Developing a logical model of yeast metabolism

Reiser, PGK; King, RD; Muggleton, SH; Bryant, CH; Oliver, SG; Kell, DB

Abstract

With the completion of the sequencing of genomes of increasing numbers of organisms, the focus of biology is moving to determining the role of these genes (functional
genomics). To this end it is useful to view the cell as a
biochemical machine: it consumes simple molecules to manufacture more complex ones by chaining together biochemical reactions into long sequences referred to as em metabolic pathways. Such metabolic pathways are not
linear but often interesect to form complex networks. Genes play a fundamental role in these networks by providing the information to synthesise the enzymes that catalyse biochemical reactions. Although developing a complete model of metabolism is of fundamental importance to biology and medicine, the size and complexity of the network has proven beyond the capacity of human reasoning. This paper presents the first results of the Robot Scientist research programme that aims to automatically discover the function of genes in the metabolism of the yeast em Saccharomyces cerevisiae. Results include: (1) the first logical model of metabolism;(2) a method to predict phenotype by deductive inference; and (3) a method to infer reactions and gene function by aductive inference. We describe the em in vivo experimental set-up which will allow these em in silico predictions to be automatically tested by a laboratory robot.

Citation

Reiser, P., King, R., Muggleton, S., Bryant, C., Oliver, S., & Kell, D. (2001). Developing a logical model of yeast metabolism

• Journal Article Type: Article
• Publication Date: Jan 1, 2001
• Deposit Date: Feb 16, 2009
• Publicly Available Date: Feb 16, 2009
• Journal: Electronic Transactions in Artificial Intelligence
• Print ISSN: 14033534
• Peer Reviewed: Peer Reviewed
• Volume: 5
• Issue: B
• Pages: 223-244
• Keywords: metabolic pathways, logic programming
• Publisher URL: http://www.ep.liu.se/ej/etai/2001/013/