[求助] [physiology]可為hnRNA?

The heterogeneous nuclear RNA
(hnRNA)molecules synthesized by the polymerase
have a characteristic “cap” at their 5!
end and a polyadenine “tail” (A–A–A–.. .) at the
3! end (!D). Once synthesized, they are immediately
“enveloped” in a protein coat, yielding
heterogeneous nuclear ribonucleoprotein
(hnRNP) particles.The primary RNA or premRNA
ofhnRNA contains both coding
sequences (exons) and non-coding sequences
(introns).

原帖由 dolphin_ice 於 11/7/2008 12:26 發表

PremRNA OF hnRNA?
我查Wikipedia可在說hnRNA就是PremRNA!
http://en.wikipedia.org/wiki/HnRNA

會否像cytosol 和cytoplasm般是易混淆字?
如是者, 分別是?

還是只是打錯字, 把or 打成of?

Wikipedia is a good place to start your research/ finding, but it must NOT be your terminal.

原帖由 fish 於 11/7/2008 02:06 PM 發表


由於絕大多數hnRNA  都是 pre-mRNA,所以在某程度上交換來用的問題不大
(hnRNA vs pre-mRNA 比cytosol VS cytoplasm的分別更細微啦)
defn:
http://www.biochem.northwestern.edu/holmgren/Glossary/Definiti ...

A diverse assortment of RNA types found in the nucleus, including mRNA precursors (pre-mRNA) and other types of RNA.

原帖由 dolphin_ice 於 11/7/2008 15:25 發表

不知如何查得為何叫 heterogeneous nuclear mRNA呢?
它和 heterogeneous又有何relationship? (nuclear 是因為它的位置在nuclei 裡嗎?)
何時變成pre-mRNA, 還是 pre-mRNA是hnRNA的一種?

另外,
求.pdf  format 的Medical Biochem, bacteriology, virology, parasitology
不知哪裡可以download呢? :p
你有讀這些嗎?

原帖由 fish 於 11/7/2008 03:53 PM 發表


沒想過heterogeneous 的由來，但我會認為是因為含有 poly A tail 及5' cap等物所以才叫 heterogeneous
我的意思是pre-mRNA 是 hnRNA的一種，即hnRNA是個統稱

我校的database是" for students only"....要有a ...

原帖由 dolphin_ice 於 11/7/2008 16:00 發表

Drug synthesis and how drub works <--是要org chem 很強的嗎? (好奇而已)

原帖由 fish 於 11/7/2008 11:15 PM 發表


Pharmacy 是很重organic chem的，其分支亦是

那本hide掉的到我需要時才拿吧，現在沒有甚麼時間去理別的東東:hug:
先謝一個