from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white crystalline nucleoside, C9H13N3O5, composed of one molecule each of cytosine and ribose.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A nucleoside consisting of cytosine linked to ribose
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a nucleoside component of DNA; composed of cytosine and deoxyribose
Compared to human milk, cow's milk has lower levels of nucleotide as uridine, inosine, and cytidine.
Atomic Energy Commission at that time, otherwise they certainly would have done the obvious follow-up experiment, using uniformly U-14C labeled cytidine themselves.
Therefore by both criteria it appeared certain that the 14C reached the deoxyribose directly from the cytidine.
It was obvious for me to ask if there might be direct utilization of the whole of cytidine, ribose and all, in the biosynthesis of deoxycytidine.
Although U-14C cytidine did not label the deoxyribose of E. coli DNA, I found the deoxycytidine of DNA of rat organs to be almost uniformly labeled.
It also shares similarities with the corresponding domains of a number of other cytidine deaminases, which belong to the same protein family as AID, but have very different functions another great story, for another day.
Evolution of class switch recombination function in fish activation-induced cytidine deaminase, AID.
Agmatine-conjugated cytidine in a tRNA anticodon is essential for AUA decoding in archaea Rethinking screening
Footprinting experiments revealed protection of a single cytidine nucleotide (C3993) in the E-site of the 60S ribosomal subunit, thus defining a common binding pocket for the two inhibitors in the ribosome.
Activation-induced cytidine deaminase (AID) is a B-cell-specific DNA mutator that plays a key role in the formation of the secondary antibody repertoire in germinal center B cells.
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