PEPTIDES

Question 1

PEPTIDES

Answer 1

I. HORMONES
A. Vasopressin/Anti-diuretic Hormone
B. Oxytocin

II. NEUROTRANSMITTER
A. Enkephalins

III. ANTIOXIDANT
A. Glutathione

Question 2

• ___________: ___ - ___ - ___ - ___ - ___ - ___ - ___ - ___ - ___
• substance that decreases urine production
• causes the kidneys to return more water to the blood thus decreasing urine volume

Answer 2

A. VASOPRESSIN/ANTI-DIURETIC HORMONE

• oligopeptide (9): Cys-Tyr-Phe-Gln-Asn- Cys-Pro-Arg-Gly
• CYFQNCPRG

Question 3

• ___________: ___ - ___ - ___ - ___ - ___ - ___ - ___ - ___ - ___
• hormone of love
• enhances contraction of the smooth muscle cells in the wall of the uterus
• stimulates milk ejection
• ____________: given to induce labor or to increase uterine tone and control hemorrhage just after giving birth

Answer 3

B. OXYTOCIN

• oligopeptide (9): Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly
• CTIQNCPLG
• synthetic oxytocin

Question 4

• _____________
• produced by the brain which binds to receptor sites to reduce pain

Answer 4

A. ENKEPHALIN

• pentapeptide

1. Met-enkephalin
2. Leu-enkephalin

Question 5

Met-enkephalin

Answer 5

Tyr-Gly-Gly-Phe-Met

YGGFM

Question 6

Leu-enkephalin

Answer 6

Tyr-Gly-Gly-Phe-Leu

YGGFL

Question 7

• __________: ___ - ____ - ____
• regulator of oxidation-reduction reactions
• protects cellular contents from oxidizing agents such as peroxides and superoxides

Answer 7

A. GLUTATHIONE

• tripeptide: gly-cys-glu
• GCQ