簡要描述:信號肽肽酶SPP抗體注意事項(xiàng);This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. Function: Catalyzes intramembrane proteolysis of some signal peptides after they have been cleaved from a preprotein, resulting in the release of the fragment from the ER membrane into the cytoplasm. Required to generate lymphocyte cell surface (HLA-E) epitopes derived from MHC class I signal peptides. May play a role in graft rejection. May be necessary for the removal of the signal peptide that remains attached to the hepatitis C virus core protein after the initial proteolytic processing of the polyprotein. Involved in the intramembrane cleavage of the integral membrane protein PSEN1.
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商品屬性:
貨號 | 產(chǎn)品名稱 | 規(guī)格 |
GOY-01K0575 | 信號肽肽酶SPP抗體 | 50ul |
GOY-01K0575 | 信號肽肽酶SPP抗體 | 100ul |
GOY-01K0575 | 信號肽肽酶SPP抗體 | 200ul |
英文名稱: Signal Peptide Peptidase
中文名稱: 信號肽肽酶SPP抗體
別 名;Histocompatibility (minor) 13; HM 13; HM13;
HM13_HUMAN; IMP 1; IMP-1; IMP1; IMPAS; IMPAS-1; Intramembrane Protease 1;
Intramembrane protease; Minor Histocompatibility 13; Minor histocompatibility
antigen 13; Minor histocompatibility antigen H13; MSTP086; Presenilin like
protein 3; Presenilin-like protein 3; PSENL 3; PSENL3; PSL 3; PSL3; Signal
peptide peptidase; Signal peptide peptidase beta; SPP; dJ324O17.1; H13; hIMP1;
hIMP1 protein.
研究領(lǐng)域;腫瘤 免疫學(xué) 神經(jīng)生物學(xué) 信號轉(zhuǎn)導(dǎo)
抗體來源;Rabbit
克隆類型;Polyclonal
交叉反應(yīng);(predicted: Human, Mouse, Rat,
Chicken, Dog, Pig, Cow, Horse, Rabbit, )
產(chǎn)品應(yīng)用;WB=1:500-2000
ELISA=1:5000-10000
not yet tested in
other applications.
optimal
dilutions/concentrations should be determined by the end user.
理論分子量;42kDa
細(xì)胞定位;細(xì)胞漿 細(xì)胞膜
性 狀;Liquid
濃 度;1mg/ml
免 疫 原;KLH conjugated synthetic
peptide derived from human Signal Peptide Peptidase: 251-350/377
亞 型;IgG
純化方法;affinity purified by Protein A
保存條件;Shipped at 4℃. Store at -20 °C for one year. Avoid
repeated freeze/thaw cycles.
注意事項(xiàng);This product as supplied is
intended for research use only, not for use in human, therapeutic or diagnostic
applications.
Function:
Catalyzes intramembrane proteolysis of some signal peptides after they have been cleaved from a preprotein, resulting in the release of the fragment from the ER membrane into the cytoplasm. Required to generate lymphocyte cell surface (HLA-E) epitopes derived from MHC class I signal peptides. May play a role in graft rejection. May be necessary for the removal of the signal peptide that remains attached to the hepatitis C virus core protein after the initial proteolytic processing of the polyprotein. Involved in the intramembrane cleavage of the integral membrane protein PSEN1.
實(shí)驗(yàn)流程:
(1)特異性結(jié)合抗原:抗體本身不能直接溶解或殺傷帶有特異抗原的靶細(xì)胞,通常需要補(bǔ)體或吞噬細(xì)胞等共同發(fā)揮效應(yīng)以清除病原微生物或?qū)е虏±頁p傷。然而,抗體可通過與病毒或毒素的特異性結(jié)合,直接發(fā)揮中和病毒的作用。
(2)活補(bǔ)體:IgM、IgG1、IgG2和IgG3可通過經(jīng)典途徑激活補(bǔ)體,凝聚的IgA、IgG4和IgE可通過替代途徑激活補(bǔ)體。
(3)結(jié)合細(xì)胞:不同類別的免疫球蛋白,可結(jié)合不同種的細(xì)胞,參與免疫應(yīng)答。
(4)可通過胎盤及粘膜:免疫球蛋白G(IgG)能通過胎盤進(jìn)入胎兒血流中,使胎兒形成自然被動
免疫。免疫球蛋白A(IgA)可通過消化道及呼吸道粘膜,是粘膜局部抗感染免疫的主要因素。
(5)具有抗原性:抗體分子是一種蛋白質(zhì),也具有刺機(jī)體產(chǎn)生免疫應(yīng)答的性能。不同的免疫球蛋白分子,各具有不同的抗原性。
(6)抗體對理化因子的抵抗力與一般球蛋白相同:不耐熱,60~70℃即被破壞。各種酶及能使蛋白質(zhì)凝固變性的物質(zhì),均能破壞抗體的作用??贵w可被中性鹽類沉淀。在生產(chǎn)上??捎昧蛩徜@或硫酸鈉從免疫血清中沉淀出含有抗體的球蛋白,再經(jīng)透析法將其純化。
抗體的制備過程:
1.免疫原:普通的大分子蛋白,通過分子克隆構(gòu)建載體并在大腸桿菌中進(jìn)行誘導(dǎo)表達(dá)獲得重組蛋白,純化鑒定后可直接作為免疫原;小分子蛋白或化合物等分子量小,需要偶聯(lián)載體對該分子進(jìn)行改造才能使其成為具有免疫原性的抗原,常見偶聯(lián)載體如BSA、OVA、HAS等。
2. 免疫動物:常用于制備抗血清的動物有豚鼠、家兔、雞、大小鼠等,大量生產(chǎn)時(shí)需要用到狗、綿羊、山羊等。
3. 免疫血清的收集:一般家兔、綿羊、山羊可采用靜動脈采血,家兔、豚鼠、大鼠、雞可采用心臟采血,家兔、山羊、綿羊可采用靜脈采血。
4. 免疫血清的純化與鑒定:得到的抗血清需要進(jìn)一步的純化,利用偶聯(lián)了抗原的親和柱進(jìn)行層析,具有高效,特異性強(qiáng),純度高的特定。接著要鑒定純化蛋白的含量、相對分子的質(zhì)量、純度以及特異性。
5.信號肽肽酶SPP抗體免疫血清的保存:抗體一般比較穩(wěn)定,在-80℃ ~-20 ℃可以保存約5年而不會影響效價(jià),而真空干燥保存時(shí)間可以更久。保存前需經(jīng)除菌并添加防腐劑。
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