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Topic: Phenylalanine


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In the News (Sat 28 Nov 09)

  
  Encyclopedia :: encyclopedia : Phenylalanine hydroxylase   (Site not responding. Last check: 2007-10-05)
Phenylalanine hydroxylase (EC enzyme which catalyses the reaction causing the addition of an hydroxyl group to the end of the 6-carbon aromatic ring of phenylalanine, such that it becomes tyrosine.
Phenylalanine hydroxylase is the rate-limiting enzyme of the metabolic pathway which degrades excess phenylalanine.
Phenylalanine hydroxylase is a tetramer, that is, composed of four subunits.
www.hallencyclopedia.com /Phenylalanine_hydroxylase   (226 words)

  
 Phenylketonuria: Encyclopedia of Genetic Disorders
The primary diagnostic test for PKU is the measurement of phenylalanine levels in a drop of blood taken from the heel of a newborn baby's foot.
The amount of natural foods allowed in a diet could be adjusted to ensure that the level of phenylalanine in the blood is kept within a safe range—two to 6 mg/dL before 12 years of age and 2–15 mg/dL for PKU patients over 12 years old.
Mothers with elevated (higher than normal) phenylalanine levels are high risk for having babies with significant birth disorders, such as microencephaly (smaller than normal head size), and congenital heart disease (abnormal heart structure and function), stunted growth, mental impairment, and psychomotor (coordination) difficulties.
health.enotes.com /genetic-disorders-encyclopedia/phenylketonuria   (2770 words)

  
 Phenylalanine at opensource encyclopedia   (Site not responding. Last check: 2007-10-05)
The amino acid Phenylalanine exists in two forms, the D- and L- forms.
The genetic disorder phenylketonuria is an inability to metabolize phenylalanine.
Phenylalanine is part of the composition of aspartame, a common sweetner found in prepared foods (particularly soft drinks).
www.wiki.tatet.com /Phenylalanine.html   (158 words)

  
 Holistic Health Encyclopedia - L   (Site not responding. Last check: 2007-10-05)
These people will need phenylalanine to help with their depression.
Besides producing norepinephrine, dopamine, epinephrine, adrenaline & thyroid, phenylalanine is also a constituent of important brain neuropeptides, somatostatin, vasopressin, melanotropin, ACTH, substance P, encephalin, vasoactive intestinal peptide, angiotensin II, & cholecystokinins.
Because of its cholecystokinin effect, PA can have appetite suppressing benefits.
www.findhealer.com /glossary/L.php3   (6915 words)

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