簡要描述:眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143抗體注意事項;This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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商品屬性:
貨號 | 產(chǎn)品名稱 | 規(guī)格 |
GOY-01K1921 | 眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143抗體 | 50ul |
GOY-01K1921 | 眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143抗體 | 100ul |
GOY-01K1921 | 眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143抗體 | 200ul |
英文名稱: OA1
中文名稱: 眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143抗體
別 名;ALBINISM OCULAR TYPE I; G protein coupled
receptor 143; G-protein coupled receptor 143; GP143_HUMAN; GPR143; MOA1;
NETTLESHIP FALLS TYPE OCULAR ALBINISM; Ocular albinism type 1 protein; Ocular
albinism type 1 protein homolog; Ocular albinism1 Nettleship Falls type.
研究領(lǐng)域;細(xì)胞生物 神經(jīng)生物學(xué) G蛋白偶聯(lián)受體 G蛋白信號
抗體來源;Rabbit
克隆類型;Polyclonal
交叉反應(yīng);(predicted: Human, Mouse, Rat,
Chicken, Dog, Pig, Cow, Horse, Sheep, )
產(chǎn)品應(yīng)用;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;44kDa
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 OA1: 201-300/404
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;This product as supplied is
intended for research use only, not for use in human, therapeutic or diagnostic
applications.
產(chǎn)品介紹 G protein-coupled receptors
(GPRs or GPCRs), are members of the largest protein family and play a role in
many different stimulus-response pathways. G-protein coupled receptors mediate
extracellular signals into intracellular signals (G-protein activation). They
respond to a great variety of signaling molecules, including hormones,
neurotransmitters and other proteins and peptides. GPR143, also designated
ocular albinism type 1 protein (OA1), is detected exclusively in pigment cells.
OA1, which is a multi-pass membrane protein, is a melanosomal protein expressed
primarily in pigment cells. Defects in the gene encoding for OA1 cause ocular
albinism, an X-linked disorder mainly characterized by retinal hypopigmentation
and visual impairment.
Function:
Receptor for tyrosine, L-DOPA and dopamine. After binding to L-DOPA, stimulates Ca(2+) influx into the cytoplasm, increases secretion of the neurotrophic factor SERPINF1 and relocalizes beta arrestin at the plasma membrane; this ligand-dependent signaling occurs through a G(q)-mediated pathway in melanocytic cells. Its activity is mediated by G proteins which activate the phosphoinositide signaling pathway. Plays also a role as an intracellular G protein-coupled receptor involved in melanosome biogenesis, organization and transport.
實驗流程:
(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。抗體可被中性鹽類沉淀。在生產(chǎn)上常可用硫酸銨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.眼部白化病相關(guān)蛋白OA1/蛋白偶聯(lián)受體143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,而真空干燥保存時間可以更久。保存前需經(jīng)除菌并添加防腐劑。
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