抗體的生物素化標(biāo)記實驗要點：

1. 沉默調(diào)節(jié)樣蛋白SirT7抗體規(guī)格 如在反應(yīng)混合液中有疊氮鈉或游離氨基存在,會抑制標(biāo)記反應(yīng)。因此,蛋白質(zhì)在反應(yīng)前要對 0.1mol/L碳酸氫鈉緩沖液或0.5mol/L硼酸緩沖液充分透析；

2.所用的NHSB及待生物素化蛋白質(zhì)之間的分子比按蛋白質(zhì)表面的ε-氨基的密度會有所不同,選擇不當(dāng)則影響標(biāo)記的效率,應(yīng)先用幾個不同的分子比來篩選最適條件；

3.用NHSB量過量也是不利的,抗原的結(jié)合位點可能因此被封閉,導(dǎo)致抗體失活；

4.由于抗體的氨基不易接近可能造成生物素化不足,此時可加入去污劑如 Triton x-100, Tween20等；

5.當(dāng)游離ε-氨基(賴氨酸殘基的氨基)存在于抗體的抗原結(jié)合位點時,或位于酶的催化位點時,生物素化會降低或損傷抗體蛋白的結(jié)合力或活性；

6.生物素還可能與不同的功能基團,如羰基、氨基、巰基、異咪唑基及苯酚基,也可與糖基共價結(jié)合；

7.交聯(lián)反應(yīng)后,應(yīng)充分透析,否則,殘余的生物素會對生物素化抗體與親和素的結(jié)合產(chǎn)生競爭作用；

8.在細(xì)胞的熒光標(biāo)記實驗中,中和親和素的本底低,但由于鏈霉親和素含有少量正電荷,故對某些細(xì)胞可導(dǎo)致高本底。

產(chǎn)品訂購信息：
英文名稱  Anti-SIRT7 

中文名稱   沉默調(diào)節(jié)樣蛋白SirT7抗體規(guī)格 

別    名  NAD dependent deacetylase sirtuin 7; NAD-dependent deacetylase sirtuin-7; Silent mating type information regulation 2 homolog; Silent mating type information regulation 2 S.cerevisiae homolog 7; SIR2 L7; SIR2 like protein 7; Sir2 related protein type 7; SIR2, S.CEREVISIAE, HOMOLOG-LIKE 7; SIR2-like protein 7; SIR2L 7; SIR2L7; SIRT 7; SIRT7; SIR7_HUMAN; Sirtuin 7; Sirtuin type 7; Sirtuin7.

濃    度   1mg/1ml

規(guī) 格  0.2ml/200μg

抗體來源   Rabbit

克隆類型   polyclonal

交叉反應(yīng)   Human, Mouse, Rat, Chicken, Dog, Pig 

產(chǎn)品類型   一抗  

研究領(lǐng)域     心 免疫學(xué) 染色質(zhì)和核信號 信號轉(zhuǎn)導(dǎo) 細(xì)胞凋亡 轉(zhuǎn)錄調(diào)節(jié)因子 激酶和磷酸酶 結(jié)合蛋白 表觀遺傳學(xué)

蛋白分子量  predicted molecular weight: 45kDa

性    狀   Lyophilized or Liquid

免 疫 原 KLH conjugated synthetic peptide derived from human SIRT7 

亞    型   IgG

純化方法   affinity purified by Protein A

儲 存 液   0.01M PBS, pH 7.4 with 10 mg/ml BSA and 0.1% Sodium azide

沉默調(diào)節(jié)樣蛋白SirT7抗體規(guī)格 產(chǎn)品應(yīng)用    WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500

（石蠟切片需做抗原修復(fù)） 

 not yet tested in other applications.

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

保存條件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C. 

Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. 

產(chǎn)品介紹 SIRT7 is 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 IV of the sirtuin family.

Function : NAD-dependent protein deacetylase. Required to restore the transcription of ribosomal RNA (rRNA) at the exit from mitosis. Promotes the association of RNA polymerase I with the rDNA promoter region and coding region. Stimulates transcription activity of the RNA polymerase I complex.

