Enzymes for Reactions Flashcards
Phenylalanine → Tyrosine
- Phenylalanine Hydroxylase
- (EC1)
- (Oxidoreductase)
Tyrosine → DOPA
- Tyrosine Hydroxylase
- (EC1)
- (Oxidoreductase)
DOPA → Dopamine
- DOPA Decarboxylase
- (EC4)
- (Lyase)
Dopamine → NoREpinephrine
- Dopamine ß-Oxidase
- (EC1)
- (Oxidoreductase)
NoREpinephrine → Epinephrine
- Phenylethanol-amine N-Methyl-transferase
- (EC2)
- (Transferase)
Tryptophan → 5-Hydroxytryptophan
- Tryptophan Hydroxylase
- (EC1)
- (Oxidoreductase)
5-Hydroxytryptophan → Serotonin
- Aromatic Amino Acid Decarboxylase
- (EC4)
- Lyase
Serotonin → N-Acetylserotonin
- N-Acetyl Transferase
- (EC2)
- (Transferase)
N-Acetylserotonin → Melatonin
- 5-Hydroxyindole-O-methyltransferase
- (EC2)
- (Transferase)
Histidine → Histamine
- Histidine Decarboxylase
- (EC4)
- (Lyase)
Glutamic Acid → GABA
- L-Glutamic Acid Decarboxylase (GAD) [Pyridoxal Phosphate as a cofactor]
- (EC4)
- (Lyase)
Which amino acid can Epinephrine be derived from?
Phenylalanine
Which amino acid can Taurine be derived from?
Cysteine
4-Aminobutanoic Acid (GABA) is formed by decarboxylation of which amino acid?
Glutamic Acid
The pI of an amino acid with 3 ionizable groups is given as 4.0. Which of the following is true?
A) Has a non polar side chain
B) Has an acidic side chain
C) Has a basic side chain
D) None of the above
B) Has an acidic side chain
Which of these amino acids is not used for the synthesis of Purines?
A) Gln
B) Gly
C) Asp
D) Glu
D) Glutamic Acid
You need to isolate Glycine from the following tetrapeptide: AlnylSerylValylGlycine. Which enzyme would you use?
A) Carboxypeptidase
B) Aminopeptidase
A) Carboxypeptidase
What is Carboxypeptidase categorized as?
Hydrolase
What molecule keeps Hemoglobin in its “T” form?
2,3-BPG
2,3-BPG forms what kind of bonds with the quarternary structure of hemoglobin?
Electrostatice force of attraction (Salt Bridges)
CO2 id carried back to the lungs by hemoglobin as what functional group?
Carbamate
What type of enzyme converts Succinate to Fumarate?
Oxidoreductase
The trival name of an enzyme is a Synthatase. What category of enzyme would you classify this enzyme as?
Ligase