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Nicotinic stimuli appear to regulate expression of the epinephrine-synthesizing gene PNMT through a previously uncharacterized regulatory element.
PNMT gene is located within human chromosome 17q12 amplicon, including PPP1R1B, STARD3, TCAP, PNMT, ERBB2, MGC14832 and GRB7 genes. PPP1R1B ~ ERBB2 ~ GRB7 locus is amplified in human gastric cancer and breast cancer.
PNMT underexpression is associated with malignant pheochromocytoma and paraganglioma.
initial velocity studies on human PNMT in the absence and presence of product and dead end inhibitors.
The 2-SNP AA haplotype in the PNMT promoter is associated with decreased risk of essential hypertension in Han Chinese.
PNMT G-390A polymorphism is possibly associated with essential hypertension risk in male Chinese Han population.
In Caucasians, phenylethanolamine N-methyltransferase single nucleotide polymorphisms are associated with the development of acute kidney injury, disease severity, and in-hospital mortality.
PNMT variants in cis may interact with nuclear factors in trans to govern adrenergic activity.
Human PNMT has been crystallized in complex with an inhibitor and the cofactor product S-adenosyl-L-homocysteine and diffraction data measured from a cryocooled crystal extend to a resolution of 2.3 A.
pharmacologic and biochemical evidence of beta-carboline 2N-methyltransferase activity
Association between the phenylethanolamine N-methyltransferase gene and multiple sclerosis.
homozygosity/heterozygosity of the phenylethanolamine N-methyltransferase gene polymorphism was highly predictive of significant weight loss with sibutramine during the first 3 months of obesity treatment
genetic variants of PNMT may play a role in the development of essential hypertension.
Presence of local PNMT transcription in human heart after transplantation.
disulfide-linked dimers are as active as the monomeric enzyme indicating that the crystal structure of the protein is a valid target for inhibitor design.
Results suggest that PNMT catalyzes transfer of methyl to ligand amines only when "anchor" interactions, such as those identified for the beta-hydroxyls of p-octopamine and cis-AT, are present.
the differences in PNMT expression between normotensives and hypertensives are not determined by the polymorphisms in this gene, but rather by the interplay of gene expression regulators, which may vary among individuals
We examined the correlation between reward dependence (RD) trait, and 5 polymorphisms in genes of norepinephrine pathways. We found that rs3764351 in PNMT was significantly associated with reward dependence trait.
Haplotypes of the phenylethanolamine N-methyltransferase (PNMT), catechol-O-methyltransferase (COMT) have functionally important effects on alcohol-induced cardiovascular symptoms by affecting blood catecholamine levels.
The crystal structures illustrate the adaptability of the PNMT substrate binding site in accepting multi-fused ring systems, such as substituted norbornene, as well as noradrenochrome, the oxidation product of noradrenaline.
the reaction takes place via an SN2 mechanism with methyl transfer being rate-limiting
The product of this gene catalyzes the last step of the catecholamine biosynthesis pathway, which methylates norepinephrine to form epinephrine (adrenaline). The enzyme also has beta-carboline 2N-methyltransferase activity. This gene is thought to play a key step in regulating epinephrine production. Alternatively spliced transcript variants have been found for this gene.
, noradrenaline N-methyltransferase
, phenylethanolamine N-methylase