Question

1. Amino acid symbols and properties. Complete the table. Spend several minutes looking at Table 3-1 first. Then try to fill in the below by memory. Then try to remember those you forgot. The one and two letter codes are how parts of genome sequence are reported. You will need to understand this language to interpret these data, which are increasingly used in medicine and research. These symbols are used in many subsequent lecture as well.

	three letter symbol	one letter symbol	R group: class
Glycine*	Gly	G	non polar, aliphatic.
Alanine*
Proline*
Valine
Leucine
Isoleucine
Methionine*
Phenylanine
Tyrosine*
Tryptophan
Serine*
Threonine
Cysteine*
Asparagine*			Polar, uncharged.
Glutamine
Lysine*
Histidine*
Arginine
Aspartate*
Glutamate

Answer 1

AMINO ACID    THREE LETTER SYMBOL ONE LETTER SYMBOL R GROUP: CLASS

Glycine gly G   non polar, aliphatic

Alanine ala A non polar, aliphatic

Valine val V non polar, aliphatic

Leucine leu L    non polar, aliphatic

Isoleucine ile I   non polar, aliphatic  

Methionine met M polar,uncharged  

Phenylalanine phe F aromatic R groups

Tyrosine tyr Y   aromatic R groups

Tryptophan trp W   aromatic R groups

Serine ser S polar,uncharged  

Threonine thr T polar,uncharged  

Cysteine cys C polar,uncharged  

Asparagine asn N polar,uncharged  

Glutamine gln Q    polar,uncharged  

Lysine lys K   positively charged R groups

Histidine his H   positively charged R groups

Arginine arg R positively charged R groups

Aspartate asp D negatively charged R groups

Glutamate glu E negatively charged R groups