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Type of α-amino acid
Phenylalanine (symbol Phe or F) is an α-amino acid with the formula C 9H 11NO 2. It is one of the four aromatic amino acids and the 21 proteinogenic amino
Phenylalanine
Amino acid metabolic disorder
of metabolism that results in decreased metabolism of the amino acid phenylalanine. Untreated PKU can lead to intellectual disability, seizures, behavioral
Phenylketonuria
Mammalian protein found in Homo sapiens
Phenylalanine hydroxylase (PAH) (EC 1.14.16.1) is an enzyme that catalyzes the hydroxylation of the aromatic side-chain of phenylalanine to generate tyrosine
Phenylalanine_hydroxylase
Chemical compound
D-Phenylalanine (DPA, D-Phe), sold under the brand names Deprenon, Sabiben, and Sabiden, is an enantiomer of phenylalanine which is described as an antidepressant
D-Phenylalanine
Chemical compound
Azidophenylalanine (4-azido-L-phenylalanine) is an unnatural amino acid derivative of L-phenylalanine, featuring an azide group at the para position of
Azidophenylalanine
Class of enzymes
enzyme phenylalanine ammonia lyase (EC 4.3.1.24) catalyzes the conversion of L-phenylalanine to ammonia and trans-cinnamic acid.: L-phenylalanine = trans-cinnamate
Phenylalanine_ammonia-lyase
Chemical data page
200-568-1 (phenylalanine) ^a CID 994 from PubChem (phenylalanine) ^a CID 71567 from PubChem (D-phenylalanine) ^a CID 6140 from PubChem (L-phenylalanine)
Phenylalanine_(data_page)
Amino acid
classified as a hydrophobic amino acid, it is more hydrophilic than phenylalanine. It is encoded by the codons UAC and UAU in messenger RNA. The one-letter
Tyrosine
Artificial non-saccharide sweetener
times sweeter than sucrose, and is a methyl ester of the aspartic acid/phenylalanine dipeptide with brand names NutraSweet, Equal, and Canderel. Discovered
Aspartame
In enzymology, phenylalanine dehydrogenase (EC 1.4.1.20) is an enzyme that catalyzes the chemical reaction phenylalanine + NAD+ H2O H+ H2O H+ phenylpyruvic
Phenylalanine_dehydrogenase
Phenylalanine(histidine) transaminase (EC 2.6.1.58) is an enzyme that catalyzes the chemical reaction phenylalanine + pyruvic acid phenylpyruvic
Phenylalanine(histidine) transaminase
Phenylalanine(histidine)_transaminase
Phenylalanine N-acetyltransferase (EC 2.3.1.53) is an enzyme that catalyzes the chemical reaction phenylalanine + acetyl-CoA N-acetyl-L-phenylalanine
Phenylalanine N-acetyltransferase
Phenylalanine_N-acetyltransferase
The enzyme phenylalanine decarboxylase (EC 4.1.1.53) catalyzes the chemical reaction L-phenylalanine ⇌ {\displaystyle \rightleftharpoons } phenethylamine
Phenylalanine_decarboxylase
Chemical compound
disease or in the rare cases of patients with AADC enzyme deficiency. l-Phenylalanine, l-tyrosine, and l-DOPA are all precursors to the biological pigment
L-DOPA
Chemical compound
metabolism of the amino acid phenylalanine. The aromatic side chain of phenylalanine is hydroxylated by the enzyme phenylalanine hydroxylase to form tyrosine
4-Hydroxyphenylpyruvic_acid
Medical condition
a rare metabolic disorder that increases the blood levels of phenylalanine. Phenylalanine is an amino acid obtained normally through the diet, but can
Tetrahydrobiopterin deficiency
Tetrahydrobiopterin_deficiency
Monoamine metabolism inhibitor
phenethylamine and amphetamine derivative. It is the α-methylated analogue of phenylalanine, the precursor of the catecholamine neurotransmitters, and the amino
Α-Methylphenylalanine
Domesticated species of canid
ten: arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Like cats, dogs require arginine
Dog
Class of chemical compounds
fight-or-flight response. Tyrosine is created from phenylalanine by hydroxylation by the enzyme phenylalanine hydroxylase. Tyrosine is also ingested directly
Catecholamine
Amino acid having an aromatic ring
includes an aromatic ring. Among the 20 standard amino acids, histidine, phenylalanine, tryptophan, tyrosine, are classified as aromatic. Aromatic amino acids
Aromatic_amino_acid
Set of biochemical processes
the concentrations of the repressor protein and corepressor level. Phenylalanine, tyrosine, and tryptophan, the aromatic amino acids, arise from chorismate
