Dictionary » P » Polymerases

Polymerases

polymerase

(Science: enzyme) enzymes that catalyse the synthesis of nucleic acids on preexisting nucleic acid templates, assembling rNA from ribonucleotides or dNA from deoxyribonucleotides.


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DNA traversal

... You mean how fast DNA polymerase moves along DNA? That's mostly dependent on the inherent properties of each DNA polymerase, and for some polymerases ( the main one for DNA replication included) it is greatly increased by the sliding clamp.

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by MrMistery
Thu Mar 26, 2009 1:56 am
 
Forum: Molecular Biology
Topic: DNA traversal
Replies: 4
Views: 394

Re:

... strands when they are unwound, NOT transcription. ;) Which is referred to as replication and is the normal process of DNA production using DNA polymerases. Actually it is possible to produce DNA from transcription, via reverse transcription. This happens when certain viruses such as HIV invades ...

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by Sepals
Wed Mar 11, 2009 2:11 pm
 
Forum: Molecular Biology
Topic: DNA and RNA
Replies: 6
Views: 1223

Re: rna interference

... my understanding of the RNAi system. VIral RNA may be manufactured as two independent complementary strands by using the vial RNA-directed RNA polymerases. However, when RNAi is produced from animal genomes, the double-stranded RNA is manufactured by cleaving a hairpin twice. In animals, the ...

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by jonmoulton
Mon Feb 09, 2009 5:17 pm
 
Forum: Molecular Biology
Topic: rna interference
Replies: 4
Views: 734

Archaea vs Bacteria

... glycerol attached at both ends. -glycerol in archean cell membranes is in a different stereoisomer than in every other cell -archea have 3 RNA polymerases like eukaryotes, bacteria have only one -there are numerous cases of introns in archea, whereas in bacteria these are very rare -the two ...

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by MrMistery
Wed Nov 12, 2008 12:11 am
 
Forum: Microbiology
Topic: Archaea vs Bacteria
Replies: 6
Views: 3637

Interesting question....

... stahl experiment only bands of heavy DNA were isolated in repetitive cell divisions.The organism appeared to have all the types of nucleic acid polymerases and other enzyme but was found lacking pol 111.An enzyme of unknown function necessary for DNA replication that required NADPH as a cofactor ...

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by khushi
Thu Oct 30, 2008 3:12 am
 
Forum: Molecular Biology
Topic: Interesting question....
Replies: 1
Views: 472
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