atp synthase abiogenesis acetyl active site acyl adenosine adenosine diphosphate adenosine triphosphate aldehyde alkaloid allosteric regulation amino acid archaea arthur harden ascorbic acid bacteria binding site biochemistry biotin carbohydrate carbonyl carotenoid catalytically perfect enzyme city university of new york cobamamide coenzyme a coenzyme b coenzyme m cooperativity cytidine triphosphate dehydrogenase digital object identifier dihydrofolic acid ec number electron enzyme enzyme catalysis enzyme inhibitor enzyme kinetics eukaryote exaptation fad flavin flavin mononucleotide flavonoid folic acid fritz albert lipmann functional group glutamic acid glutathione glycoprotein glycoside hans von euler-chelpin herman kalckar history of biochemistry hydrolase hydrolysis iron-sulfur protein isomerase kinase last universal ancestor ligase lipid lipoic acid list of enzymes lyase medical subject headings metabolism methanofuran methanogen methyl group methylcobalamin methylene molecule molybdenum molybdopterin monosaccharide national institutes of health niacin nicotinamide adenine dinucleotide nucleotide nucleotide sugar organic compound otto heinrich warburg oxidoreductase oxygen pantothenic acid peptide phosphate phosphorylation polyketide prosthetic group protein protein domain pyrroloquinoline quinone rna world hypothesis redox reductase riboflavin ribozyme s-adenosyl methionine selenium steroid sulfate terpene tetrahydrobiopterin tetrahydrofolic acid tetrahydromethanopterin tetrapyrrole timeline of evolution transferase vitamin vitamin k yeast