Glycolysis
Page: 1-33 (33)
Author: Marco Brito-Arias*
DOI: 10.2174/9789811460906120010002
PDF Price: $30
Abstract
The biochemical process known as glycolysis is a fundamental pathway, which allow the glucose to be transformed into energy (ATP) and pyruvate. During this process the glucose is first phosphorylated at the 6th position, then converted to fructose by the phosphoglucose isomerase and phosphorylated to fructose 1,6- biphosphate. The next steps involve the bond cleavage by the enzyme fructose biphosphate aldolase to dihydroxyacetone phosphate and glyceraldehyde 3-phosphate, which can be converted from the keto to the aldehyde by the enzyme triose phosphate isomerase. A second phosphorylation of glyceraldehyde 3-phosphate takes place by the enzyme glyceraldehyde-3-phosphate dehydrogenase in the presence of NAD+ and Pi providing 1,3-bisphosphoglycerate. The next step was mediated by the enzyme phosphoglycerate kinase to produce ATP and 3-phosphoglycerate which undergoes phosphate migration producing 2-phosphoglycerate. Further dehydration mediated by the enzyme enolase produce phosphoenolpyruvate which is finally converted by the enzyme pyruvate kinase to pyruvate and the release of a second ATP molecule.
Citric Acid Cycle (Krebs)
Page: 34-56 (23)
Author: Marco Brito-Arias*
DOI: 10.2174/9789811460906120010003
PDF Price: $30
Fatty Acid Biosynthesis
Page: 57-89 (33)
Author: Marco Brito-Arias*
DOI: 10.2174/9789811460906120010004
PDF Price: $30
Aminoacid Biosynthesis
Page: 90-287 (198)
Author: Marco Brito-Arias*
DOI: 10.2174/9789811460906120010005
PDF Price: $30
Introduction
Multidisciplinary research involving crystallography, kinetic studies, molecular docking, genetics and other techniques in biochemistry has yielded a wealth of knowledge about the reaction mechanisms in cellular processes. This knowledge has allowed researchers to understand, in a better way, the normal functioning of the cell process, which is used as a reference point for learning about and preventing or correcting pathologies that cause diseases. This enzymology reference is a thorough compendium about reaction mechanisms occurring between the major enzymes related to the biosynthetic pathways of 3 important types of biological compounds – 6-carbon carbohydrates, fatty acids and amino acids – and their substrates, cofactors and residues. Readers will gain an understanding of the interaction between substrates or ligands with specific amino acid residues in biosynthetic enzymes. This understanding builds a foundation for learning about the biochemistry of different inhibitors used in the treatment of several diseases such as cancer, infectious diseases, and metabolic syndrome alterations such as diabetes and obesity. Enzymes covered in the book include aldolases, isomerases, kinases, mutases, synthases, dehydrogenases, reductases, transferases, hydrolases, lyases among others, all of which are wide spread in biochemical transformations. This reference, with its insights on common biochemical enzymes serves as a handy guide for students, researchers and professionals involved academia or industry related to pharmaceutical development, healthcare, food chemistry and other disciplines.