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Thymidine

Definition

noun

A pyrimidine nucleoside that has thymine bound to a deoxyribose sugar.


Supplement

Thymidine is in fact a deoxyribonucleoside. The prefix deoxy- is often left out since there are no precursors of thymine nucleotides involved in RNA synthesis, only DNA synthesis. Hence, it is sometimes simply called thymidine.


IUPAC name: 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Molecular formula: C10H14N2O5

Synonyms:

See also: nucleoside.


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Cell Cycle Question

Hi, I'm studying this practice test and it has this question about radioactive thymidine exposure during the cell cycle. I understand that it takes 1 hour for Radioactive thymidine to be first detected due to the length of G2, which, paired with S phase, is when ...

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by bytesyzechic
Wed Nov 07, 2012 2:10 am
 
Forum: Cell Biology
Topic: Cell Cycle Question
Replies: 1
Views: 1509

Re: Spectrophotometry - why can't some products be read?

... bonds, while higher-energy photons can trigger rearrangements in electron levels or even shifting in bonds (like the UV-induced dimerization of thymidine that can lead to skin cancers). At x-ray energies you can remove electrons from inner shells of atoms. It is the structure of the molecule ...

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by jonmoulton
Thu Nov 01, 2012 4:13 pm
 
Forum: Molecular Biology
Topic: Spectrophotometry - why can't some products be read?
Replies: 2
Views: 2205

Is protein degrade by UV ?

Yeah, it will be bigger problems DNA damage for the microbes, because thymidine forms dimers etc. However, proteins get damaged as well, they can get cross-linked by UV.

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by JackBean
Mon Sep 03, 2012 8:39 am
 
Forum: Cell Biology
Topic: Is protein degrade by UV ?
Replies: 3
Views: 3396

Re: Is DNA living or non-living thing?? get the answer here

SORRY, but DNA is NOT a chain of Proteins and Polypeptide Bonds. DNA is a chain of organic bases Cytosine, Guanine, Adensine, Thymidine linked together as rungs of a ladder by Phosphodiester bonds to Ribosome sugars. The only significant Proteins are the Histone Octamers that package ...

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by eddie6893
Sat Jan 29, 2011 12:27 pm
 
Forum: Molecular Biology
Topic: Is DNA living or non-living thing?? get the answer here
Replies: 23
Views: 46360

Mutated cells

thymidine dimers are repaired by DNA repaire system

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by JackBean
Mon Dec 13, 2010 2:22 pm
 
Forum: Cell Biology
Topic: Mutated cells
Replies: 11
Views: 4055
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