BIOCHEM : AMINO ACIDS CLASSIFICATION

Alanine (Ala)

Asparagine (Asn)

Glutamine (Gln)

Cysteine (Cys)

Glycine (Gly)

Isoleucine (Ile)

Leucine (Leu

Methionine (Met)

Phenylalanine (Phe)

Proline (Pro)

Serine (Ser)

Threonine (Thr)

Valine (Val)

Tryptophan (Trp)

Tyrosine (Tyr)

Neutral Common Amino Acids

• Aspartic Acid (Asp) or Aspartate

• Glutamic (Glu) or Glutamate

Acidic Amino Acids

• Arginine (Arg)

• Histidine (His)

• Lysine (Lys)

Basic Amino Acids

5

How many alipathic non polar side chains of amino acids are there?

• Alanine (Ala) : A

• Glycine (Gly) : G

• Isoleucine (Ile) : I

• Leucine (Leu) : L

• Valine (Val) : V

Alipathic non-polar side chains

3

How many aromatic side chains amino acids are there?

• Phenylalanine (Phe) : F

• Tyrosine (Tyr) : Y

• Tryptophan (Trp) : W

Aromatic Side Chains Amino Acid

2

How many Hydroxyl-containing side chains Amino Acids are there?

• Serine (Ser) : S

• Threonine (Thr) : T

Hydroxyl - containing side chains

• Cysteine (Cys) : C

• Methionine (Met) : M

Sulfur-containing side chains

2

How many acidic amino acids are there?

• Aspartate (Asp) : D

• Glutamate (Glu) : E

Acidic Amino Acids

2

How many amidic side chains are there?

• Asparagine (Asn) : N

• Glutamine (Gln) : Q

Amidic Side Chains Amino Acids

3

How many basic amino acids are there?

• Arginine (Arg) : R

• Histidine (His) : H

• Lysine (Lys) : K

Basic Amino Acids

1

How many Imino Acids are there?

Proline (Pro) : P

Imino Acids

10

How many non-polar amino acids are there?

• Alanine

• Isoleucine

• Leucine

• Methionine

• Phenylalanine

• Prline

• Tryptophan

• Tyrosine

• Valine

• Glycine

Non Polar amino acids

5

How many polar amino acids are there?

• Asparagine

• Cysteine

• Glutamine

• Serine

• Threonine

Polar amino acids

2

How many acidic amino acids are there?

• Aspartic Acid

• Glutamic Acid

Acidic Amino Acids

3

How many Basic Amino Acids are there?

• Arginine

• Histidine

• Lysine

Basic Amino Acids

10

How many amino acids are essential for humans?

• Phenylalanine

• Valine

• Tryptophan

• Threonine

• Isoleucine

• Methionine

• Leucine

• Lysine

• Histidine (relatively essential)

• Arginine (relatively essential)

Amino Acid Essential for humans

• Arginine

• Histidine

Relatively essential amino acids for humans