TY - JOUR AU - ÖZGEN, ARZU AU - GÜRKAN AYDIN, SİNEM PY - 2023/05/13 Y2 - 2024/03/28 TI - Geometric Modelling and Analysis of the Amino Acid: Phenylalanine JF - International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE JA - IJASRE VL - 9 IS - 5 SE - Articles DO - 10.31695/IJASRE.2023.9.5.5 UR - https://ijasre.net/index.php/ijasre/article/view/1689 SP - 43-47 AB - <p><em>L-phenylalanine (Phe), an essential amino acid, is necessary for the synthesis of proteins such as catecholamine and melanin, and is also the precursor of the amino acid L-tyrosine (Tyr). In this paper, optimized structures of Phe, were calculated by using using semi-empirical models such as AM1, PM3 and MNDO; Density Functional models (DFT) at B3LYP and Hartreefock methods (HF) with 6-311++G (d,p) level.&nbsp; The energies and geometric parameters of Kaempferol were also determined</em></p> ER -