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Tyrosine (Tyr) Unit Converter
Tyrosine (Tyr) is a non-essential amino acid synthesized from phenylalanine. It is a critical precursor for the synthesis of catecholamines (dopamine, norepinephrine, epinephrine), thyroid hormones, and melanin.
Monitoring plasma tyrosine levels is essential for diagnosing and managing **Tyrosinemia** (Types I, II, and III) and for monitoring patients with Phenylketonuria (PKU). This converter facilitates switching between the standard SI molar units (μmol/L) and mass units (mg/dL).
SI Units / Standard
RecommendedMicromoles per liter (Standard for amino acid analysis).
Mass Units
Clinical Context
Reference Ranges (Plasma/Serum):
• Adults: 30 – 100 μmol/L (0.5 – 1.8 mg/dL).
• Newborns: 30 – 150 μmol/L.
Clinical Significance:
• Elevated: Tyrosinemia, Transient Tyrosinemia of the Newborn (TTN), severe liver disease.
• Reduced: Phenylketonuria (PKU), hypothyroidism (rarely).
Conversion Logic:
Molecular Weight of Tyrosine: 181.19 g/mol.
1 mg/dL ≈ 55.19 μmol/L.
1 μmol/L ≈ 0.0181 mg/dL.
Clinical References
How to Use This Converter
Follow these steps to normalize Tyrosine values.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., μmol/L).
Automatic Conversion
The calculator converts between mass units and the SI molar unit using the molecular weight of 181.19 g/mol.
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
In Phenylketonuria (PKU), phenylalanine cannot be converted to tyrosine. Therefore, patients often have low tyrosine levels and may require supplementation.
Yes. 1 microgram per milliliter is numerically identical to 1 milligram per liter.