E. coli biotin ligase
(BirA) is highly specific in covalently attaching biotin to the 15 amino
acid AviTag peptide. This recombinant protein was biotinylated in vivo
by AviTag-BirA technology, which method is BriA catalyzes amide linkage
between the biotin and the specific lysine of the AviTag.
The tag type will be
determined during production process. If you have specified tag
type, please tell us and we will develop the specified tag
preferentially.
產(chǎn)品提供形式:
Lyophilized powder Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
復(fù)溶:
We recommend that this vial be briefly centrifuged prior
to opening to bring the contents to the bottom. Please reconstitute
protein in deionized sterile water to a concentration of 0.1-1.0
mg/mL.We recommend to add 5-50% of glycerol (final concentration) and
aliquot for long-term storage at -20℃/-80℃. Our default final
concentration of glycerol is 50%. Customers could use it as reference.
儲(chǔ)存條件:
Store at -20°C/-80°C upon receipt, aliquoting is necessary for
mutiple use. Avoid repeated freeze-thaw cycles.
保質(zhì)期:
The shelf life is related to many factors, storage state,
buffer ingredients, storage temperature and the stability of the protein
itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The
shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期:
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our
proteins are default shipped with normal blue ice packs, if you
request to ship with dry ice, please communicate with us in advance
and extra fees will be charged.
注意事項(xiàng):
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
The secreted form behaves both as a cytokine with immunomodulating properties and an adipokine with anti-diabetic properties, it has no enzymatic activity, partly because of lack of activation by ATP, which has a low level in extracellular space and plasma. Catalyzes the condensation of nicotinamide with 5-phosphoribosyl-1-pyrophosphate to yield nicotinamide mononucleotide, an intermediate in the biosynthesis of NAD. It is the rate limiting component in the mammalian NAD biosynthesis pathway. Plays a role in the modulation of circadian clock function. NAMPT-dependent oscillatory production of NAD regulates oscillation of clock target gene expression by releasing the core clock component: CLOCK-ARNTL/BMAL1 heterodimer from NAD-dependent SIRT1-mediated suppression.
基因功能參考文獻(xiàn):
our study demonstrated that PBEF ameliorates ischemia-induced neuronal death through inhibiting caspase-dependent and independent apoptotic signaling pathways and suppressing mitochondrial damage and dysfunction. Our study provides novel insights into the mechanisms underlying the neuroprotective effect of PBEF, and helps to identify potential targets for ischemic stroke therapy. PMID: 27576732
the NAMPT-mediated NAD(+) biosynthesis pathway is a potential therapeutic target for degenerative motor neuron diseases. PMID: 28854367
observations demonstrate that NAMPT knockdown exerted antiatherogenic effects by promoting cholesterol efflux and macrophage RCT through the PPARalpha- LXRalpha- ABCA1/G1pathway in vitro and in vivo PMID: 27229177
Study found that primary mouse embryonic fibroblast (MEF) cells undergo progressive decline of NAMPT and NAD(+) contents during serial passaging before becoming senescent; further found that constitutive Nampt over-expression increases SIRT1 activity, increases the expression of antioxidant genes, superoxide dismutase 2 and catalase and promotes resistance against oxidative stress. PMID: 29178516
NAMPT-mediated NAD(+) biosynthesis in adipocytes regulates adipose tissue function and multi-organ insulin sensitivity in mice. PMID: 27498863
NAMPT-mediated NAD(+) biosynthesis is essential for vision in mice. PMID: 27681422
NAMPT is involved in key basic cellular functions. PMID: 28333140
role of Nampt in regulating osteoblast differentiation in primary mouse bone marrow-derived mesenchymal stem cells (BM-MSCs); Nampt expression was progressively elevated during BM-MSCs osteogenic differentiation PMID: 28159473
Synthesis and Degradation of Adenosine 5'-Tetraphosphate by Nicotinamide and Nicotinate Phosphoribosyltransferases PMID: 28416276
NAMPT inhibited endothelial progenitor cell senescence through an SIRT1 AS lncRNA/miR-22/SIRT1 pathway PMID: 27569277
results support a novel, important role for Nampt-mediated NAD(+) biosynthesis in long-term depression and in the function of GluN2B-containing NMDARs PMID: 26481044
extracellular NAMPT can be actively released by melanoma cells in vitro. PMID: 26358657
Visfatin plays an important role in glucose metabolism via the calcium mediated AMPK-p38 MAPK pathway. PMID: 26019302
Deacetylation of intracellular NAMPT by the mammalian NAD(+)-dependent deacetylase SIRT1 predisposes the protein to secretion in adipocytes. PMID: 25921090
Report retinal toxicity of NAMPT inhibitors. PMID: 25505128
The Nampt activity of visfatin is involved in chondrocyte and osteoblast activation PMID: 24479481
