此R非彼R。這種移花接木、瞞天過海的事你也信?

來源: fuz 2021-03-09 10:02:47 [] [博客] [舊帖] [給我悄悄話] 本文已被閱讀: 次 (1942 bytes)
本文內容已被 [ fuz ] 在 2021-03-09 10:23:19 編輯過。如有問題,請報告版主或論壇管理刪除.

知道人體內有多少種mRNA麽?

https://www.qiagen.com/us/resources/faq?id=06a192c2-e72d-42e8-9b40-3171e1eb4cb8&lang=en

How much RNA does a typical mammalian cell contain? 
FAQ ID -2946

 

The RNA content and RNA make up of a cell depend very much on its developmental stage and the type of cell. To estimate the approximate yield of RNA that can be expected from your starting material, we usually calculate that a typical mammalian cell contains 10–30 pg total RNA. 

The majority of RNA molecules are tRNAs and rRNAs. mRNA accounts for only 1–5% of the total cellular RNA although the actual amount depends on the cell type and physiological state. Approximately 360,000 mRNA molecules are present in a single mammalian cell, made up of approximately 12,000 different transcripts with a typical length of around 2 kb. Some mRNAs comprise 3% of the mRNA pool whereas others account for less than 0.1%. These rare or low-abundance mRNAs may have a copy number of only 5–15 molecules per cell.

 

所有跟帖: 

謝謝夫子解惑,不過還是沒明白,沒覺得和文章內容矛盾啊? -nowayitsover- 給 nowayitsover 發送悄悄話 nowayitsover 的博客首頁 (94 bytes) () 03/09/2021 postreply 16:22:05

主貼第一句是啥意思?:“ mRNA 疫苗的作用,把mRNA釋放出來了,可能增加癌症風險”。你這麽寫,不是張冠李戴,誤導大眾麽? -fuz- 給 fuz 發送悄悄話 fuz 的博客首頁 (0 bytes) () 03/09/2021 postreply 16:26:28

OK,我改一下,原先說的不對。 -nowayitsover- 給 nowayitsover 發送悄悄話 nowayitsover 的博客首頁 (0 bytes) () 03/09/2021 postreply 16:48:17

上麵回帖裏已經講得很明白了,每個細胞中有成千上萬種mRNA, 各有個的作用,怎麽可以混為一談 -fuz- 給 fuz 發送悄悄話 fuz 的博客首頁 (0 bytes) () 03/09/2021 postreply 16:39:19

仔細讀了一下,文章的作者問的是這個注射進去的mRNA會不會致癌,他的邏輯是一般的mRNA都有致癌作用。 -nowayitsover- 給 nowayitsover 發送悄悄話 nowayitsover 的博客首頁 (0 bytes) () 03/09/2021 postreply 16:55:51

我覺得文章裏的這個問題很valid,隻是現在不可能有答案。 -nowayitsover- 給 nowayitsover 發送悄悄話 nowayitsover 的博客首頁 (0 bytes) () 03/09/2021 postreply 21:28:16

請您先登陸,再發跟帖!

發現Adblock插件

如要繼續瀏覽
請支持本站 請務必在本站關閉/移除任何Adblock

關閉Adblock後 請點擊

請參考如何關閉Adblock/Adblock plus

安裝Adblock plus用戶請點擊瀏覽器圖標
選擇“Disable on www.wenxuecity.com”

安裝Adblock用戶請點擊圖標
選擇“don't run on pages on this domain”