抗體的生物素化標(biāo)記實(shí)驗(yàn)要點(diǎn)：

1. 泛素結(jié)合蛋白P62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(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,或位于酶的催化位點(diǎn)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(tuán),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(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,故對某些細(xì)胞可導(dǎo)致高本底。

產(chǎn)品訂購信息：
英文名稱  Anti-SQSTM1/p62 

中文名稱   泛素結(jié)合蛋白P62抗體規(guī)格 

別    名  A170; EBI 3 associated protein of 60 kDa; EBI3 associated protein of 60 kDa; EBI3-associated protein of 60 kDa; EBIAP; MGC127197; ORCA; OSF-6; Osi; OSIL; Oxidative stress induced like; p60; p62; p62B; Paget disease of bone 3; PDB 3; PDB3; Phosphotyrosine independent ligand for the Lck SH2 domain of 62 kDa; Phosphotyrosine independent ligand for the Lck SH2 domain p62; Phosphotyrosine-independent ligand for the Lck SH2 domain of 62 kDa; PKC-zeta-interacting protein; Protein kinase C-zeta-interacting protein; Sequestosome 1; Sequestosome-1; SQSTM 1; SQSTM_HUMAN; Sqstm1; STAP; STONE14; Ubiquitin binding protein p62; Ubiquitin-binding protein p62; ZIP 3; ZIP; ZIP3

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, Rabbit, Sheep 

產(chǎn)品類型   一抗  

研究領(lǐng)域    心 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 表觀遺傳學(xué)

蛋白分子量  predicted molecular weight: 48kDa

性    狀   Lyophilized or Liquid

免 疫 原 KLH conjugated synthetic peptide derived from human SQSTM1/p62 

亞    型   IgG

純化方法   affinity purified by Protein A

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

泛素結(jié)合蛋白P62抗體規(guī)格 產(chǎn)品應(yīng)用    WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 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 Adapter protein which binds ubiquitin and may regulate the activation of NFKB1 by TNF-alpha, nerve growth factor (NGF) and interleukin-1. May play a role in titin/TTN downstream signaling in muscle cells. May regulate signaling cascades through ubiquitination. Adapter that mediates the interaction between TRAF6 and CYLD (By similarity). May be involved in cell differentiation, apoptosis, immune response and regulation of K(+) channels.

Function : Adapter protein which binds ubiquitin and may regulate the activation of NFKB1 by TNF-alpha, nerve growth factor (NGF) and interleukin-1. May play a role in titin/TTN downstream signaling in muscle cells. May regulate signaling cascades through ubiquitination. Adapter that mediates the interaction between TRAF6 and CYLD (By similarity). May be involved in cell differentiation, apoptosis, immune response and regulation of K(+) channels.

Subunit : Cytoplasm. Late endosome. Nucleus. Endoplasmic reticulum. Note=Sarcomere. In cardiac muscles localizes to the sarcomeric band. Localizes to late endosomes. May also localize to the nucleus. Accumulates in neurofibrillary tangles and in Lewy bodies of neurons from individuals with Alzheimer and Parkinson disease respectively. Enriched in Rosenthal fibers of pilocytic astrocytoma. In liver cells, accumulates in Mallory bodies associated with alcoholic hepatitis, Wilson disease, indian childhood cirrhosis and in hyaline bodies associated with hepatocellular carcinoma. Colocalizes with TRIM13 in the perinuclear endoplasmic reticulum.

Subcellular Location : Cytoplasm. Late endosome. Nucleus. Sarcomere (By similarity). In cardiac muscles localizes to the sarcomeric band (By similarity). Localizes to late endosomes. May also localize to the nucleus. Accumulates in neurofibrillary tangles and in Lewy bodies of neurons from individuals with Alzheimer and Parkinson disease respectively. Enriched in Rosenthal fibers of pilocytic astrocytoma. In liver cells, accumulates in Mallory bodies associated with alcoholic hepatitis, Wilson disease, indian childhood cirrhosis and in hyaline bodies associated with hepatocellular carcinoma.

Tissue Specificity : Ubiquitously expressed.

Post-translational modifications : Phosphorylated. May be phosphorylated by PRKCZ (By similarity). Phosphorylated in vitro by TTN.

DISEASE : Defects in SQSTM1 are a cause of Paget disease of bone (PDB) [MIM:602080]. PDB is a metabolic bone disease affecting the axial skeleton and characterized by focal areas of increased and disorganized bone turn-over due to activated osteoclasts. Manifestations of the disease include bone pain, deformity, pathological fractures, deafness, neurological complications and increased risk of osteosarcoma. PDB is a chronic disease affecting 2 to 3% of the population above the age of 40 years.

Similarity : Contains 1 OPR domain.

Contains 1 UBA domain.

Contains 1 ZZ-type zinc finger.

抗體的鑒定：

1）泛素結(jié)合蛋白P62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(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的方法,以資比較。如制備抗抗體的效價,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)的識別能力?？贵w的特異性高,它的識別能力就強(qiáng)。衡量特異性通常以交叉反應(yīng)率來表示。交叉反應(yīng)率可用競爭抑制試驗(yàn)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(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親和力的測定對抗體的篩選,確定抗體的用途,驗(yàn)證抗體的均一性等均有重要意義。

桿狀缺失區(qū)基因1 多克隆抗體  RTDR1 Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

網(wǎng)狀蛋白2 多克隆抗體  RTN2 Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

網(wǎng)狀蛋白4受體 多克隆抗體  RTN4R Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

松弛素/樣肽受體1 多克隆抗體  RXFP1 Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

類視黃醇X受體α 多克隆抗體  RXRA Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

載脂蛋白A1抗體     子宮內(nèi)膜抗體

髓系、淋巴、混合系易位基因10抗體     滋養(yǎng)層細(xì)胞抗原3β-HSD抗體

腺瘤樣抗體     滋養(yǎng)層細(xì)胞抗原3β7抗體

腺苷酸環(huán)化酶1抗體     椎骨蛋白2抗體

雄激素受體相關(guān)蛋白24抗體     裝配銜接蛋白180抗體

組蛋白H2A.X (phospho Ser139) 多克隆抗體  Histone H2A.X (phospho Ser139) Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

組蛋白H3 (phospho Ser10) 多克隆抗體  Histone H3 (phospho Ser10) Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

組蛋白H3 (phospho Ser28) 多克隆抗體  Histone H3 (phospho Ser28) Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

Hrs (phospho Tyr216) 多克隆抗體  Hrs (phospho Tyr216) Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

熱休克蛋白27 (phospho Ser15) 多克隆抗體  HSP27 (phospho Ser15) Polyclonal Antibody  700/30ul#1540/100ul#2520/200ul

何首烏Polygonum multiflorum Polygonal (3R,4aS,8aS)-3-羥基-5,5,8a-基-3,4,4a,6,7,8-六氫-2-甲醛 72537-20-3 C14H22O2 ≥98%

莪術(shù)二同ZqdocrytwokqtonqHPLC≥98%,20mg/支

重組人干擾素-α1b Recombinant Human Interferon-alpha 1b (rhIFN-α1b) 分子量為19.4kD 純度>95% RP-HPLC與還原/非還原SDS-PAGE銀染膠分析方法

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