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349592850鐵桿木蟲 (正式寫手)
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[求助]
怎樣避免蛋白交聯(lián)呢?
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| 請問一下,我用巰基乙胺去修飾蛋白,蛋白的巰基發(fā)生了交聯(lián),除了通過在無氧的條件下進(jìn)行反應(yīng)可以避免蛋白交聯(lián),還有什么別的方法嗎?另:修飾后的蛋白上的巰基后期還會用到!謝謝大家! |
專家顧問 (正式寫手)
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專家經(jīng)驗(yàn): +40 |
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you could also consider to add reducing agent into your working solution, such as TCEP. besides, lower pH value(3-4) would lower the possibility of disulfide recombination due to protonation of sulfhydryl groups. |

鐵桿木蟲 (正式寫手)
專家顧問 (正式寫手)
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專家經(jīng)驗(yàn): +40 |
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TCEP can even catalyze certain reactions. If you rely on oxidation, -SH groups can be reused crosslinking when H2O2 is more than TCEP. But be careful with the possible toxicity of TCEP. |

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