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Ribose

Definition

noun

(1) An aldopentose (which means a five carbon sugar with an aldehyde functional group in its linear form) with a chemical formula C5H10O5

(2) A sugar monomer in RNA (Ribonucleic acid); also found in other metabolically important compounds, e.g. ribonucleotides, nucleic acids, riboflavin, etc.


Supplement

Its close relative is deoxyribose, which is a constituent of dna (deoxyribonucleic acid). The difference between them is that ribose has one more oxygen atom in its molecule than deoxyribose.


Word origin: German, alteration of English arabinuse, a kind of sugar

Chemical formula: C5H10O5

Compare: deoxyribose

Related terms:


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Re: The general theory of origin of life

... of space and DNA and RNA structures? I answer: - Direct. Grain of space corresponding rank is the direct parent of nucleotides - based on deoxyribose and ribose molecules. The book has a chapter "The nature, mechanism and principle of choice by Nature the molecule of deoxyribose for the ...

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by leniel
Mon May 06, 2013 7:55 pm
 
Forum: General Discussion
Topic: The general theory of origin of life
Replies: 13
Views: 13455

Re: Help - Why can't DNA be parallel?

... the 5'-3' strand. I understand this, otherwise there is no way they could base pair. However, they have NOT been flipped UPSIDE DOWN, unlike the riboses/phosphates which have been. The thing I don't understand (ish, now), is why you can't have that ribose/phosphate backbone flipped right side ...

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by keetner
Tue Oct 02, 2012 9:07 pm
 
Forum: Molecular Biology
Topic: Help - Why can't DNA be parallel?
Replies: 7
Views: 4930

Help - Why can't DNA be parallel?

... regards to DNA's directionality... Why can't it be parallel? I understand the reason why they're anti-parallel is because of the numbering of the ribose sugars. The thing I am confused about is when you look at the two strands, for the one from 3'-5', the base is flipped horizontally (so it can ...

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by keetner
Sun Sep 30, 2012 4:56 am
 
Forum: Molecular Biology
Topic: Help - Why can't DNA be parallel?
Replies: 7
Views: 4930

Please help me with comments on my experiment

... 18 seperate layer with transcription enzymes approx 15ml 19 combine 50ml of 32.5% uracil 32.5% adenine 17.5% cytosine 17.5% guanine 20 add 1 gram ribose 21 mix in 15ml first derived substance and 5ml second derived substance 22 quickly stir in 1,5 grams magnesium ions 23 let sit ten minutes 24 ...

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by Trenchent
Wed Jun 06, 2012 5:24 pm
 
Forum: General Discussion
Topic: Please help me with comments on my experiment
Replies: 1
Views: 2554

Do the simplest bacteria have ribosomes and helicase?

I don't think ATP is RNA, though it is based on adenine. I don't know the chemistry as well as I should but I think it's adenine + ribose + some phosphorus bonds. I think I understand the basic theory - it's the billions of years and huge numbers part that is giving me heartburn. Nucleotides ...

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by Daemach
Fri May 25, 2012 2:34 pm
 
Forum: Molecular Biology
Topic: Do the simplest bacteria have ribosomes and helicase?
Replies: 27
Views: 13353
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