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簡(jiǎn)要描述：DNA結(jié)合蛋白Mel18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.
產(chǎn)品型號(hào)：GOY-01K5754廠商性質(zhì)：科研更新時(shí)間：2023-10-24 00:00:00訪 問 量：147產(chǎn)品分類
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商品屬性：
貨號(hào) | 產(chǎn)品名稱 | 規(guī)格 |
GOY-01K5754 | DNA結(jié)合蛋白Mel18抗體 | 50ul |
GOY-01K5754 | DNA結(jié)合蛋白Mel18抗體 | 100ul |
GOY-01K5754 | DNA結(jié)合蛋白Mel18抗體 | 200ul |
英文名稱: Mel18
中文名稱: DNA結(jié)合蛋白Mel18抗體
別 名；DNA binding protein Mel 18; DNA-binding
protein Mel-18; Mel 18; MEL-18; MGC10545; PCGF 2; PCGF2; PCGF2_HUMAN; Polycomb
group ring finger 2; Polycomb group RING finger protein 2; Ring finger protein
110; RNF 110; RNF110; Zinc finger protein 144; ZNF 144; ZNF144.
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) 泛素
抗體來源；Rabbit
克隆類型；Polyclonal
交叉反應(yīng)；(predicted: Human, Mouse, Rat,
Dog, Pig, Cow, Horse, Rabbit, Sheep, Chimpanzee, )
產(chǎn)品應(yīng)用；ELISA=1:5000-10000
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.
理論分子量；38kDa
細(xì)胞定位；細(xì)胞核
性 狀；Liquid
濃 度；1mg/ml
免 疫 原；KLH conjugated synthetic
peptide derived from human Mel18: 281-344/344
亞 型；IgG
純化方法；affinity purified by Protein A
緩 沖 液；0.01M TBS(pH7.4) with 1% BSA,
0.03% Proclin300 and 50% Glycerol.
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.
產(chǎn)品介紹 The protein encoded by this
gene contains a RING finger motif and is similar to the polycomb group (PcG)
gene products. PcG gene products form complexes via protein-protein interaction
and maintain the transcription repression of genes involved in embryogenesis, cell
cycles, and tumorigenesis. This protein was shown to act as a negative
regulator of transcription and has tumor suppressor activity. The expression of
this gene was detected in various tumor cells, but is limited in neural organs
in normal tissues. Knockout studies in mice suggested that this protein may
negatively regulate the expression of different cytokines, chemokines, and
chemokine receptors, and thus plays an important role in lymphocyte
differentiation and migration, as well as in immune responses. [provided by
RefSeq, Jul 2008]
Subunit:
Transcriptional repressor. Binds specifically to the DNA sequence 5'-GACTNGACT-3'. Has tumor suppressor activity. May play a role in control of cell proliferation and/or neural cell development. Regulates proliferation of early T progenitor cells by maintaining expression of HES1. Also plays a role in antero-posterior specification of the axial skeleton and negative regulation of the self-renewal activity of hematopoietic stem cells. Component of the Polycomb group (PcG) multiprotein PRC1 complex, a complex required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility.
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(yè)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(dòng)
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(duì)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(duì)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(dòng)物：常用于制備抗血清的動(dòng)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.DNA結(jié)合蛋白Mel18抗體免疫血清的收集：一般家兔、綿羊、山羊可采用靜動(dòng)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(duì)分子的質(zhì)量、純度以及特異性。
5.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(huì)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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