| http://www.w3.org/ns/prov#value | - Enzyme: A substance (usually a protein) that directs and accelerates chemical reactions in the body but does not itself undergo permanent change.Epigenetic: Referring to heritable changes in phenotype or gene expression caused by mechanisms other than changes in the underlying deoxyribonucleic acid (DNA) sequence.Ester: An organic chemical compound formed by the reaction of an organic acid (e.g.,
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