Question

what are the functional groups in phenylalanine?

Answer 1

Functional group in an Amino Acid is known as the R-Group
Phenylalanine; a methyl group with a benzene ring attached.

Run the plug in to see the 3D model;
http://www.biotopics.co.uk/JmolApplet/phejdisplayhalos.html

Answer 2

And its called Methylbenzene

Answer 3

\begin{array}l\color{#FF0000}{\text{HEY}}\end{array}\begin{array}l\color{#FF7F00}{\text{SEXY}}\end{array}\begin{array}l\color{#FFFF00}{\text{WANNA}}\end{array}\begin{array}l\color{#00FF00}{\text{DANCE?}}\end{array}

Answer 4

\begin{array}l\color{#FF0000}{\text{L}}\color{#FF7F00}{\text{O}}\color{#FFFF00}{\text{O}}\color{#00FF00}{\text{K}}\color{#0000FF}{\text{ }}\color{#0000FF}{\text{A}}\color{#6600FF}{\text{T}}\color{#8B00FF}{\text{ }}\color{#FF0000}{\text{M}}\color{#FF7F00}{\text{E}}\color{#FFFF00}{\text{ }}\color{#FFFF00}{\text{I}}\color{#00FF00}{\text{ }}\color{#00FF00}{\text{C}}\color{#0000FF}{\text{A}}\color{#6600FF}{\text{N}}\color{#8B00FF}{\text{ }}\color{#FF0000}{\text{D}}\color{#FF7F00}{\text{O}}\color{#FFFF00}{\text{ }}\color{#FFFF00}{\text{R}}\color{#00FF00}{\text{A}}\color{#0000FF}{\text{I}}\color{#6600FF}{\text{N}}\color{#8B00FF}{\text{B}}\color{#FF0000}{\text{O}}\color{#FF7F00}{\text{W}}\color{#FFFF00}{\text{S}}\color{#00FF00}{\text{!}}\color{#0000FF}{\text{!}}\color{#6600FF}{\text{!}}\color{#8B00FF}{\text{ }}\color{#FF0000}{\text{:}}\color{#FF7F00}{\text{-}}\color{#FFFF00}{\text{D}}\end{array}

Answer 5

As in any amino acid, there is the alpha-carboxyl group (COOH) and the alpha-amino group (NH3) that are part of the "backbone" of the amino acid. These are the two functional groups that will allow that amino acid to bind other amino acids on either side in order to make a chain via peptide bonds. The R-group functionality of phenylalanine is a phenyl group, which is basically a benzene ring attached to the rest of the amino acid. The phenyl group is aromatic, and that allows it to interact with other aromatic amino acids nearby. Aromatic rings can stack like pancakes on top of one another and form strong interactions that way. They are also very hydrophobic structures.