Design, Synthesis, and Mechanistic Studies of (R)‑3-Amino-5,5-difluorocyclohex-1-ene-1-carboxylic Acid as an Inactivator of Human Ornithine Aminotransferase
Devitt A, Vargas A, Zhu W, Soye B, Butun F, Alt T, Kaley N, Ferreira G, Moran G, Kelleher N, Liu D, Silverman R. Design, Synthesis, and Mechanistic Studies of (R)‑3-Amino-5,5-difluorocyclohex-1-ene-1-carboxylic Acid as an Inactivator of Human Ornithine Aminotransferase. ACS Chemical Biology 2024, 19: 1066-1081. PMID: 38630468, PMCID: PMC11274680, DOI: 10.1021/acschembio.4c00022.Peer-Reviewed Original ResearchConceptsActive siteX-ray crystallographyIntact protein mass spectrometryHuman ornithine aminotransferaseNucleophilic additionRing scaffoldMass spectrometryIntermediate speciesProtein mass spectrometryIncreased selectivityTransient state kinetic studiesX-rayMechanistic studiesAdductsSolvent accessibilityKinetic studiesHepatocellular carcinomaProgression of hepatocellular carcinomaMechanism of inactivationStructural evidencePrevalence of hepatocellular carcinomaTreatment of hepatocellular carcinomaCyclohexeneCyclopenteneCrystallography