Amino_acid_synthesis
Chemical compound
cytotoxicity in both dividing and non-dividing tumor cells. 4-Nitro-L-phenylalanine (1) was converted to its phthalimide by heating with phthalic anhydride
Melphalan
Medical condition
concentrations of the amino acid phenylalanine in the blood. Phenylketonuria (PKU) can result in severe hyperphenylalaninemia. Phenylalanine concentrations are routinely
Hyperphenylalaninemia
Class of enzymes
Phenylalanine N-monooxygenase (EC 1.14.14.40, phenylalanine N-hydroxylase, CYP79A2) is an enzyme with systematic name L-phenylalanine,NADPH:oxygen oxidoreductase
Phenylalanine_N-monooxygenase
Enzyme found in humans
Phenylalanine–tRNA ligase, mitochondrial, also called Phenylalanyl-tRNA synthetase 2 (FARS2), is an enzyme that in humans is encoded by the FARS2 gene
Phenylalanine–tRNA ligase, mitochondrial
Phenylalanine–tRNA_ligase,_mitochondrial
Amino acids required in diet since they can not be synthesized in body
humans cannot synthesize are valine, isoleucine, leucine, methionine, phenylalanine, tryptophan, threonine, histidine, and lysine. Six other amino acids
Essential_amino_acid
Chemical compound
amino acid hydroxylase enzymes, used in the metabolism of amino acid phenylalanine and in the biosynthesis of the neurotransmitters serotonin (5-hydroxytryptamine
Tetrahydrobiopterin
Phenylalanine/tyrosine ammonia-lyase (EC 4.3.1.25, PTAL, bifunctional PAL) is an enzyme with systematic name L-phenylalanine(or L-tyrosine):trans-cinnamate(or
Phenylalanine/tyrosine ammonia-lyase
Phenylalanine/tyrosine_ammonia-lyase
Synthetic dopamine prodrug
DA-Phen, also known as dopamine–phenylalanine conjugate, is a synthetic dopamine prodrug which is under preclinical evaluation. Dopamine itself is hydrophilic
DA-Phen
Phenylalanine 2-monooxygenase (EC 1.13.12.9) is an enzyme that catalyzes the chemical reaction phenylalanine O2 H2O benzeneacetamide + CO2 The
Phenylalanine_2-monooxygenase
Enzyme
91) is an enzyme that catalyzes the chemical reaction L-arogenate → L phenylalanine + H2O + CO2 Certain forms of the protein have the potential to catalyze
Arogenate_dehydratase
The enzyme phenylalanine racemase (EC 5.1.1.11, phenylalanine racemase, phenylalanine racemase (adenosine triphosphate-hydrolysing), gramicidin S synthetase
Phenylalanine racemase (ATP-hydrolysing)
Phenylalanine_racemase_(ATP-hydrolysing)
Class of enzymes
aminoexotripeptidase, lymphopeptidase, imidoendopeptidase, peptidase B, alanine-phenylalanine-proline arylamidase, peptidase T) is an enzyme. This enzyme catalyses
Tripeptide_aminopeptidase
Protein family
a family of aromatic amino acid hydroxylase enzymes which includes phenylalanine 4-hydroxylase (EC 1.14.16.1), tyrosine 3-hydroxylase (EC 1.14.16.2)
Biopterin-dependent aromatic amino acid hydroxylase
Biopterin-dependent_aromatic_amino_acid_hydroxylase
deaminate the amino acid phenylalanine into the products ammonia and phenylpyruvic acid. The test is performed by adding phenylalanine to the growth medium
Diagnostic_microbiology
Species of plant
UFP-101 Others Enkephalinase inhibitors: Amastatin BL-2401 Candoxatril D-Phenylalanine Dexecadotril (retorphan) Ecadotril (sinorphan) Kelatorphan Racecadotril
Mitragyna_speciosa
Protein domain
In enzymology, a phenylalanine–tRNA ligase (EC 6.1.1.20) is an enzyme that catalyzes the chemical reaction ATP + L-phenylalanine + tRNAPhe ⇌ {\displaystyle
Phenylalanine–tRNA_ligase
Any organic aromatic compound with a structure based on a phenylpropane skeleton
organic compounds that are biosynthesized by plants from the amino acids phenylalanine and tyrosine in the shikimic acid pathway. Their name is derived from
Phenylpropanoid
Psychoactive substance found in plants in the family Apocynaceae
UFP-101 Others Enkephalinase inhibitors: Amastatin BL-2401 Candoxatril D-Phenylalanine Dexecadotril (retorphan) Ecadotril (sinorphan) Kelatorphan Racecadotril
Ibogaine
Index of chemical compounds with the same molecular formula
closely related to isosafrole. Parapropamol Phenylalanine D-Phenylalanine "N-(1,3-benzodioxol-5-ylmethyl)-N-methylamine". This set index
