公司产品仅用于科研专业供应的抗体,是用于化学反应、分析化验、研究实验、教学实验、化学配方使用的纯净化学品,价格实惠,多种规格供应,售后完善。
英文名称: SIRT1
中文名称: 沉默调节蛋白1抗体
规格:50ul、100ul、200ul
别 名:SIR2L1; NAD-dependent protein deacetylase sirtuin-1; EC:2.3.1.286; hSIRT1; NAD-dependent protein deacylase sirtuin-1; Regulatory protein SIR2 homolog 1; SIR2-like protein 1 (hSIR2); SirtT1 75 kDa fragment; SIR1_HUMAN;
研究领域:细胞生物 免疫学 染色质和核信号 微生物学 新陈代谢 表观遗传学
抗体来源:Rabbit
克隆类型:Polyclonal
交叉反应:Human, Mouse, (predicted: Rat, Chicken, Cow, Horse, Rabbit, )
产品应用:WB=1:500-2000 ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1μg/Test IF=1:100-500 (石蜡切片需做抗原修复)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
理论分子量:58/81kDa
细胞定位:细胞核 细胞浆
性 状:Liquid
浓 度:1mg/ml
免 疫 原:KLH conjugated synthetic peptide derived from human SirtT1: 101-200/747
亚 型:IgG
纯化方法:affinity purified by Protein A
缓 冲 液:0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
注意事项:This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍:This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class I of the sirtuin family. Alternative splicing results in multiple transcript variants.
NAD-dependent protein deacetylase, which regulates processes such as apoptosis and muscle differentiation by deacetylating key proteins. Deacetylates 'Lys-382' of p53/TP53 and impairs its ability to induce proapoptotic program and modulate cell senescence. Deacetylates TAF1B and thereby represses rDNA transcription by the RNA polymerase I. Deacetylates 'Lys-266' of SUV39H1, leading to its activation. Deacetylates 'Lys-26' of HIST1H1E. Involved in HES1- and HEY2-mediated transcriptional repression. Inhibits skeletal muscle differentiation by deacetylating PCAF and MYOD1. May serve as a sensor of the cytosolic ratio of NAD(+)/NADH, which is essential in skeletal muscle cell differentiation. Deacetylates 'Lys-16' of histone H4 (in vitro). Component of the eNoSC (energy-dependent nucleolar silencing) complex, a complex that mediates silencing of rDNA in response to intracellular energy status and acts by recruiting histone-modifying enzymes. The eNoSC complex is able to sense the energy status of cell: upon glucose starvation, elevation of NAD(+)/NADP(+) ratio activates SIRT1, leading to histone H3 deacetylation followed by dimethylation of H3 at 'Lys-9' (H3K9me2) by SUV39H1 and the formation of silent chromatin in the rDNA locus. Deacetylates H2A. In case of HIV-1 infection, interacts with and deacetylates the viral Tat protein. Deacetylates APEX1 at 'Lys-6' and 'Lys-7'. Stimulates cellular AP endonuclease activity by promoting the association of APEX1 to XRCC1.
抗体基本结构:
抗体制备过程:
1.材料与试剂
a.提取的动物 Ig
b.弗氏佐剂和弗氏不佐剂
d.实验动物 兔
e.其它材料及试剂
2、选择实验活体。
3、进行动物免疫实验。
4、试取血样进行测试,查看免疫效果。
5、如果免疫成功,杀死实验活体,采集全部血清。
6、纯化出抗体。
7、鉴定抗体。胎牛血清(无菌采制)
免疫荧光技术的实验步骤:
一、准备好试剂与仪器:
磷酸盐缓冲盐水、荧光标记的抗体溶液、缓冲甘油、搪瓷桶三只、有盖搪瓷盒一只、荧光显微镜、玻片架、滤纸、37℃温箱等。
二、实验步骤
1.滴加0.01mol/L,pH7.4的PBS于待检标本片上,十分钟后弃去,使标本保持一定湿度。
2.滴加适当稀释的荧光标记的抗体溶液,使其覆盖标本,置于有盖搪瓷盒内,保温一定时间以三十分钟为参考。
3.取出玻片,置玻片架上,先用0.01mol/L,pH7.4的PBS冲洗后,再按顺序过0.01mol/L,pH7.4的PBS三缸浸泡,每缸三到五分钟,并不停地摇晃振荡。
4.取出玻片,用滤纸吸去多余水分,但不使标本干燥,加一滴缓冲甘油,以盖玻片覆盖。
5.立即用荧光显微镜观察。观察标本的特异性荧光强度。
抗体的定义:
抗体(antibody),(免疫球蛋白不仅仅只是抗体)是一种由浆细胞(效应B细胞)分泌,被免疫系统用来鉴别与中和外来物质如细菌、病毒等的大型Y形蛋白质,仅被发现存在于脊椎动物的血液等体液中,及其B细胞的细胞膜表面。抗体能识别特定外来物的一个特征,该外来目标被称为抗原。
动物抗体功能分类:
①猪抗体:猪瘟抗体,猪蓝耳抗体,猪圆环病毒抗体,猪伪狂犬抗体,猪细小病毒抗体,猪口蹄疫抗体,猪流感抗体等。
②禽抗体:小鹅瘟抗体,鸭肝抗体抗体,鸭浆膜炎抗体,抗体,新城疫抗体等
③牛抗体:牛口蹄疫抗体,奶牛乳房炎抗体,牛流行热抗体,牛病毒性腹泻抗体,牛出血性败血症抗体等
④羊抗体:羊痘抗体,羊口蹄疫抗体,羊小反刍兽疫抗体,羊快疫抗体,羊肠毒血症抗体,羊猝疽抗体,羊黑疫抗体等。
⑤犬抗体:犬狂犬病抗体、犬瘟热抗体、犬副流感抗体、犬腺病毒抗体与犬细小病毒病抗体,狐貉水貂的伪狂犬抗体、细小病毒抗体、乙脑抗体等。
抗体的结构:
抗体是具有4条多肽链的对称结构,其中2条较长、相对分子量较大的相同的重链(H链);2条较短、相对分子量较小的相同的轻链(L链)。链间由二硫键和非共价键联结形成一个由4条多肽链构成的单体分子。轻链有κ和λ两种,重链有μ、δ、γ、ε和α五种。 整个抗体分子可分为恒定区和可变区两部分。在给定的物种中,不同抗体分子的恒定区都具有相同的或几乎相同的氨基酸序列。可变区位于"Y"的两臂末端。在可变区内有一小部分氨基酸残基变化特别强烈,这些氨基酸的残基组成和排列顺序更易发生变异区域称高变区。高变区位于分子表面,最多由17个氨基酸残基构成,少则只有2 ~ 3个。高变区氨基酸序列决定了该抗体结合抗原抗原的特异性。一个抗体分子上的两个抗原结合部位是相同的,位于两臂末端称抗原结合片段(antigen-binding fragment, Fab)。"Y"的柄部称结晶片段(crystalline fragment,FC),糖结合在FC 上。
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