tyrosine
[ti´ro-sēn]a naturally occurring, nonessential amino acid present in most proteins and synthesized metabolically from phenylalanine. It is a precursor of melanin, catecholamines, and thyroid hormones.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
ty·ro·sine (Tyr, Y),
(tī'rō-sēn, -sin),2-Amino-3-(4-hydroxyphenyl)propionic acid; 3-(4-hydroxyphenyl)alanine; the l-isomer is an α-amino acid present in most proteins.
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tyrosine
(tī′rə-sēn′)n.
A nonessential amino acid, C9H11NO3, that is produced in the body from phenylalanine and is a precursor of melanin and of several neurotransmitters and hormones, such as epinephrine and thyroxine.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
ty·ro·sine
(Tyr, Y) (tī'rō-sēn)An α-amino acid present in most proteins.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
tyrosine
The AMINO ACID 4-hydroxyphenylalanine. This is one of the 20 amino acids that are incorporated into protein.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
)
Fig. 308 Tyrosine . Molecular structure.
tyrosine (Y, Tyr)
one of the 20 AMINO ACIDS common in PROTEINS. It has a polar ‘R’ group structure and is soluble in water. See Fig. 308 . The ISOELECTRIC POINT of tyrosine is 5.7.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
Tyrosine
A protein building block found in a wide variety of foods that is used by the body to make melanin.
Mentioned in: Albinism
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
ty·ro·sine
(Tyr) (tī'rō-sēn)An α-amino acid present in most proteins.
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