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Chapter

Cover Introduction to Bioinformatics

Metabolic pathways  

This chapter explores metabolic pathways, which are the road maps defining the possible transformations of metabolites. They form a network, representable as a graph, usually with the metabolites as nodes, and reactions connecting them as edges. The enzyme that catalyses each reaction labels the edge. The chapter then looks at the defining principles of the Enzyme Commission and the Gene Ontology ConsortiumTM classifications of the functions of biological molecules. It considers the importance of accurate annotation of enzyme function in databases, before outlining the databases of metabolic networks. The chapter also discusses the physicochemical basis of enzymatic catalysis, and the quantities needed to characterize their kinetics. Finally, it examines how the algorithms for comparison of nucleic acid and amino acid sequences can be generalized to compare and align metabolic pathways.

Book

Cover Introduction to Bioinformatics

Arthur M. Lesk

Introduction to Bioinformatics starts off by introducing the topic. It then looks at genetics and genomes. It moves on to consider the panorama of life. The text also considers alignments and phylogenetic trees. There is a chapter on structural bioinformatics and drug discovery. The text also examines scientific publications and archives, particularly media, content, access, and presentation. Artificial intelligence is considered as well, in addition to machine learning. There is an introduction to systems biology that follows towards the end. The book's final chapters look at metabolic pathways and control of organization.