C9H11NO2
Enzyme found in humans
Phenylalanine–tRNA ligase alpha subunit, also called phenylalanyl-tRNA synthetase alpha chain, is an enzyme that in humans is encoded by the FARSA gene
Phenylalanine–tRNA ligase alpha subunit
Phenylalanine–tRNA_ligase_alpha_subunit
Chemical compound
oxidative deamination of phenylalanine. When the activity of the enzyme phenylalanine hydroxylase is reduced, the amino acid phenylalanine accumulates and gets
Phenylpyruvic_acid
Chemical compound
N-Formylmethionyl-leucyl-phenylalanine (fMLF, fMLP or N-formyl-met-leu-phe) is an N-formylated tripeptide and sometimes simply referred to as chemotactic
N-Formylmethionine-leucyl-phenylalanine
N-Formylmethionine-leucyl-phenylalanine
Chemical compound
exercise intervention. In mammals it is created from (S)-lactate and L-phenylalanine by the cytosol nonspecific dipeptidase (CNDP2) protein. It is classified
Lac-Phe
are derived from the amino acids phenylalanine and tyrosine. Phenylalanine ammonia-lyase (PAL, a.k.a. phenylalanine/tyrosine ammonia-lyase) is an enzyme
Phenylpropanoids_metabolism
from O2. The systematic name of this enzyme class is 3,4-dihydroxy-L-phenylalanine:oxygen 4,5-oxidoreductase (recyclizing). It participates in tyrosine
Stizolobate_synthase
Chemical compound
phenylketonuria (PKU). It is a phenylalanine (Phe)‑metabolizing enzyme. Chemically, it is a pegylated derivative of the enzyme phenylalanine ammonia-lyase that metabolizes
Pegvaliase
Medical condition
involves a diet with a low phenylalanine content, and sapropterin to help normalize phenylalanine levels. Since phenylalanine levels in this disease have
Pterin-4 alpha-carbinolamine dehydratase deficiency
Pterin-4_alpha-carbinolamine_dehydratase_deficiency
Chemical compound
Cinnamaldehyde is biosynthesized from phenylalanine. Deamination of L-phenylalanine into cinnamic acid is catalyzed by phenylalanine ammonia lyase (PAL). PAL catalyzes
Cinnamaldehyde
Medication
medication used for the treatment of hyperphenylalaninemia. Sepiapterin is a phenylalanine hydroxylase activator. It is also metabolite that is naturally synthesized
Sepiapterin
Chemical compound
with a strong honey-like odor. Endogenously, it is a catabolite of phenylalanine. As a commercial chemical, because it can be used in the illicit production
Phenylacetic_acid
Influence of a single gene on multiple phenotypic traits
12 that encodes the enzyme phenylalanine hydroxylase. This mutation leads to the accumulation of the amino acid phenylalanine in the body, affecting multiple
Pleiotropy
Enzyme found in humans
tryptophan depletion, it has been observed activating both tryptophan and phenylalanine. GRCh38: Ensembl release 89: ENSG00000140105 – Ensembl, May 2017 GRCm38:
Tryptophan–tRNA ligase, cytoplasmic
Tryptophan–tRNA_ligase,_cytoplasmic
Chemical compound
Arogenic acid is an intermediate in the biosynthesis of phenylalanine and tyrosine. At physiological pH it exists as its conjugate base arogenate as the
Arogenic_acid
Chemical compound
aromatic amino acids (phenylalanine, tyrosine, and tryptophan). This pathway is not found in animals; therefore, phenylalanine and tryptophan are essential
Shikimic_acid
Chemical compound
NOAEL for humans is 500 mg/kg bw in EU. Ingested advantame can form phenylalanine, but normal use of advantame is not significant to those with phenylketonuria
Advantame
characterised from Escherichia coli interconverts phenylalanine and phenylpyruvic acid: phenylalanine + α-ketoglutaric acid phenylpyruvic
Aromatic-amino-acid transaminase
Aromatic-amino-acid_transaminase
Dopastin • Fusaric acid • Nepicastat • Phenopicolinic acid • Tropolone L-Phenylalanine → L-tyrosine → L-DOPA (levodopa) Ferrous iron (Fe2+) • Tetrahydrobiopterin •
List_of_dopaminergic_drugs
from O2. The systematic name of this enzyme class is 3,4-dihydroxy-L-phenylalanine:oxygen 4,5-oxidoreductase (recyclizing). It participates in tyrosine
Stizolobinate_synthase
Organic compounds containing amine and carboxylic groups
phenylalanine) are precursors of the catecholamine neurotransmitters dopamine, epinephrine and norepinephrine and various trace amines. Phenylalanine
Amino_acid
