Difference Between Deoxyribose and Ribose

Main Difference – Deoxyribose vs Ribose

Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are essential biological molecules of life on Earth. Each and every living creature is using DNA as their genetic backbone. DNA can be found in cell nucleus in Eukaryotes, and it directs all cellular activity by allocating it to RNA. RNA has diverse biological roles in the human body such as in coding, decoding, regulation, and expression of genes. It transmits messages out of the cell nucleus to the cytoplasm. Ribose can be found in RNA, and it is an organic compound or precisely, a pentose monosaccharide. Deoxyribose is a monosaccharide that participates in the formation of DNA. It is a deoxy sugar that is derived from the sugar ribose by the loss of an oxygen atom. This is the main difference between Deoxyribose and Ribose. In this article, let’s elaborate the difference between ribose and deoxyribose in terms of their uses as well as chemical and physical properties.

What is Ribose

Ribose is a pentose monosaccharide or simple sugar with the chemical formula of C5H10O5.  It has two enantiomers; D-ribose and L-ribose. However, D-ribose occurs widely in nature, but L-ribose does not originate in nature. Ribose was first discovered by Emil Fischer in 1891. The ribose β-D-ribofuranose is considered as the backbone of RNA. It is linked to deoxyribose, which is originated in DNA. In addition, phosphorylated products of ribose such as ATP and NADH play dominant roles in cellular metabolism.

Difference Between Deoxyribose and Ribose -

What is Deoxyribose

Deoxyribose is a pentose monosaccharide or simple sugar with the chemical formula of C5H10O4. Its name specifies that it is a deoxy sugar. It results from the sugar ribose by the loss of an oxygen atom. It has two enantiomers; D-2-deoxyribose and L-2-deoxyribose. However, D-2-deoxyribose occurs widely in nature, but L-2-deoxyribose rarely originate in nature. It was discovered in 1929 by Phoebus Levene. D-2-deoxyribose is the main precursor of the nucleic acid DNA (deoxyribonucleic acid).

Difference Between Deoxyribose and Ribose

The differences between ribose and deoxyribose can be divided into following categories. They are; 

Definition

Ribose is an aldo-pentose or, in other words, a monosaccharide containing five carbon atoms. As shown in figure 1, in its open chain form, it has an aldehyde functional group at one end.  

Deoxyribose, or more accurately 2-deoxyribose, is a monosaccharide, and its name indicates that it is a deoxy sugar, meaning that it is derived from the sugar ribose by the loss of one oxygen atom.

Chemical Structure

RiboseMain Difference - Deoxyribose vs Ribose -2

Figure 1: Molecular formula of Ribose

Deoxyribose

Main Difference - Deoxyribose vs Ribose

Figure 2: Molecular formula of Deoxyribose

Chemical Formula

The chemical formula of Ribose is C5H10O5.

The chemical formula of Deoxyribose is C5H10O4.

Molar Mass

The molecular mass of Ribose 150.13 g/mol.

The molecular mass of Deoxyribose 134.13 g·mol−1

IUPAC name

IUPAC name of Ribose is (2S,3R,4S,5R)-5-(hydroxymethyl)oxolane-2,3,4-triol.

IUPAC name of Deoxyribose is 2-deoxy-D-ribose.

Other names

Ribose is also known as D-Ribose.

Deoxyribose is also known as 2-deoxy-D-erythro-pentose, thyminose.

History

Ribose was discovered in 1891 by Emil Fischer.

Deoxyribose was discovered in 1929 by Phoebus Levene.

Biological importance

The D-ribose creates part of the backbone of RNA. RNA is mainly involved in the biologically important protein synthesis. In addition, phosphorylated products of ribose including ATP and NADH play central roles in cellular metabolism such as respiration, photosynthesis, reproduction, etc. D-ribose must be phosphorylated by the cell before it can be used in biochemical reactions. Cyclic AMP and GMP, derived from ATP and GTP, function as secondary messengers in some signaling pathways.

Deoxyribose products have a significant role in biology. The DNA molecule is the chief source of genetic information in each and every living life, comprises of a long chain of deoxyribose-containing units known as nucleotides, connected via phosphate groups. DNA nucleotide consists of organic bases such as adenine, thymine, guanine or cytosine. The absence of the 2′ hydroxyl group in deoxyribose is actually accountable for the increased mechanical flexibility of DNA compared to RNA. In addition, this mechanical flexibility also allows it to assume the double-helix conformation, and to be efficiently and neatly coiled within the small cell nucleus.

In conclusion, both ribose and deoxyribose are primarily important to produce RNA and DNA. In addition, these chemical compounds will participate in valuable biological mechanisms in the human body.

Difference Between Deoxyribose and Ribose - infographic

References

C.Bernelot-Moens, and B. Demple, (1989), Multiple DNA repair activities for 3′-deoxyribose fragments in Escherichia coli. Nucleic Acids Research, Volume 17, issue 2, p. 587–600.

The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (11th ed.), Merck, 1989, ISBN 091191028X, 2890

Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, FL: CRC Press. p. C-506. ISBN 0-8493-0462-8.

Image Courtesy:

“D-Ribose” by Edgar181 – Own work. (Public Domain) via

“D-dexoyribose chain” by Physchim62 – Own work. via

“Chemical structure of Ribose and Deoxyribose” by   via

About the Author: admin


Related pages


didactic definition and examplesastronomy vs astrologyoat vs wheatthe difference between saturated and unsaturated hydrocarbonslinear momentum to angular momentumgenerators and alternatorsmonoecious flowerexplain how the two types of barometers measure atmospheric pressureneurotic vs psychoticmeaning of tensile strengthhow does interphase prepare cells for mitosisyield stress adalahcondescending attitude definitionis shark a mammal or fishdifferences between jaguar and leopardaltar and alterdemonstrative adjective definitiondifference between alkaline and regular batterieshow to use calipers and micrometersbullmastiff heightread micrometer caliperwhat is the difference between prokaryotic and eukaryoticreferencing chicagodefinition of an expository essayooty famous placescentromere and centrosomewhat is the difference between rocks and mineralshow to spell auntie or auntyneoclassical featureswhat is the difference between hotel and motel and innwhat is the difference between an anthropologist and an archaeologistfruit dry with seed definitioncomedy of manners literary definitiondifference between semicolon and commaturtle vs tortoisewhat is enculturationsoar soretriploblastthe major difference between aria and recitative isdifferences between granulocytes and agranulocytesdifference between essential and nonessential nutrientsstructuralism in psychology definitioncommon noun and examplesmeningitis or encephalitisdifference from alligator and crocodilefunction of centriolebravery defineribose sugar vs deoxyribose sugarmedieval surfmeaning of coordinating conjunctionswhats a serfhow does biogeography support evolutionphenols definitionexamples of subjective complementantagonist or protagonistdifference between legumes and cerealsexamples of bacillistereotypical character definitionfind asymptotes of hyperbolacontinuous spectrum and emission spectrumrhythm and rhyme examplestesting for sulphate ionseosinophil structure and functionexamples of homogeneous and heterogeneous mixturesschizophrenia mood swingswhat is the difference between a embryo and a fetusphonetic difference between vowels and consonants with examplesupthrust definitionorthorpneawhat is the difference between satire and parodythe difference between self pollination and cross pollinationdifference between exocytosis and endocytosiswasp vs hornetsascorbate vs ascorbic acidde jure definitionwhat is the difference between quotation marks and speech marksdefinition of customs and traditionsclassification of tulsidistinguish between osmosis and diffusion