公司產(chǎn)品僅用于科研專(zhuān)業(yè)供應的抗體，是用于化學(xué)反應、分析化驗、研究實(shí)驗、教學(xué)實(shí)驗、化學(xué)配方使用的純凈化學(xué)品，價(jià)格實(shí)惠，多種規格供應，售后完善。
英文名稱(chēng): SIRT1

中文名稱(chēng): 沉默調節蛋白1抗體

規格：50ul、100ul、200ul
別    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;

研究領(lǐng)域:細胞生物  免疫學(xué)  染色質(zhì)和核信號  微生物學(xué)  新陳代謝  表觀(guān)遺傳學(xué)

抗體來(lái)源:Rabbit

克隆類(lèi)型:Polyclonal

交叉反應:Human, Mouse,  (predicted: Rat, Chicken, Cow, Horse, Rabbit, )

產(chǎn)品應用: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 （石蠟切片需做抗原修復）

not yet tested in other applications.

optimal dilutions/concentrations should be determined by the end user.

理論分子量:58/81kDa

細胞定位:細胞核 細胞漿

性    狀:Liquid

濃    度:1mg/ml

免 疫 原:KLH conjugated synthetic peptide derived from human SirtT1: 101-200/747

亞    型:IgG

純化方法:affinity purified by Protein A

緩 沖 液:0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.

注意事項:This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

產(chǎn)品介紹: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.
抗體基本結構：

抗體制備過(guò)程：

1.材料與試劑

 a．提取的動(dòng)物 Ig

 b．弗氏佐劑和弗氏不佐劑

 d．實(shí)驗動(dòng)物 兔

 e．其它材料及試劑

2、選擇實(shí)驗活體。

3、進(jìn)行動(dòng)物免疫實(shí)驗。

4、試取血樣進(jìn)行測試，查看免疫效果。

5、如果免疫成功，殺死實(shí)驗活體，采集全部血清。

6、純化出抗體。

7、鑒定抗體。胎牛血清（無(wú)菌采制）

免疫熒光技術(shù)的實(shí)驗步驟：

一、準備好試劑與儀器：

磷酸鹽緩沖鹽水、熒光標記的抗體溶液、緩沖甘油、搪瓷桶三只、有蓋搪瓷盒一只、熒光顯微鏡、玻片架、濾紙、37℃溫箱等。

二、實(shí)驗步驟

1.滴加0.01mol/L，pH7.4的PBS于待檢標本片上，十分鐘后棄去，使標本保持一定濕度。

2.滴加適當稀釋的熒光標記的抗體溶液，使其覆蓋標本，置于有蓋搪瓷盒內，保溫一定時(shí)間以三十分鐘為參考。

3.取出玻片，置玻片架上，先用0.01mol/L，pH7.4的PBS沖洗后，再按順序過(guò)0.01mol/L，pH7.4的PBS三缸浸泡，每缸三到五分鐘，并不停地搖晃振蕩。

4.取出玻片，用濾紙吸去多余水分，但不使標本干燥，加一滴緩沖甘油，以蓋玻片覆蓋。

5.立即用熒光顯微鏡觀(guān)察。觀(guān)察標本的特異性熒光強度。

抗體的定義：

抗體（antibody），（免疫球蛋白不僅僅只是抗體）是一種由漿細胞（效應B細胞）分泌，被免疫系統用來(lái)鑒別與中和外來(lái)物質(zhì)如細菌、病毒等的大型Y形蛋白質(zhì)，僅被發(fā)現存在于脊椎動(dòng)物的血液等體液中，及其B細胞的細胞膜表面?？贵w能識別特定外來(lái)物的一個(gè)特征，該外來(lái)目標被稱(chēng)為抗原。

動(dòng)物抗體功能分類(lèi)：

①豬抗體：豬瘟抗體，豬藍耳抗體，豬圓環(huán)病毒抗體，豬偽狂犬抗體，豬細小病毒抗體，豬口蹄疫抗體，豬流感抗體等。

②禽抗體:小鵝瘟抗體，鴨肝抗體抗體，鴨漿膜炎抗體，抗體，新城疫抗體等

③?？贵w：?？谔阋呖贵w，奶牛乳房炎抗體，牛流行熱抗體，牛病毒性腹瀉抗體，牛出血性敗血癥抗體等

④羊抗體：羊痘抗體，羊口蹄疫抗體，羊小反芻獸疫抗體，羊快疫抗體，羊腸毒血癥抗體，羊猝疽抗體，羊黑疫抗體等。

⑤犬抗體：犬狂犬病抗體、犬瘟熱抗體、犬副流感抗體、犬腺病毒抗體與犬細小病毒病抗體，狐貉水貂的偽狂犬抗體、細小病毒抗體、乙腦抗體等。

抗體的結構：

抗體是具有4條多肽鏈的對稱(chēng)結構，其中2條較長(cháng)、相對分子量較大的相同的重鏈(H鏈)；2條較短、相對分子量較小的相同的輕鏈(L鏈)。鏈間由二硫鍵和非共價(jià)鍵聯(lián)結形成一個(gè)由4條多肽鏈構成的單體分子。輕鏈有κ和λ兩種，重鏈有μ、δ、γ、ε和α五種。 整個(gè)抗體分子可分為恒定區和可變區兩部分。在給定的物種中，不同抗體分子的恒定區都具有相同的或幾乎相同的氨基酸序列?？勺儏^位于"Y"的兩臂末端。在可變區內有一小部分氨基酸殘基變化特別強烈，這些氨基酸的殘基組成和排列順序更易發(fā)生變異區域稱(chēng)高變區。高變區位于分子表面，最多由17個(gè)氨基酸殘基構成，少則只有2 ～ 3個(gè)。高變區氨基酸序列決定了該抗體結合抗原抗原的特異性。一個(gè)抗體分子上的兩個(gè)抗原結合部位是相同的，位于兩臂末端稱(chēng)抗原結合片段(antigen-binding fragment, Fab)。"Y"的柄部稱(chēng)結晶片段(crystalline fragment,FC)，糖結合在FC 上。

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