Overview of and topical guide to biochemistry
individual is missing an enzyme called phenylalanine hydroxylase. Absence of this enzyme allows the buildup of phenylalanine, which can lead to intellectual
Outline_of_biochemistry
Model of tRNA's molecular structure
if the amino acid that attach to the end is phenylalanine, the reaction will be catalyzed by phenylalanine-tRNA synthase to produce tRNAphe. The other
Cloverleaf_model_of_tRNA
Chemical compound
is an intermediate in the biosynthesis of the aromatic amino acids phenylalanine and tyrosine, as well as of a large number of secondary metabolites
Prephenic_acid
Chemical in plants
aromatic amino acids L-phenylalanine or L-tyrosine, both products of the Shikimate pathway. When starting from L-phenylalanine, first the amino acid is
Apigenin
Psychoactive stimulant and norepinephrine releasing agent
(MRA) of the phenethylamine family. It is related to the amino acid phenylalanine and to the phenethylamine psychostimulants β-phenethylamine (phenylethylamine)
Phenylalaninol
Human gene
Tetrahydrobiopterin works with an enzyme called phenylalanine hydroxylase to process a substance called phenylalanine. Phenylalanine is an amino acid (a building block
QDPR
Chemical compound
Its biosynthesis involves the action of the enzyme phenylalanine ammonia-lyase (PAL) on phenylalanine. It is obtained from oil of cinnamon, or from balsams
Cinnamic_acid
Psychoactive drug, often called ecstasy
Oxilofrine PBA PCA PCMA PHA Pentorex Phenatine Phenpromethamine Phentermine Phenylalanine Phenylephrine Phenylpropanolamine Pholedrine PIA PMA PMEA PMMA PPAP
MDMA
Digestive enzyme
with some differences including a preference for cutting leucine over phenylalanine bonds. Chymotrypsin preferentially cleaves peptide amide bonds where
Chymotrypsin
Amino acid that is incorporated biosynthetically into proteins during translation
amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine (i.e. H, I, L, K, M, F, T, W, V)
Proteinogenic_amino_acid
Monoamine that acts as a neurotransmitter or neuromodulator
serotonin. All monoamines are derived from aromatic amino acids like phenylalanine, tyrosine, and tryptophan by the action of aromatic amino acid decarboxylase
Monoamine_neurotransmitter
Chemical compound
not found in the root. (R)-Prunasin begins with the common amino acid phenylalanine, which in plants is produced via the Shikimate pathway in primary metabolism
Prunasin
Central nervous system stimulant
Oxilofrine PBA PCA PCMA PHA Pentorex Phenatine Phenpromethamine Phentermine Phenylalanine Phenylephrine Phenylpropanolamine Pholedrine PIA PMA PMEA PMMA PPAP
Caffeine
Artificial sweetener
intakes from foods are well below ADI levels. Ingested neotame can form phenylalanine, but in normal use of neotame, this is not significant to those with
Neotame
and mesenchyme. Dispase II is specific for the cleavage of leucine-phenylalanine bonds. Dispase is often used to digest adhering primary cells in culture
Dispase
Class of enzymes
enzyme characterised from guinea pig brain are L-DOPA (3,4-dihydroxy-L-phenylalanine) and α-ketoglutaric acid. Its products are 3,4-dihydroxyphenylpyruvic
Dihydroxyphenylalanine transaminase
Dihydroxyphenylalanine_transaminase
Medication mainly used for depression and smoking cessation
Ibopamine Isoprenaline Isoetarine L-DOPA (levodopa) L-DOPS (droxidopa) L-Phenylalanine L-Tyrosine m-Tyramine Metanephrine Metaraminol Metaterol Metirosine
Bupropion
Atypical antipsychotic medication
Ethylnorepinephrine Ibopamine Indanidine Isometheptene L-DOPA (levodopa) L-Phenylalanine L-Tyrosine Melevodopa Metaraminol Methoxamine Methyldopa Midodrine Naphazoline
Quetiapine
Medical condition
of dopamine and serotonin and for maintenance of adequate levels of phenylalanine. As of 2020, autosomal recessive GTP cyclohydrolase I deficiency was
Autosomal recessive GTP cyclohydrolase I deficiency
Autosomal_recessive_GTP_cyclohydrolase_I_deficiency
Non-crystallizable yellow nitrated substance derived from proteins
is specific for aromatic compounds such as tyrosine, tryptophan and phenylalanine. Xanthoproteinic acids are also formed when nitric acid contacts the
