What type of interaction would you expect between the R groups of the following amino acids in a quaternary structure? d. alanine and proline

Hello, everyone. Today, we have the following problem in a protein's Quain structure. What type of interaction is exhibited between the side chains of the following pair of amino acids, tyrosine and phenylalanine. A ionic bond. B hydrogen bond C hydrophobic interaction or D disulfide bond. So we wanna consider the properties of amino acids. So we have phenol alanine and this is a non polar amino acid, meaning it is considered hydrophobic examining tyrosine tyzine includes a hydroxyl group on an aromatic ring. And because of the presence of this hydroxy group, this amino acid tyrosine can participate in hydrogen bonding. So let's go through ranger traces and trace a ionic bond is incorrect as this involves the attraction between opposite charges b hydrogen bond is incorrect. As while tyrosine can pheno alanine does not have a hydrogen bonding partner. And C hydrophobic interaction is going to be our correct answer. And then trace d disulfide bond is incorrect as these involve cul linkages between cysteine residues. And with that, we have solved the problem overall, I hope this helped Hansel next time