上海研盟生物科技有限公司Integrin alpha 1抗體-整合素α1抗體*，主要應(yīng)用于WB、IHC、IF、ELISA、流式細(xì)胞術(shù)等實驗中。說明書隨貨發(fā)送，您也可以直接我司在線客服索取。客服
簡單介紹：
中文名稱：整合素α1抗體
英文名稱：Anti-Integrin alpha 1
產(chǎn)品編號：BYK-2095R
產(chǎn)品別名：CD 49a; CD49a; CD49 antigen-like family member A; CD49a; CD49a antigen; Integrin alpha-1; ITA1_HUMAN; Itga 1; ITGA1; Laminin and collagen receptor; Very late activation protein 1; VLA 1; VLA-1; VLA1.
產(chǎn)品規(guī)格：0.1ml、0.2ml、1ml
產(chǎn)品用途：科研實驗
產(chǎn)品價格：請報價
說明書：請?zhí)砑涌头苯铀魅?/p>
抗體來源：該指標(biāo)有兩種產(chǎn)品，一種是兔來源抗體，一種是鼠來源抗體
克隆類型：兔來源為多克隆抗體，鼠來源單克隆抗體
交叉反應(yīng)：請索取說明書查看
性 狀：Lyophilized or Liquid
濃 度：1mg/1ml
亞 型:IgG
純化方法: affinity purified by Protein A
儲 存 液: 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol
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.
Integrin alpha 1抗體-整合素α1抗體產(chǎn)品介紹：Integrins are important extracellular matrix (ECM) receptor proteins located on cell surfaces. They are hetrodimers composed of an alpha and a beta transmembrane glycoprotein subunit. Around twenty two different integrins (different alpha/ beta subunit combinations) are found in nature. Integrins are generally present in high concentrations at the cell surface, but, unlike most other cell surface receptors, they bind ligands with very low affinity. Due to their weak individual binding, integrins need to cluster and bind in groups in order to effectively bind the ECM. Integrins bind many different ligands including laminin. Each integrin is made up of a large N terminal extracellular domain that binds the ECM ligand and a small C terminal cytoplasmic domain that mediates interaction with the actin cytoskeleton and signaling function. Alpha 1 integrin along with alpha 2, alpha L and alpha M has a unique inserted domain. Integrin alpha 1 is a receptor for laminin and collagen. The alpha1 subunit is also known as CD49a. CD49a associates with CD29 (beta 1 integrin), to form an alpha1 beta1 heterodimer, identified as the rat homologue to VLA1, which is involved in cellular adhesion to laminin and collagen.
多肽的溶解與保存
一、凍干多肽的溶解
1、多肽溶解的主要問題是二級結(jié)構(gòu)的形成。雖然疏水肽鏈二級結(jié)構(gòu)的形成更明顯，但除zui短的肽鏈外，此現(xiàn)象產(chǎn)生在幾乎所有肽鏈,與極性無關(guān)。所以，溶解多肽的*個原則是使用無菌蒸餾水或去離子水，當(dāng)然無氧水。多肽溶液可能遇到細(xì)菌降解，為防止此情況的發(fā)生，應(yīng)溶解在無菌的蒸餾水中或用0.45或0.2孔徑的濾膜過濾除菌。含有Cys、Met、Trp的多肽很容易氧化，應(yīng)溶于無氧的水中，無氧水可通過注入惰性氣體（氮、氦、氬）減壓除氣得到；
2、若多肽不溶于純水，超聲處理有助于打碎顆粒并增加溶解度。注意:超聲處理會引起溶液發(fā)熱或多肽降解；
3、若多肽含有多個堿性氨基酸，使用（1-10%）的乙酸水溶液：對于疏水性強的多肽，應(yīng)使用50%的乙酸；
4、若多肽中含有大量酸性氨基酸，可用氨溶液（1-10%）或乙酸乙基*或重碳酸鹽等揮發(fā)性的堿性緩沖液溶解。pH值在層析前必須調(diào)整；
5、異丙醇和乙腈能溶解中等大小的多肽。若肽要上柱，有機溶劑的量必須很少否則將嚴(yán)重影響停留時間；
6、若多肽因含有Val、Leu、Met、Phe、Tyr、Ala等芳香鏈而高度疏水、或為中性肽時，DMF或DMSO等膜變性劑的使用，有利于多肽的溶解：
a.高濃度模變性劑通過破壞多肽的二級結(jié)構(gòu)而助溶；
b.膜變性劑適于多肽分析液的制備，但可能會對其生物活性的研究工作造成干擾；
c.DMF是變性劑（zui高濃度可達(dá)30%），滴加至多肽溶解；
d.反相層析法時，DMF將與洗脫液前鋒一起流出，根據(jù)入量的多少，峰值可能很高。大多數(shù)肽能在大量DMF流出后幾分鐘內(nèi)流出，若肽鏈很小，洗脫太早，多肽的量將很低。
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