Xanthoproteic_acid
Human enzyme
sympathetic neurons and the adrenal medulla. Tyrosine hydroxylase, phenylalanine hydroxylase and tryptophan hydroxylase together make up the family of
Tyrosine_hydroxylase
Enzyme
specificity of pepsin is broad, but some amino acids like tyrosine, phenylalanine and tryptophan increase the probability of cleavage. Pepsin's zymogen
Pepsin
American chemist (1930–2019)
discovered aspartame while working on an anti-ulcer drug. Aspartic acid and phenylalanine had been synthesized by Dr. Mazur, and Schlatter then heated the result
James_M._Schlatter
Class of naturally occurring chemical compounds
and cathinone as pseudoalkaloids. Those originate from the amino acid phenylalanine, but acquire their nitrogen atom not from the amino acid but through
Alkaloid
Chemical compound
acid similar to phenylalanine, but containing hydroxyl, methoxy, and carboxyl substituents on the aromatic ring. Like phenylalanine, it contains a single
Caramboxin
Class of enzymes
tumorigenesis. Phenylalanine is found to function as a competitive inhibitor of pyruvate kinase in the brain. Although the degree of phenylalanine inhibitory
Pyruvate_kinase
Anthocyanidin pigment in flowering plant petals and fruits
alpha-Ketoglutaric acid to form L-phenylalanine (figure 1). L-phenylalanine then undergoes an elimination of the primary amine with Phenylalanine ammonia-lyase (PAL)
Cyanidin
Tropane alkaloid and stimulant drug
Oxilofrine PBA PCA PCMA PHA Pentorex Phenatine Phenpromethamine Phentermine Phenylalanine Phenylephrine Phenylpropanolamine Pholedrine PIA PMA PMEA PMMA PPAP
Cocaine
Pharmaceutical drug classification
ATC code V06 General nutrients is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed
ATC_code_V06
Blue-green algal genus used in food
all protein-rich foods, spirulina contains the essential amino acid phenylalanine (2.6–4.1 g/100 g), which should be avoided by people who have phenylketonuria
Spirulina (dietary supplement)
Spirulina_(dietary_supplement)
Orally active, lipolytic fragment of human growth hormone
It consists of HGH residues 176–191, with a tyrosine in place of the phenylalanine at the N-terminal end. Initial human trials showed that it retains the
AOD9604
Topics referred to by the same term
DLPA may refer to: DL-Phenylalanine, a nutritional supplement used for its purported analgesic and antidepressant properties. Digital Public Library of
DLPA
Drug class
Examples include racecadotril, ubenimex (bestatin), RB-101, and D-phenylalanine, as well as the endogenous opioid peptides opiorphin and spinorphin
Enkephalinase_inhibitor
Topics referred to by the same term
Type Theory, an extension of Typed Set Theory; see New Foundations Phenylalanine, an amino acid with the codon TTT Tilt table test, a medical test for
TTT
Species of tree
g Leucine 0.276 g Lysine 0.243 g Methionine 0.108 g Cystine 0.117 g Phenylalanine 0.203 g Tyrosine 0.134 g Valine 0.235 g Arginine 0.459 g Histidine 0
Castanea_mollissima
Chemical reaction which adds an –OH group to an organic compound
are formed by hydroxylation of phenylalanine and tyrosine, a process in which the hydroxylation converts phenylalanine residues into tyrosine residues
Hydroxylation
Chemical compound
Oxilofrine PBA PCA PCMA PHA Pentorex Phenatine Phenpromethamine Phentermine Phenylalanine Phenylephrine Phenylpropanolamine Pholedrine PIA PMA PMEA PMMA PPAP
Ampyzine
Method of evaluating a protein's quality
Leucine 55 Lysine 51 Methionine + Cysteine (sum; sulfur amino acids) 25 Phenylalanine + Tyrosine (sum; aromatic amino acids) 47 Threonine 27 Tryptophan 7
Protein digestibility corrected amino acid score
Protein_digestibility_corrected_amino_acid_score
Medication
Ethylnorepinephrine Ibopamine Indanidine Isometheptene L-DOPA (levodopa) L-Phenylalanine L-Tyrosine Melevodopa Metaraminol Methoxamine Methyldopa Midodrine Naphazoline
Salbutamol/budesonide
Enzyme
breakdown of the amino acids tyrosine and phenylalanine. HGD appears in the metabolic pathway of tyrosine and phenylalanine degradation once the molecule homogentisate
Homogentisate_1,2-dioxygenase
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