Subunit : Interacts with UBTF and the RNA polymerase I complex. Interacts with histone H2A and/or histone H2B.

Subcellular Location : Cytoplasm. Nucleus, nucleolus. Note=Located close to the nuclear membrane when in the cytoplasm. Associated with chromatin. Associated with rDNA promoter and transcribed region. Associated with nucleolar organizer regions during mitosis.

Post-translational modifications : Phosphorylated during mitosis (Probable).

Similarity : Belongs to the sirtuin family. Class IV subfamily.

Contains 1 deacetylase sirtuin-type domain.

Database links : UniProtKB/Swiss-Prot: Q9NRC8.1

抗體的鑒定：

1）沉默調(diào)節(jié)樣蛋白SirT7抗體規(guī)格 抗體的效價鑒定：不管是用于診斷還是用于,制備抗體的目的都是要求較高效價。不同的抗原制備的抗體,要求的效價不一。鑒定效價的方法很多,包括有試管凝集反應(yīng),瓊脂擴散試驗,酶聯(lián)免疫吸附試驗等。常用的抗原所制備的抗體一般都有約成的鑒定效價的方法,以資比較。如制備抗抗體的效價,一般就采用瓊脂擴散試驗來鑒定。

2）抗體的特異性鑒定：抗體的特異性是指與相應(yīng)抗原或近似抗原物質(zhì)的識別能力。抗體的特異性高,它的識別能力就強。衡量特異性通常以交叉反應(yīng)率來表示。交叉反應(yīng)率可用競爭抑制試驗測定。以不同濃度抗原和近似抗原分別做競爭抑制曲線,計算各自的結(jié)合率,求出各自在IC50時的濃度,并按公式計算交叉反應(yīng)率。 

如果所用抗原濃度IC50濃度為pg/管,而一些近似抗原物質(zhì)的IC50濃度幾乎是無窮大時,表示這一抗血清與其他抗原物質(zhì)的交叉反應(yīng)率近似為0,即該血清的特異性較好。

3）抗體親和力：是指抗體和抗原結(jié)合的牢固程度。親和力的高低是由抗原分子的大小,抗體分子的結(jié)合位點與抗原決定簇之間立體構(gòu)型的合適度決定的。有助于維持抗原抗體復(fù)合物穩(wěn)定的分子間力有氫鍵,疏水鍵,側(cè)鏈相反電荷基因的庫侖力,范德華力和空間斥力。親和力常以親和常數(shù)K表示,K的單位是L/mol?？贵w親和力的測定對抗體的篩選,確定抗體的用途,驗證抗體的均一性等均有重要意義。

Anti-TRA16 /FITC 熒光素標(biāo)記激素受體相關(guān)蛋白/孤兒素受體相關(guān)蛋白抗體IgGMulti-class antibodies規(guī)格： 0.2ml

PS-1(NT)，Presennillin-1(S182) 早老素蛋白-1(抗原)Multi-class antibodies規(guī)格： 0.5mg

有死亡區(qū)的壞死因子受體1相關(guān)蛋白抗體 Anti-TRADD 0.2ml

SDHC 英文名稱： 琥珀酸細(xì)胞色素亞基B560抗體 0.2ml

EAA1 英文名稱： 谷酸受體KA1抗體 0.1ml

Rhesus antibody Rh phospho-ITGB4(Tyr1494) 磷酸化整合素β4抗體 規(guī)格 0.1ml

PS-1(NT)，Presennillin-1(S182) 早老素蛋白-1(抗原)Multi-class antibodies規(guī)格： 0.5mg

Anti-Phospho-PDGF Receptor beta (Tyr751)/FITC 熒光素標(biāo)記磷酸化血小板源性生長因子受體-B抗體IgGMulti-class antibodies規(guī)格： 0.2ml

