• 提示：詳情請下載說明書。

• 介紹：轉(zhuǎn)鐵蛋白是血漿中主要的鐵傳遞蛋白，為細(xì)胞分化和細(xì)胞代謝提供所需的鐵。研究發(fā)現(xiàn) 所有的細(xì)胞生長都離不開轉(zhuǎn)鐵蛋白。不但維持正常的細(xì)胞代謝依賴于以生物活性形態(tài)存在的 鐵，鐵還是一些酶的輔助因子，比如 RNA 聚合酶，DNA 合成酶。同時也是血紅蛋白的重要 組成部分。

• 轉(zhuǎn)鐵蛋白是血漿糖蛋白，從血漿中分離而來，牛轉(zhuǎn)鐵蛋白以兩種分子形態(tài)存在，分子量 分別為 74KD 和 78KD。每個轉(zhuǎn)鐵蛋白分子通過 C 端和 N 端結(jié)構(gòu)位點(diǎn)可以結(jié)合兩分子鐵離子， 所以轉(zhuǎn)鐵蛋白以三種形態(tài)存在：脫鐵（不結(jié)合鐵離子），飽和鐵（結(jié)合兩分子鐵離子）和部 分飽和，在生理情況下，轉(zhuǎn)鐵蛋白分子僅有 1/3 被鐵飽和。

• 使用說明： 轉(zhuǎn)鐵蛋白對于絕大部分細(xì)胞系在無血清培養(yǎng)基中生長是必需的，研究表明飽和鐵形態(tài)的 轉(zhuǎn)鐵蛋白對于促進(jìn)細(xì)胞生長是最有效的形態(tài)。對于雜交瘤，黏連細(xì)胞和懸浮細(xì)胞系，在細(xì)胞 培養(yǎng)過程中，應(yīng)保持培養(yǎng)基中轉(zhuǎn)鐵蛋白濃度在 0.5-100μ g/ml。針對不同的細(xì)胞系，需要選 擇最合適的濃度。

• 轉(zhuǎn)鐵蛋白凍干粉需要保存在冷藏狀態(tài)下，使用之前再溶解。一般用 PBS 或者其它合適 的溶劑在室溫下將轉(zhuǎn)鐵蛋白凍干粉溶解成儲液，濃度在 0.5-2.0mg/ml,然后用無菌濾膜進(jìn)行過 濾，濾液可在無菌條件下 2-8℃保存 30 天。

• 外觀： 凍干粉末

• 儲存條件： 2-8℃

• 注意：部分產(chǎn)品我司僅能提供部分信息，我司不保證所提供信息的權(quán)威性，僅供客戶參考交流研究之用。

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輸入產(chǎn)品批號：

本計算器可幫助您計算出特定溶液中溶質(zhì)的質(zhì)量、溶液濃度和體積之間的關(guān)系，公式為：

質(zhì)量 (mg) = 濃度 (mM) x 體積 (mL) x 分子摩爾量 (g/mol)

• pg ng μg mg g kg =
  fM pM nM μM mM M *
  nL μL mL L *