RNA Structures
An RNA Structure | ||||
Is made up of | ||||
Phosphate in a diester linkage | Ribose | Bases
| ||
Adenine, Uracil, Cytosine, Guanine | ||||
produce | ||||
Ribonucleotides | ||||
Polymers form | ||||
rRNA ribosomal RNA | tRNA transfer RNA | Eukaryotic mRNA messenger RNA | ||
Associates with protein. Three size species in prokaryotes. Four size species in eukaryotes. | Unusual bases. Extensive intra-chain base-pairing. At least one specific type of molecule for each of the twenty amino acids found in proteins. 3”-CCA | 3’-Poly-A tail. 5’-cap of 7-methyl-guanosine. | ||
Functions as structural component in ribosomes. | Adaptor molecule that carries a specific amino acid to the ribosoma/mRNA complex. | Template for protein synthesis. |
Reference
Champe, Harvey, Ferrier; Biochemistry. 3rd edition. Lippincott’s Illustrated Reviews. Lippincott Williams & Wilkins. 2005. http://www.LWW.com.