| Term | Definition |
| alanine | CH3 |
| arginine | CH2--CH2--CH2--NH--C--(NH2)(NH2) |
| asparagine | CH2 -- (C=O) -- NH2 |
| cysteine | CH2--SH |
| glutamine | CH2 -- CH2 -- (C=O) -- NH2 |
| glycine | H |
| histidine | CH2-5ring(C--N--CH--NH--CH) |
| isoleucine | CH(CH3)--CH2---CH3 |
| leucine | CH2 -- CH -- (CH3)(CH3) |
| lysine | CH2---CH2---CH2---CH2---NH3+ |
| methionine | CH2---CH2---S--CH3 |
| phenylalanine | CH2--Benzene |
| proline | standard carbon in 5 ring (H2N-- CH2-- CH2--CH2--(C--(H)(COO-)) |
| serine | CH2 -- OH |
| threonine | CH(-OH)---CH3 |
| tryptophan | CH2- 5 ring structre ( NH at point)--benzene |
| tyrosine | CH2--BENZENE--OH |
| valine | CH -- (CH3) (CH3) |
| glutamate | CH2 -- CH2 -- COO- |
| Aspartate | CH2 -- COO- |