Name identify the correct structural formula of the amino acid isoleucine at a pH of 4.0. Use the table below Abbreviation Isoelectric Name: Abbreviation Isoelectric Point (pl) Point (pl) Glycine Gly 60 Alanine Ala 60 Valine Val 6.0 Leucine Lea 60 Isoleucine De 6.0 Phenyalanine Phe 5.S Methionine Met 5.7 Proline Pro 6.3 Tryptophan Trp Serine Ser 5.7 Threonine The 56 Tyrosine Tyr 5.7 Cysteine Cys 5.1 Asparagine Axe 5.4 Glutamine Gin 5.7 Aspartate Asp 2.8 Glutamate Gla 3.2 Histidine His 7.6 Lysine Lys 9.7 Arginine Arg 108 Select the correct answer below COOH H₂NC-H H-C CH3 CH₂ CH3 Isoleucine COOH H₂N CH HIC CH3 CH₂ CH3 0 Isoleucine COO HIC - CH₂ CH₂ CH₂ Isoleucine