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產(chǎn)品訂購(gòu)信息：
英文名稱  Anti-SIM2 

中文名稱   轉(zhuǎn)錄因子蛋白SIM2抗體費(fèi)用 

別    名  bHLHe15; Class E basic helix loop helix protein 15; Class E basic helix-loop-helix protein 15; MGC119447; SIM 2; SIM; Sim2; SIM2_HUMAN; Single minded homolog 2 (Drosophila); Single minded homolog 2; Single-minded homolog 2; Transcription factor SIM2.

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, Dog, Pig, Cow, Horse, Sheep 

產(chǎn)品類型   一抗  

研究領(lǐng)域     細(xì)胞生物 信號(hào)轉(zhuǎn)導(dǎo) 轉(zhuǎn)錄調(diào)節(jié)因子 表觀遺傳學(xué)

蛋白分子量  predicted molecular weight: 73kDa

性    狀   Lyophilized or Liquid

免 疫 原 KLH conjugated synthetic peptide derived from human SIM2 

亞    型   IgG

純化方法   affinity purified by Protein A

儲(chǔ) 存 液   Preservative: 15mM Sodium Azide, Constituents: 1% BSA, 0.01M PBS, pH 7.4

轉(zhuǎn)錄因子蛋白SIM2抗體費(fèi)用 產(chǎn)品應(yīng)用    WB=1:100-500 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=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 The Per-Arnt-Sim (PAS) domain was identified as a 270 amino acid motif that mediates associations between various PAS family transcription factors. Several PAS domain family members have been identified including AhR, Arnt 1, and single-minded proteins (SIM1 and SIM2). The aromatic (aryl) hydrocarbon receptor, AhR, is a ligand dependent transcription factor that interacts with specific DNA sequences termed xenobiotic responsive elements (XREs) to activate several genes including CYP1A1, glutathione S-transferase Ya subunit and DT-diaphorase. The Ah receptor nuclear translocator protein 1 (Arnt 1) is required for ligand- dependent nuclear translocation of the Ah receptor and is also necessary for Ah receptor binding to the XRE element. Both SIM1 and SIM2 inhibit AhR/Arnt dimerization, thus inhibiting transcriptional activation. The SIM genes are thought to be involved in the directing and regionalization of tissues during development and the SIM2 gene, which is located on chromosome 21, is a candidate for the gene responsible for Down syndrome.

Function : Transcription factor that may be a master gene of CNS development in cooperation with Arnt. It may have pleiotropic effects in the tissues expressed during development.

Subunit : Efficient DNA binding requires dimerization with another bHLH protein. Heterodimer of SIM2 and ARNT.

Subcellular Location : Nucleus.

Similarity : Contains 1 basic helix-loop-helix (bHLH) domain.

Contains 1 PAC (PAS-associated C-terminal) domain.

Contains 2 PAS (PER-ARNT-SIM) domains.

Contains 1 Single-minded C-terminal domain.

Database links : UniProtKB/Swiss-Prot: Q14190.2

Anti-IL-17/RBITC(Interleukin-17) 羅丹明標(biāo)記白細(xì)胞介素17抗體IgGMulti-class antibodies規(guī)格： 0.2ml

CPT1A peptide 肉毒堿棕櫚?；D(zhuǎn)移酶1A多肽抗原Multi-class antibodies規(guī)格： 0.5mg

促腎上腺皮質(zhì)激素(1-39)抗體 Anti-ACTH 0.1ml

Sphingomyelin Synthase 1 英文名稱： 鞘磷脂合成酶1抗體 0.2ml

EEF1D 英文名稱： 延伸因子EF-1δ抗體 0.2ml

Rhesus antibody Rh Phospho-FGFR1+FGFR2 (Tyr463) 磷酸化堿性成纖維細(xì)胞生長(zhǎng)因子受體1抗體 規(guī)格 0.1ml

CPT1A peptide 肉毒堿棕櫚酰基轉(zhuǎn)移酶1A多肽抗原Multi-class antibodies規(guī)格： 0.5mg

Anti-Phospho-PDGF Receptor alpha (Tyr754) /FITC 熒光素標(biāo)記磷酸化血小板源性生長(zhǎng)因子受體-α抗體IgGMulti-class antibodies規(guī)格： 0.2ml

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

兔抗人鳥苷三磷酸酶-發(fā)動(dòng)蛋白2抗體 Anti-Dynamin 2 0.1ml

Rabbit Anti-horse IgM/PE-Cy5.5 PE-Cy5.5標(biāo)記的兔抗馬IgM 0.1ml

FBXL20 英文名稱： FBXL20蛋白抗體 0.2ml

Rhesus antibody Rh phospho-TNIK(Ser769) 磷酸化TRAF2和NCK激酶相互作用蛋白抗體 規(guī)格 0.1ml

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

NR2C/NMDAR2C(N-Methyl-d-Asprtate receptor 2C) 谷氨酸受體2C(多肽)Multi-class antibodies規(guī)格： 0.5mg

