單克隆抗體測序
技術原理
單克隆抗體是由單一B細胞克隆產生的高度均一、僅針對某一特定抗原表位的抗體。它在藥物研發、診斷試劑開發中扮演了關鍵的角色。抗體分子本的一級結構,特別是它的CDR區域氨基酸序列是其發揮生物學功能的核心。因此,對單抗分子進行準確快速的鑒定分析具有重要的意義。通過先進的高分辨率質譜儀Obitrap Fusion Lumos,結合豐富的生物信息學分析經驗,可以對不同亞型抗體(例如IgG和IgM)和不同類型抗體(熒光偶聯抗體,固定化抗體,不同物種的抗體)的一級序列信息進行快速準確的分析。
單克隆抗體測序技術原理圖
技術特點
l 不基于核酸測序與雜交瘤細胞;
l 獲得抗體的輕重鏈完整氨基酸,可以直接表達;
l 能夠區分I/L;
l 周期快(20天,加急2周出結果)
樣品要求
l 純度>95%(SDS-PAGE膠圖,HPLC或者是質譜分子量證據,可提供純度更低的樣品解析服務,具體電聯);
l 只需要少至100ug樣品(可提供更低樣品量的解析服務,具體電聯);
費用返還保證
以下結果,證明拼接已完成:
1、平均達到40乘以上的覆蓋度;
2、主要的信號都能夠明確解釋;
3、CDR區至少有六條以上的譜圖佐證;
保證:表達與活性驗證不理想時,協助客戶售后,完成進一步的表達驗證工作;最終售后失敗時返還該抗體合同總費用70%。
注意事項
l 請使用足量的干冰運輸,并盡量選用較快的郵遞方式,以降低運輸過程中樣品降解的可能性。
項目報告
l 實驗步驟
l 質譜參數
l 質譜譜圖
l 單抗分子序列的詳細信息
單克隆抗體測序一站式服務
l 您只需下單-寄送樣品
l 明德正康為您完成-樣品處理-上機分析-數據分析-項目報告
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