Visfatin levels increase after aortic valve replacement for aortic stenosis and may play a part in postoperative reverse remodelling. PMID: 24429804
nicotinamide phosphoribosyltransferase increases NAD synthesis in muscle but is not sufficient to promote oxidative metabolism PMID: 25411251
NAMPT is a key novel ARDS therapeutic target and candidate gene with genetic/epigenetic transcriptional regulation in response to excessive mechanical stress. PMID: 24821571
Ischemic Injury Induces Nicotinamide Phosphoribosyltransferase Expression and Secretion from Neurons. PMID: 25005877
Pharmacological inhibition of NAMPT activity mitigates inflammation in atherosclerotic plaques by reducing CXCL1-mediated activities on neutrophils. PMID: 24196571
Oral lipid ingestion is a physiological regulator of systemic visfatin release. Fatty acids differentially regulate visfatin release in vitro. PMID: 24554513
Fndings support NAMPT inhibition via FK-866 as a novel therapeutic agent for acute respiratory distress syndrome via enhanced apoptosis in inflammatory neutrophils. PMID: 24588101
results indicate that JAZF1 might firstly upregulated the expression of PPARalpha and PPARbeta/delta, which in turn activated the transcription of visfatin PMID: 24930994
Specific ablation of Nampt in adult neural stem cells recapitulates their functional defects during aging. PMID: 24811750
miR-34a reduces NAD(+) levels and SIRT1 activity by targeting NAMPT, the rate-limiting enzyme for NAD(+) biosynthesis. PMID: 23834033
forebrain excitatory neurons mainly use intracellular Nampt-mediated NAD(+) biosynthesis to mediate their survival and function. PMID: 24760840
GLP-1 promotes the novel insulin-mimetic adipocytokine visfatin expression. PMID: 23670349
These results suggested that diet-induced obesity could promote murine gastric cancer growth by upregulating the expression of the nampt, sirt1 and c-myc genes. PMID: 23970286
melatonin suppresses visfatin-induced iNOS upregulation in macrophages by inhibiting the STAT3 and NF-kappaB pathways. PMID: 23869429
Rev-erb alpha is a new intracellular regulator of glucagon secretion via AMPK/Nampt/Sirt1 pathway. PMID: 23936124
Osteogenic differentiation correlates with intracellular nicotinamide adenine dinucleotide (NAD) metabolism in which Nampt plays a regulatory role. PMID: 23537654
Nampt inhibition appears as a new strategy to dampen CXCL2-induced neutrophil recruitment and thereby reduce neutrophil-mediated tissue injury in mice PMID: 22452634
cardiomyocytes are capable of secreting Nampt during stress, and exogenous Nampt is a positive regulator of cardiac hypertrophy and adverse ventricular remodeling PMID: 23203961
the proinflammatory actions of visfatin in chondrocytes involve regulation of IR signaling pathways, possibly through the control of Nampt enzymatic activity PMID: 22399297
This study indicates that plasma visfatin levels are significantly higher in ST-elevation myocardial infarction patients. PMID: 22137121
Visfatin administration during superovulation plays an important role in regulating oocyte quality and can improve oocyte quality and fertility of aged female mice. PMID: 22425197
Knockdown of Nampt in the mouse mesenchymal cell line C3H10T1/2 cells resulted in decreased Sirt1 activity and enhanced adipogenesis. PMID: 21812028
FoxOs control the Nampt gene expression and the NAD(+) signaling in the regulation of hepatic triglyceride homeostasis PMID: 21388966
study shows that PBEF has a neuronal protective role in cerebral ischemia presumably through enhanced energy metabolism PMID: 20485294
analysis of inhibition of nicotinamide phosphoribosyltransferase and how cellular bioenergetics reveals a mitochondrial insensitive NAD pool PMID: 20724478
study examined the effect of visfatin on cellular stress responses and signalling pathways in skeletal muscle; findings provide novel insights for the unique pathophysiological role of visfatin in skeletal muscle PMID: 19898975
activated, but not resting, T lymphocytes undergo massive NAD(+) depletion upon FK866-mediated Nampt inhibition PMID: 19936064
Estriol, estradiol and progesterone exert a synergistic effect on visfatin gene expression. Visfatin may play a physiological role during pregnancy. PMID: 20004694
Data show that visfatin exists in all the detected tissues, with the expression in spleen and adipose tissue higher than the others. PMID: 19500503
The role of Nampt in regulating autophagy and potential mechanisms by which NAD(+) regulates autophagy in the heart, is discussed. PMID: 19855187
Pre-B-cell colony-enhancing factor, whose expression is up-regulated in activated lymphocytes, is a nicotinamide phosphoribosyltransferase, a cytosolic enzyme involved in NAD biosynthesis. PMID: 12555668
NAD biosynthesis mediated by Nampt regulates the function of Sir2alpha and plays an important role in controlling various biological events in mammals PMID: 15381699
顯示更多
收起更多
亞細(xì)胞定位:
Nucleus. Cytoplasm. Secreted.
蛋白家族:
NAPRTase family
組織特異性:
Ubiquitously expressed in lymphoid and non-lymphoid tissues.