavis) Dan Portnoy (MCB) Jonathan DG Jones, Sainsbury Laboratory (UK) Thanks to the National Science Foundation kimmen@uclink.berkeley.edu http://phylogenomics.berkeley.edu