合成与降解(Synthesis and Degradation)
催化生物体内一氧化氮(NO)生成的酶。分神经型一氧化氮合成的酶(nNOS or NOS-1)、诱导型一氧化氮合成的酶(iNOS or NOS-2)、内皮型一氧化氮合成的酶(eNOS or NOS-3)。
背景资料
Nitric oxide (NO) is an inorganic, gaseous free radical that carries a variety of messages between cells. Vasorelaxation, neurotransmission and cytotoxicity can all be potentiated through cellular response to NO. NO production is mediated by members of the nitric oxide synthase (NOS) family. NOS catalyzes the oxidization of L-arginine to produce L-citrulline and NO. Two constitutive isoforms, brain or neuronal NOS (b or nNOS, type I) & endothelial cell NOS (eNOS, type III), and one inducible isoform (iNOS, type II), have been cloned. All NOS isoforms contain calmodulin, nicotinamide adenine dinucleotide phosphate (NADPH), flavin adenine dinucleotide (FAD), and flavin mononucleotide (FMN) binding domains. Nitric oxide synthase is expressed in liver, macrophages, hepatocytes, synoviocytes, stimulated glial cells and smooth muscle cells. Cytokines such as interferon-gamma (IFN), tumor necrosis factor (TNF), interleukin-1 and -2, and lipopolysaccarides (LPS) cause an increase in iNOS mRNA, protein, and activity levels. Protein kinase C-stimulating agents exhibit the same effect on iNOS activity. After cytokine induction, iNOS exhibits a delayed activity response which is then followed by a significant increase in NO production over a long period of time. Human iNOS is regulated by calcium/calmodulin (in contrast with mouse NOS2).
产品应用
应用
已检合格种属
预测种属
推荐稀释比例
WB
Mouse, Rat
Human
1:1000-5000
IHC-P
Human, Mouse, Rat
1:100-500
IHC-F
Human, Mouse, Rat
1:100-500
IF
Human, Mouse, Rat
1:100-500
ELISA
Human, Mouse, Rat
1:5000-10000
交叉反应
交叉反应: Human, Mouse, Rat
相关产品
暂无相关产品
靶标
基因名
NOS2
蛋白名
Nitric oxide synthase, inducible
亚基
Homodimer. Binds SLC9A3R1.
亚细胞定位
Cytosol
组织特异性
Expressed in the liver, retina, bone cells and airway epithelial cells of the lung. Not expressed in the platelets.
相似性
Belongs to the NOS family.
Contains 1 FAD-binding FR-type domain.
Contains 1 flavodoxin-like domain.
功能
Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In macrophages, NO mediates tumoricidal and bactericidal actions. Also has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such COX2.