LOINC
Version 2.73

2768-0Phenylalanine/Tyrosine [Mass Ratio] in Serum or PlasmaActive

Part Descriptions

LP15792-2   Phenylalanine
Phenylalanine is an essential alpha-amino acid. It exists in two forms, a D and an L form, which are enantiomers (mirror-image molecules) of each other. It has a benzyl side chain and its name comes from its chemical structures that consists of a phenyl group substituted for one of the hydrogens in the side chain of alanine. Because of its phenyl group, phenylalanine is an aromatic compound that at room temperature exists as a white, powdery solid. L -phenylalanine (LPA) is an electrically-neutral amino acid and its enantiomer, D -phenylalanine (DPA), can be synthesized artificially. L -phenylalanine can also be converted into L -tyrosine, another one of the twenty protein-forming amino acids. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Phenylalanine (Wikipedia)

LP32175-9   Tyrosine
Tyrosine (from the Greek tyros, meaning cheese, as it was first discovered in cheese[ citationneeded ]), 4-hydroxyphenylalanine, or 2-amino-3(4-hydroxyphenyl)-propanoic acid, is one of the 20 amino acids that are used by cells to synthesize proteins. It has a phenol side chain with a hydroxyl group. Upon the location of the hydroxyl group, there are three structural isomers of Tyr, namely para-Tyr (p-Tyr), meta-Tyr (m-Tyr) and ortho-Tyr (o-Tyr). Enzymatically, only the first isomer (p-Tyr) is produced from L-Phe by the Phe-hydroxylase enzyme. The other two isoforms, m-Tyr and o-Tyr can be produced as a consequence of free radical attack on Phe in states with increased oxidative stress. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Tyrosine (Wikipedia)

LP32175-9   Tyrosine
A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin. Source: National Library of Medicine, MeSH 2006

Fully-Specified Name

Component
Phenylalanine/Tyrosine
Property
MRto
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
Phe/Tyr SerPl
Display Name
Phenylalanine/Tyrosine [Mass ratio]
Consumer Name Alpha
Phenylalanine/Tyrosine, Blood

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.42
Order vs. Observation
Observation

Language Variants Get Info

zh-CNChinese (China)
苯丙氨酸/酪氨酸:质量比率:时间点:血清/血浆:定量型:
nl-NLDutch (Netherlands)
fenylalanine/tyrosine:massaverhouding:moment:serum of plasma:kwantitatief:
et-EEEstonian (Estonia)
Fenüülalaniin/türosiin:MRto:Pt:S/P:Qn:
fr-BEFrench (Belgium)
Phénylalanine/Tyrosine:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-CAFrench (Canada)
Phénylalanine/Tyrosine:Ratio de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (France)
Phénylalanine/tyrosine:Masse ratio:Ponctuel:Sérum/Plasma:Numérique:
de-DEGerman (Germany)
Phenylalanin/Tyrosin:Massenverhältnis:Zeitpunkt:Serum oder Plasma:Quantitativ:
it-ITItalian (Italy)
Fenilalanina/Tirosina:MRto:Pt:Siero/Plasma:Qn:
ko-KRKorean (Korea, Republic of)
페닐알라닌/티로신:질량농도비:검사시점:혈청/혈장:정량:
pl-PLPolish (Poland)
Fenyloalanina/Tyrozyna:Współczynnik masy:Punkt w czasie:Surowica lub osocze:ilościowy:
pt-BRPortuguese (Brazil)
Fenilalanina/Tirosina:MCrto:Pt:Sor/Plas:Qn:
ru-RURussian (Russian Federation)
Фенилаланин/Тирозин:МассОтн:ТчкВрм:Сыв/Плаз:Колич:
es-ARSpanish (Argentina)
fenilalanina/tirosina:relación de concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-MXSpanish (Mexico)
Fenilalanina / Tirosina:Relación de masa:Punto temporal:Suero o Plasma:Cuantitativo:
es-ESSpanish (Spain)
Fenilalanina/Tirosina:Relacion de Masa:Punto temporal:Suero o Plasma:Qn:
tr-TRTurkish (Turkey)
Fenilalanin/Tirozin:KütlOr:Zmlı:Ser/Plaz:Kant:

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