All 20 Amino acids visible in 3-D on a single page

Each molecular model is independently movable in any direction by mouse dragging, and extra information may be revealed by hovering your mouse over the name at the bottom. Clicking on the name will also bring up a larger individual viewer.
Every amino acid has an amino group ( -NH2 : blue, with 2 whites) and a carboxylic acid group (-COOH : grey, with 2 reds and a white).
Each one also has a unique R group - 6 or 7 categories.

glycine - gly

alanine - ala

valine - val

leucine - leu

isoleucine - ile
ALIPHATIC

These R groups are simple (linear) groups of carbon and hydrogen atoms
HYDROXY

These R groups have an extra -OH group (red and white)

serine - ser

threonine - thr

lysine - lys

histidine - his

arginine - arg
BASIC

These R groups contain extra N atoms which contribute basic (alkaline) characteristics
AROMATIC

These R groups have rings based on benzene

phenylalanine
- phe

tyrosine
- tyr

tryptophan
- trp

cysteine
- cys

methionine
- met
SULPHUR-
CONTAINING

These R groups contain sulphur!
DICARBOXYLIC
& AMIDES

These R groups contain -COOH or - CONH2 groups

aspartic acid
- asp

asparagine
- asn

glutamic acid
- glu

glutamine
- gln

proline
- pro
IMINO

The >NH group (blue dot in the ring) makes this an imino acid, not an amino acid
(not a property of the R group)
Click here to close this window
Mouse and movement options    Colours explained
Orphan rescue: Click on one of the links below if you are stranded on this page without an escape route:
Sub-contents - more Jmol files      Contents page    Front (index) page