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Advances In "Micro" RNA Exploring Process Of Life
Science Daily ^
| 9/23/2002
Posted on 09/23/2002 11:51:18 AM PDT by sourcery
click here to read article
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1
posted on
09/23/2002 11:51:18 AM PDT
by
sourcery
To: sourcery
read later
To: PatrickHenry
Do you have a biogenetics ping list?
3
posted on
09/23/2002 12:05:39 PM PDT
by
balrog666
To: VadeRetro; jennyp; Junior; longshadow; *crevo_list; RadioAstronomer; Scully; Piltdown_Woman; ...
RNA world ping.
To: sourcery
Before it's pulled bump.
5
posted on
09/23/2002 1:39:58 PM PDT
by
js1138
To: js1138
"Before it's pulled"? Oh, ye of little faith... ;)
To: PatrickHenry
"Mark for later" bump.
7
posted on
09/23/2002 1:57:57 PM PDT
by
VadeRetro
To: general_re
Is gravity low today? The science threads are dying of natural causes. Of course they are way over my head and don't have any sexy immediate implications.
8
posted on
09/23/2002 1:59:36 PM PDT
by
js1138
To: js1138
9
posted on
09/23/2002 2:05:52 PM PDT
by
JediGirl
To: js1138
To: sourcery
OSU was recently the recipient of a 4-year, $1.7 million grant from the National Science Foundation This would be the reason for the article. A little PR. Publish or perish.
To: sourcery
Here us the actual abstract from the Science article
Science 2002 Sep 20;297(5589):2053-6
Cleavage of Scarecrow-like mRNA targets directed by a class of
Arabidopsis miRNA.
Llave C, Xie Z, Kasschau KD, Carrington JC.
Center for Gene Research and Biotechnology, and Department of Botany and Plant Pathology,
Oregon State University, Corvallis, OR 97331, USA.
Micro-RNAs (miRNAs) are regulatory molecules that mediate effects by interacting with
messenger RNA (mRNA) targets. Here we show that Arabidopsis thaliana miRNA 39 (also
known as miR171), a 21-ribonucleotide species that accumulates predominantly in inflorescence
tissues, is produced from an intergenic region in chromosome III and functionally interacts with
mRNA targets encoding several members of the Scarecrow-like (SCL) family of putative
transcription factors. miRNA 39 is complementary to an internal region of three SCL mRNAs.
The interaction results in specific cleavage of target mRNA within the region of complementarity,
indicating that this class of miRNA functions like small interfering RNA associated with RNA
silencing to guide sequence-specific cleavage in a developmentally controlled manner.
To: tallhappy; js1138
Well, the science threads wouldn't be dying if they all referred to cleavage.
Cleavage of Scarecrow-like mRNA targets...
Scarecrow cleavage -- better than nothing, I guess.....
13
posted on
09/23/2002 2:46:28 PM PDT
by
r9etb
To: r9etb
Science threads die because a bunch of ignorant religious zealots turn it in to some sort of proselyization for their evolutionist religion.
It turns interesting threads in to boring beat-a-dead-horse threads.
To: r9etb
Also, how much is there to say? These miRNA's are great findings and indicate a new way to regulate gene expression. It is a fine tuning of the system and the extent of it is still hardly known.
In this system, it is quite interesting that the genes they are regulating by cleavage are themselves transcription factors -- ie they themselves are genes that regulate gene expression.
It's a quick way to turn off the genes regulated by scarecrows.
To: tallhappy
I find that cleavage piques my interest in genetic expression....
(OK, so I'm in the gutter again.)
16
posted on
09/23/2002 3:04:03 PM PDT
by
r9etb
To: tallhappy
Science threads die because a bunch of ignorant religious zealots turn it in to some sort of proselyization for their evolutionist religion. Well, thanks for kicking things off, Mr Shortgrumpy!
To: tallhappy
Science threads die because a bunch of ignorant religious zealots turn it in to some sort of proselyization for their evolutionist religion.
I am sure that you actually meant to say.....
Science threads die because a bunch of ignorant religious zealots turn it in to some sort of prostelyization for their Creationist myth.
Oops, there I went and did it.
18
posted on
09/23/2002 4:12:24 PM PDT
by
Aric2000
Comment #19 Removed by Moderator
To: PatrickHenry
You realize, of course, that this discovery totally refutes evolution.
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