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Difference between Purine and Pyrimidine?
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Answer Posted / ntegerejimana theogene
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Purines
Pyrimidines
Function Production of RNA and DNA, proteins and starches,
the regulation of enzymes and cell signaling. Production of
RNA and DNA, proteins and starches, the regulation of
enzymes and cell signaling.
Nucleobases Adenine and guanine Cytosine, thymine, uracil
Structure A pyrimidine ring fused to a imidazole ring.
Contains two carbon-nitrogen rings and four nitrogen
atoms. Contains one carbon-nitrogen ring and two nitrogen
atoms.
Melting point 214 °C, 487 K, 417 °F 20–22 °C
Type of Compound Heterocyclic aromatic organic compound
Heterocyclic aromatic organic compound
Molecular formula C5H4N4 C4H4N2
Molar mass 120.11 g mol−1 80.088 g mol-1
MeSH Purine Pyrimidine
SMILES c1c2c(nc[nH]2)ncn1 C1=CN=CN=C1
Introduction (from Wikipedia) A purine is a heterocyclic
aromatic organic compound, consisting of a pyrimidine ring
fused to an imidazole ring. Pyrimidine is a heterocyclic
aromatic organic compound similar to benzene and pyridine,
containing two nitrogen atoms at positions 1 and 3 of the
six-member ring. It is isomeric with two other forms of diazine.
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