5. Homocystinuria is caused by a defect in cystathionine beta-synthase (or ẞ-synthase), which leads to an accumulation of homocysteine in the blood. This accumulation causes symptoms such as a tall, thin frame, flushed cheeks, and osteoporosis (thinning of the bones). These individuals should limit their intake of proteins that contain methionine, such as egg whites. Using your understanding of biochemistry, explain why people with Homocystinuria should not consume egg whites and other such proteins. ✓✓✓ HS. NH2 Homocysteine OH H H₂N-C-COOH CH₂ I CH₂ CH3 methionine (Met, M)
5. Homocystinuria is caused by a defect in cystathionine beta-synthase (or ẞ-synthase), which leads to an accumulation of homocysteine in the blood. This accumulation causes symptoms such as a tall, thin frame, flushed cheeks, and osteoporosis (thinning of the bones). These individuals should limit their intake of proteins that contain methionine, such as egg whites. Using your understanding of biochemistry, explain why people with Homocystinuria should not consume egg whites and other such proteins. ✓✓✓ HS. NH2 Homocysteine OH H H₂N-C-COOH CH₂ I CH₂ CH3 methionine (Met, M)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:5. Homocystinuria is caused by a defect in cystathionine beta-synthase (or ẞ-synthase), which leads to an
accumulation of homocysteine in the blood. This accumulation causes symptoms such as a tall, thin
frame, flushed cheeks, and osteoporosis (thinning of the bones). These individuals should limit their
intake of proteins that contain methionine, such as egg whites. Using your understanding of
biochemistry, explain why people with Homocystinuria should not consume egg whites and other such
proteins. ✓✓✓
HS.
NH2
Homocysteine
OH
H
H₂N-C-COOH
CH₂
I
CH₂
CH3
methionine
(Met, M)
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