Anti-ARC ARC抗體Multi-class antibodies規(guī)格： 0.2ml

Rhesus antibody Rh phospho-ATF2(Thr69/71) 磷酸化活化復(fù)制因子2抗體 規(guī)格 0.1ml

大鼠SP(HRP)試劑盒 140片 進(jìn)口原料

Uteroglobin 英文名稱： 子宮珠蛋白抗體 0.2ml

DIM-7 英文名稱： DIM-7蛋白抗體 0.2ml

Anti-ARC ARC抗體Multi-class antibodies規(guī)格： 0.2ml

IL18 Protein Cynomolgus 重組食蟹猴 IL-18 / IL-1F4 蛋白 (His 標(biāo)簽)

小鼠胰島細(xì)胞完全培養(yǎng)基 100mL

VNN1 Others Mouse 小鼠 VNN1 / Vanin-1 人細(xì)胞裂解液 (陽性對(duì)照)

PC9人細(xì)胞 PC9 human lung cancer cells DMEM+10% FBS

CL-0308TE-13(人細(xì)胞)5×106cells/瓶×2

NCTC 1469(小鼠正常肝細(xì)胞) 5×106cells/瓶×2 WEHI 22.1(B淋巴細(xì)胞)

CM-R028大鼠食管平滑肌細(xì)胞完全培養(yǎng)基100mL

FAM3B Others Human 人 FAM3B 人細(xì)胞裂解液 (陽性對(duì)照)

小鼠成年表皮角質(zhì)形成層細(xì)胞完全培養(yǎng)基 100mL

YAC-1小鼠細(xì)胞 YAC-1 mouse lymphoma cells RPMI-1640(GIBCO)+10%FBS

IL17RD Protein Canine 重組狗 IL17RD 蛋白 (His 標(biāo)簽)

人脈絡(luò)絲表皮細(xì)胞 (HCPEpiC)( 5×105 ) 人臍帶血單個(gè)核細(xì)胞 Saos-2，人成細(xì)胞

轉(zhuǎn)錄因子蛋白SIM2抗體費(fèi)用 IL18 Protein Cynomolgus 重組食蟹猴 IL-18 / IL-1F4 蛋白 (His 標(biāo)簽)

小鼠胰島細(xì)胞完全培養(yǎng)基 100mL

VNN1 Others Mouse 小鼠 VNN1 / Vanin-1 人細(xì)胞裂解液 (陽性對(duì)照)

PC9人細(xì)胞 PC9 human lung cancer cells DMEM+10% FBS

CL-0308TE-13(人細(xì)胞)5×106cells/瓶×2

NCTC 1469(小鼠正常肝細(xì)胞) 5×106cells/瓶×2 WEHI 22.1(B淋巴細(xì)胞)

抗體的生物素化標(biāo)記實(shí)驗(yàn)要點(diǎn)：

1. 轉(zhuǎn)錄因子蛋白SIM2抗體費(fèi)用 如在反應(yīng)混合液中有疊氮鈉或游離氨基存在,會(huì)抑制標(biāo)記反應(yīng)。因此,蛋白質(zhì)在反應(yīng)前要對(duì) 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(huì)有所不同,選擇不當(dāng)則影響標(biāo)記的效率,應(yīng)先用幾個(gè)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(diǎn)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(shí)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(diǎn)時(shí),或位于酶的催化位點(diǎn)時(shí),生物素化會(huì)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(tuán),如羰基、氨基、巰基、異咪唑基及苯酚基,也可與糖基共價(jià)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(huì)對(duì)生物素化抗體與親和素的結(jié)合產(chǎn)生競(jìng)爭(zhēng)作用；

8.在細(xì)胞的熒光標(biāo)記實(shí)驗(yàn)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(duì)某些細(xì)胞可導(dǎo)致高本底。

抗體的鑒定：

1）轉(zhuǎn)錄因子蛋白SIM2抗體費(fèi)用 抗體的效價(jià)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(jià)。不同的抗原制備的抗體,要求的效價(jià)不一。鑒定效價(jià)的方法很多,包括有試管凝集反應(yīng),瓊脂擴(kuò)散試驗(yàn),酶聯(lián)免疫吸附試驗(yàn)等。常用的抗原所制備的抗體一般都有約成的鑒定效價(jià)的方法,以資比較。如制備抗抗體的效價(jià),一般就采用瓊脂擴(kuò)散試驗(yàn)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(shí)別能力?？贵w的特異性高,它的識(shí)別能力就強(qiáng)。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(jìng)爭(zhēng)抑制試驗(yàn)測(cè)定。以不同濃度抗原和近似抗原分別做競(jìng)爭(zhēng)抑制曲線,計(jì)算各自的結(jié)合率,求出各自在IC50時(shí)的濃度,并按公式計(jì)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(shí),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(diǎn)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(cè)定對(duì)抗體的篩選,確定抗體的用途,驗(yàn)證抗體的均一性等均有重要意義。