Question

Fill in the blanks for each amino acid

Amino Acid Properties Name of R-group Properties Amino Acid Type of Polarity pKa Charge at Special functional group pH-7 Properties (hn(wpp)amgies applicable) (whpee Alanine Arginine Asparagine Aspartate Carboxyl Polar 3.9 Sulfhydryl Polar N/A Forms S-S Glutamine Glutamate Histidine Isoleucine Lysine Methionine Phenylalanine Aromatic Non-Polar Absorbs G@ 280 nm N/A Proline Can be Serine Threonine Tryptophane Tyrosine Valine

Answer 1

Amino acid	Functional group	Polarity	pKa	Charge at pH=7	Special properties
Alanine	Carboxyl, Amino	Non polar	2.35 (carboxyl), 9.69 (Amino)	No charge	Optically active, Ambivalent
Arginine	Carboxyl, Amino	Polar	12.48	Positive	Has important role in nitrogen metabolism
Asparagine	Carboxyl, Amino	Polar	2.02 (carboxyl), 8.80 (Amino)	No charge	Used in biosynthesis of protein
Aspartet					Important enzyme in amino acid metabolism
Cysteine
Glutamine	Carboxyl, Amino	Polar	2.2 (carboxyl), 9.1 (Amino)	No charge	Used in biosynthesis of protein
Glutamet	Carboxyl	Polar	NA	Negative	Neurotransmitter
Glycine	Carboxyl, Amino		2.34 (carboxyl), 9.6 (Amino)	No charge	Proteinogenic
Histidine	Carboxyl, Amino, Immidazole side chain	Polar	NA	Positive	Inflametory agent
Isoleucine	Carboxyl, Amino	Non polar	NA	No charge	Used in biosynthesis of protein
Leucine	Carboxyl,Amino	Non polar	NA	No charge	Branched chein amino acid
Lysine	Carboxyl, Amino	Polar	NA	Positive	Used in biosynthesis of protein
Methionine	Carboxyl, Amino	Non polar	2.28(carboxyl), 9.21 (Amino)	No charge	Related to cancer growth
Phenylalanine	Carboxyl, Amino	Non polar	1.83 (carboxyl), 9.13 (Amino)	No charge	Treat depression
Proline	Carboxyl, Amino	Non polar	1.99 (carboxyl), 10.96 (Amino)	No charge	Important role in intracellular signaling
Serine	Carboxyl, Amino	Polar	2.21 (carboxyl), 9.15 (Amino)	No charge	Proper functioning of brain & CNS
Threonine	Carboxyl, Amino, Hydroxyl	Polar	2.63 (carboxyl), 10.43 (Amino)	No charge	Vital in protein synthesis
Tryptophane	Carboxyl, Amino	Non polar	2.38 (carboxyl), 9.39 (Amino)	No charge	Building blocks of protein synthesis
Tyrosine	Phenol	Non polar	NA	No charge	Neurotransmitter
Valine	Carboxyl, Amino	Non polar	2.32 (carboxyl), 9.62 (Amino)	No charge	Has stimulant effect