Editing Glycolysis (section)

== Structure of glycolysis components in Fischer projections and polygonal model ==

The intermediates of glycolysis depicted in Fischer projections show the chemical changing step by step. Such image can be compared to polygonal model representation.<ref name="bonafe">{{cite journal | vauthors = Bonafe CF, Bispo JA, de Jesus MB | title = The polygonal model: A simple representation of biomolecules as a tool for teaching metabolism | journal = Biochemistry and Molecular Biology Education | volume = 46 | issue = 1 | pages = 66–75 | date = January 2018 | pmid = 29131491 | doi = 10.1002/bmb.21093 | s2cid = 31317102 | doi-access = free }}</ref>

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{{wide image|Glycolysis--F-PM.png|1430px|Glycolysis - Structure of anaerobic glycolysis components showed using Fischer projections, left, and polygonal model, right. The compounds correspond to glucose (GLU),  glucose 6-phosphate (G6P), fructose 6-phosphate (F6P), fructose 1,6-bisphosphate ( F16BP), dihydroxyacetone phosphate (DHAP), glyceraldehyde 3-phosphate(GA3P), 1,3-bisphosphoglycerate (13BPG), 3-phosphoglycerate (3PG), 2-phosphoglycerate (2PG), phosphoenolpyruvate (PEP), pyruvate (PIR), and lactate (LAC). The enzymes which participate of this pathway are indicated by underlined numbers, and correspond to hexokinase (<u>1</u>), glucose-6-phosphate isomerase (<u>2</u>), phosphofructokinase-1 (<u>3</u>), fructose-bisphosphate aldolase (<u>4</u>), triosephosphate isomerase (<u>5</u>), glyceraldehyde-3-phosphate dehydrogenase (<u>5</u>),  phosphoglycerate kinase (<u>7</u>), phosphoglycerate mutase (<u>8</u>), phosphopyruvate hydratase (enolase) (<u>9</u>), pyruvate kinase (<u>10</u>), and lactate dehydrogenase (<u>11</u>). The participant coenzymes (NAD<sup>+</sup>, NADH + H<sup>+</sup>, ATP and ADP), inorganic phosphate, {{chem2|H2O}} and {{chem2|CO2}} were omitted in these representations. The phosphorylation reactions from ATP, as well the ADP phosphorylation reactions in later steps of glycolysis are shown as ~P respectively entering or going out the pathway. The oxireduction reactions using NAD<sup>+</sup> or NADH are observed as hydrogens "2H" going out or entering the pathway.}}
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