Rabbit Anti-horse IgG/FITC 熒光素標(biāo)記兔抗馬IgGMulti-class antibodies規(guī)格： 0.3ml

相關(guān)基因抗體 Anti-ECG2 0.1ml

Rabbit Anti-human sIgA/PE-Cy7 PE-Cy7標(biāo)記的兔抗人分泌型IgA 0.1ml

FBXO24 英文名稱： FBXO24蛋白抗體 0.2ml

Rhesus antibody Rh Phospho-TH (Ser31) 磷酸化酪氨酸羥化酶抗體 規(guī)格 0.1ml

Rabbit Anti-horse IgG/FITC 熒光素標(biāo)記兔抗馬IgGMulti-class antibodies規(guī)格： 0.3ml

Mcl-1(myeloid cell leukemia 1) peptide 髓樣細(xì)胞-1抗原Multi-class antibodies規(guī)格： 0.5mg

Anti-phospho-AMPK beta 1(Ser182) 磷酸化腺苷單磷酸活化蛋白激酶β1抗體Multi-class antibodies規(guī)格： 0.1ml

Rhesus antibody Rh phospho-B-Raf (Ser444) 磷酸化B-Raf抗體 規(guī)格 0.1ml

Tris- HCl-TWEEN 20緩沖液 100ml 0.5mol/L pH7.6

VEGF-B 英文名稱： 內(nèi)皮生長因子B抗體 0.1ml

DUOX2 英文名稱： 雙氧化酶2/甲狀腺氧化酶2抗體 0.2ml

Anti-phospho-AMPK beta 1(Ser182) 磷酸化腺苷單磷酸活化蛋白激酶β1抗體Multi-class antibodies規(guī)格： 0.1ml

IFNW1 Protein Human 重組人 IFN omega 1 / IFNW1 蛋白 (His 標(biāo)簽)

大鼠胎兒真皮成纖維細(xì)胞完全培養(yǎng)基 100mL

IFNG Others Rat 大鼠 IFNG / Ierferon Gamma 人細(xì)胞裂解液 (陽性對照)

Vero非洲綠猴腎細(xì)胞 Vero the African green monkey kidney cells MEM培養(yǎng)基(GIBCO)+10%FBS

膀胱平滑肌細(xì)胞Many types of cells包裝：5 × 105次方(1ml)

L W-3A(小鼠皮下結(jié)締組織細(xì)胞) 5×106cells/瓶×2 HeLa [ Chang Liver ](張氏肝細(xì)胞)

CM-R121大鼠角膜內(nèi)皮細(xì)胞完全培養(yǎng)基100mL

CRP Others Human 人 CRP / C-Reactive Protein 人細(xì)胞裂解液 (陽性對照)

雪旺細(xì)胞培養(yǎng)基SCM

PC-3M 1E8細(xì)胞，人細(xì)胞高轉(zhuǎn)移亞系 大鼠細(xì)胞,MMQ細(xì)胞 人扁桃體上皮細(xì)胞HTEpiC

HHCC(人細(xì)胞) 5×106cells/瓶×2

293(人胚腎細(xì)胞) 5×106cells/瓶×2 CM-H019人上皮細(xì)胞完全培養(yǎng)基100mL 人內(nèi)根殼細(xì)胞RNAHHIRSC miRNA5 μg

沉默調(diào)節(jié)樣蛋白SirT7抗體規(guī)格 IFNW1 Protein Human 重組人 IFN omega 1 / IFNW1 蛋白 (His 標(biāo)簽)

大鼠胎兒真皮成纖維細(xì)胞完全培養(yǎng)基 100mL

IFNG Others Rat 大鼠 IFNG / Ierferon Gamma 人細(xì)胞裂解液 (陽性對照)

Vero非洲綠猴腎細(xì)胞 Vero the African green monkey kidney cells MEM培養(yǎng)基(GIBCO)+10%FBS

膀胱平滑肌細(xì)胞Many types of cells包裝：5 × 105次方(1ml)

L W-3A(小鼠皮下結(jié)締組織細(xì)胞) 5×106cells/瓶×2 HeLa [ Chang Liver ](張氏肝細(xì)胞)