kinetics molecular docking ACE ACE protein, human ANTIHYPERTENSIVE PEPTIDES Angiotensin converting enzyme inhibitory activity Animals Article BINDING Catalysis Catalytic Domain Gene Expression Regulation Humans Hydrolysis IC50 Kinetics Michaelis constant Models, Molecular Molecular Docking Simulation Molecular docking Palm Oil Peptide Peptide Fragments Peptidyl-Dipeptidase A Plant Proteins VITRO amino acid sequence angiotensin converting enzyme inhibitory activity animal binding affinity