>[...]
>>>>Chris: Self-replicating molecules are not exactly uncommon.
>>>>DNAunion: I am unaware of any known natural self-replicating
molecule(they are very uncommon in nature, if they exist at all). Note the
even DNA is not
self-replicating (I bring this up because it is sometimes incorrectly stated
that DNA replicates itself).
>>>Susan: I happen to have just posted material on this subject to another
list.
go to www.google.com and type in "self-replicating molecules"
-------
http://discuss.foresight.org/critmail/sci_nano.88-94/0799.html
An article on page 28 of the December issue of Discover magazine discusses
the work of MIT chemist Julius Rebek. Rebek has developed a synthetic organic
molecule capable of reproducing itself. This molecule, named amino adenosine
triacid ester (AATE), consists of an amine and an ester, as the name implies.
When added to a chloroform solution of amines and esters, AATE captures the
components needed to replicate itself. Thermal motion of the solution then
separates the
original molecule from the copy. Under ideal conditions, AATE can reproduce
itself 1,000,000 times in one second. Rebek is currently working on more
sophisticated self-replicating molecules.
-------
a more detailed report of the above:
http://w3.mit.edu/newsoffice/tt/1990/may09/23124.html
---------
******************
******************
DNAunion: I noticed you stated the replicator was *SYNTHESIZED*. It is not
natural, but made by humans.
******************
******************
>>>Susan: and a later study on self-replicating peptides:
http://platon.ee.duth.gr/data/maillist-archives/deukalion/1998-9/msg00036.html
-----------
*****************
*****************
DNAunion: There was not enough information on that page to tell for sure
whether or not the peptides were naturally-occurring or manufactured, but I
assume they were the latter for two reasons.
(1) This quote from the page: "Self-replication has been demonstrated in
synthetic chemical systems based on oligonucleotides peptides and
complementary molecules without natural analogues."
(2) The peptides involved in the earlier - and simpler - experiments dealing
with a single set of "self-replicating" peptides (15-aa, 17-aa, and full
32-aa parts) were designed and manufactured, not naturally-occuring.
attached mail follows:
>[...]
>>>>Chris: Self-replicating molecules are not exactly uncommon.
>>>>DNAunion: I am unaware of any known natural self-replicating molecule
(they are very uncommon in nature, if they exist at all). Note the even DNA
is not
self-replicating (I bring this up because it is sometimes incorrectly stated
that DNA replicates itself).
>>>Susan: I happen to have just posted material on this subject to another
list.
go to www.google.com and type in "self-replicating molecules"
-------
http://discuss.foresight.org/critmail/sci_nano.88-94/0799.html
An article on page 28 of the December issue of Discover magazine discusses
the work of MIT chemist Julius Rebek. Rebek has developed a synthetic organic
molecule capable of reproducing itself. This molecule, named amino adenosine
triacid ester (AATE), consists of an
amine and an ester, as the name implies. When added to a chloroform solution
of amines and esters, AATE captures the components needed to replicate
itself. Thermal motion of the solution then separates the
original molecule from the copy. Under ideal conditions, AATE can reproduce
itself 1,000,000 times in one second. Rebek is currently working on more
sophisticated self-replicating molecules.
-------
a more detailed report of the above:
http://w3.mit.edu/newsoffice/tt/1990/may09/23124.html
---------
******************
******************
DNAunion: I noticed you stated the replicator was *SYNTHESIZED*. It is not
natural, but made by humans.
******************
******************
>>>Susan: and a later study on self-replicating peptides:
http://platon.ee.duth.gr/data/maillist-archives/deukalion/1998-9/msg00036.html
-----------
*****************
*****************
DNAunion: There was not enough information on that page to tell for sure
whether or not the peptides were naturally-occurring or manufactured, but I
assume they were the latter for two reasons.
(1) This quote from the page: "Self-replication has been demonstrated in
synthetic chemical systems based on oligonucleotides peptides and
complementary molecules without natural analogues."
(2) The peptides involved in the earlier - and simpler - experiments dealing
with a single set of "self-replicating" peptides (15-aa, 17-aa, and full
32-aa parts) were designed and manufactured, not naturally-occuring.
This archive was generated by hypermail 2b29 : Mon Nov 20 2000 - 16:35:29 EST