112 products were found matching "K13240"!

(6R)-5,6,7,8-tetrahydro-L-Biopterin (hydrochloride) (BH4) is a cofactor that, in the presence of enzyme site iron, binds to phenylalanine hydroxylase, tryptophan or tyrosine hydroxylase, and nitric oxide synthase (NOS), to facilitate the production of aromatic amino acids, neurotransmitters, and nitric oxide (NO),...

Nitric oxide synthase (NOS) catalyzes the oxidation of arginine to nitric oxide (NO) and citrulline. Three distinct isoforms of NOS have been described having nomenclature based on the tissue source from which they were originally cloned. These three isoforms are neuronal/brain NOS (nNOS/bNOS/NOS-I), inducible NOS...

L-NIO is a non-selective inhibitor of all NOS isoforms. The Ki values for nNOS (rat), eNOS (bovine), and iNOS (mouse) are 1.7, 3.9, and 3.9 µM, respectively. L-NIO inhibits endothelial-dependent relaxation induced by acetylcholine in rat aortic rings and hypotensive responses to acetylcholine and bradykinin.Formal...

L-NAME requires hydrolysis of the methyl ester by cellular esterases to become a fully functional inhibitor (L-NNA). L-NNA exhibits some selectivity for inhibition of neuronal and endothelial isoforms. It exhibits Ki values of 15 nM, 39 nM, and 4.4 µM for nNOS (bovine), eNOS (human), and iNOS (mouse), respectively....

L-NMMA is the archetypal competitive NOS inhibitor to which other inhibitors are often compared. It is a relatively non-selective inhibitor of all NOS isoforms. The Ki values for nNOS (rat), eNOS (human), and iNOS (mouse) are approximately 0.18, 0.4, and 6 µM, respectively.Formal Name:...

L-NMMA is a relatively non-selective inhibitor of all NOS isoforms. It is the archetypal NOS inhibitor to which other inhibitors are most often compared. The Ki values for nNOS (rat), eNOS (human), and iNOS (mouse) are approximately 0.18, 0.4, and 6 µM, respectively.Formal Name:...

S-methyl-L-Thiocitrulline is a potent NOS inhibitor with selectivity toward the neuronal isoform compared to eNOS and iNOS. For human enzymes, it exhibits Ki values of 1.2, 11, and 40 nM for nNOS, eNOS, and iNOS, respectively.Formal Name: N5-[imino(methylthio)methyl]-L-ornithine, dihydrochloride. CAS Number:...

NG-amino-L-Arginine inhibits nNOS, iNOS, and eNOS with Ki values of 0.3, 3, and 2.5 µM, respectively. Inhibition is mediated by covalent alteration of the heme prosthetic group leading to inactivation of the enzyme. NG-amino-L-Arginine can be used both in cell culture and in vivo.Formal Name:...

L-NNA is a competitive inhibitor of nitric oxide synthase (NOS) with selectivity for the neuronal and endothelial isoforms of the enzyme. Although L-NAME is much more soluble than L-NNA in aqueous systems, a hydrolysis step is required to "activate" L-NAME, thus adding complexity to an in vivo experiment. L-NNA...

Vinyl-L-NIO is a potent, selective inhibitor of nNOS. The Ki values for inhibition of nNOS, eNOS, and iNOS by vinyl-L-NIO are 100 nM, 12 and 60 µM, respectively, as determined using initial rate measurements. In the presence of NADPH and O2, vinyl-L-NIO irreversibly inactivates nNOS with a kinact of 0.078 min-1 and...

NG,NG-dimethyl-L-arginine (ADMA) is an endogenous inhibitor of nitric oxide synthase (NOS). It is formed from arginine by protein arginine methyltransferases (PRMTs) and degraded by dimethylarginine dimethylaminohydrolases (DDAHs) and alanine-glyoxylate aminotransferase 2 (AGXT2). ADMA levels are increased...

Nomega-Propyl-L-Arginine is a potent and selective inhibitor of neuronal nitric oxide synthase (nNOS). Nomega-Propyl-L-Arginine is a competitive inhibitor of bovine nNOS having a Ki value of 57 nM. The Ki values for eNOS (bovine) and iNOS (murine) are 8.5 and 180 µM, respectively. Nomega-propyl-L-Arginine therefore...