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torsdag 11 juli 2019

Tyrosiinihydroksylaasigeeni

  1.  ( on mahdollista nostaa biopteriinin pitoisuutta supplementtina:Tämä  artikkeli sinänsä koskee malariatutkimuksia.  Tietysti foolihapon käyttö tukee biopteriinin  metaboliaa ihmisellä. Tässä on hiirikoetuloksia,  miten biopteriinin saa myös kudoksissa nousemaan. Dopamiinisynteesi vaatii biopteriinin muodostusta kehossa.   "The continuous infusion of sepiapterin (a BH4 precursor) and citrulline (an arginine precursor) raised the concentrations of BH4 and arginine in both blood and tissue compartments. The restoration of systemic BH4 and arginine availability in infected mice produced only a minor improvement in whole blood nitrite concentrations, a biomarker of NO synthesis, and failed to prevent the onset of severe disease symptoms. However, sepiapterin and citrulline infusion reduced the ratio of phenylalanine to tyrosine in plasma, aortic tissue, and brain tissue. In summary, BH4 depletion in P. berghei infection may compromise both nitric oxide synthesis and phenylalanine metabolism; however, these findings require further investigation in human patients with severe malaria.")
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  3.  https://www.ncbi.nlm.nih.gov/pubmed/27641435
  4.  TH  (11p15.5)
    Also known as
    TYH; DYT14; DYT5b
    Summary
    The protein encoded by this gene is involved in the conversion of tyrosine to dopamine. It is the rate-limiting enzyme in the synthesis of catecholamines, hence plays a key role in the physiology of adrenergic neurons. Mutations in this gene have been associated with autosomal recessive Segawa syndrome. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]
    Expression
    Restricted expression toward adrenal (RPKM 42.8) See more
    Preferred Names
    tyrosine 3-monooxygenase
    Names
    dystonia 14
    tyrosine 3-hydroxylase
    NM_000360.4NP_000351.2  tyrosine 3-monooxygenase isoform b
    See identical proteins and their annotated locations for NP_000351.2
    Status: REVIEWED
    Description
    Transcript Variant: This variant (2) uses a different donor splice site at the first coding exon and is missing an adjacent in-frame coding exon compared to transcript variant 1, resulting in an isoform (b) missing a 31 aa segment compared to isoform a.
    Source sequence(s)
    Conserved Domains (4) summary
    TIGR01269
    Location:38494
    Tyr_3_monoox; tyrosine 3-monooxygenase, tetrameric
    cd04930
    Location:38159
    ACT_TH; ACT domain of the nonheme iron-dependent aromatic amino acid hydroxylase, tyrosine hydroxylases (TH)
    pfam00351
    Location:164494
    Biopterin_H; Biopterin-dependent aromatic amino acid hydroxylase
    pfam12549
    Location:226
    TOH_N; Tyrosine hydroxylase N terminal

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