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A ribosomal protein (r-protein or rProtein [1] [2] [3]) is any of the proteins that, in conjunction with rRNA, make up the ribosomal subunits involved in the cellular process of translation. E. coli , other bacteria and Archaea have a 30S small subunit and a 50S large subunit, whereas humans and yeasts have a 40S small subunit and a 60S large ...
To date, the mechanism of viral IRES function is better characterized than the mechanism of cellular IRES function, [8] which is still a matter of debate. HCV-like IRESs directly bind the 40S ribosomal subunit to position their initiator codons are located in ribosomal P-site without mRNA scanning.
Prokaryotic ribosomes begin translation of the mRNA transcript while DNA is still being transcribed. Thus translation and transcription are parallel processes. Bacterial mRNA are usually polycistronic and contain multiple ribosome binding sites. Translation initiation is the most highly regulated step of protein synthesis in prokaryotes. [5]
The table "60S ribosomal proteins" shows the individual protein folds of the 60S subunit colored by conservation as above. The eukaryote-specific extensions, ranging from a few residues or loops to very long alpha helices and additional domains, are highlighted in red. [2] Historically, different nomenclatures have been used for ribosomal proteins.
The Ribosomal Database Project (RDP) was a curated database that offers ribosome data along with related programs and services. The offerings included phylogenetically ordered alignments of ribosomal RNA (rRNA) sequences, derived phylogenetic trees, rRNA secondary structure diagrams and various software packages for handling, analyzing and ...
Notable examples include HIV-1 (human immunodeficiency virus), [7] RSV (Rous sarcoma virus) [8] and the influenza virus (flu), [9] which all rely on frameshifting to create a proper ratio of 0-frame (normal translation) and "trans-frame" (encoded by frameshifted sequence) proteins. Its use in viruses is primarily for compacting more genetic ...
The ribosomal RNA core is represented as a grey tube, expansion segments are shown in red. Universally conserved proteins are shown in blue. These proteins have homologs in eukaryotes, archaea and bacteria. Proteins shared only between eukaryotes and archaea are shown in orange, and proteins specific to eukaryotes are shown in red.
protein coding RNA - synonym of mRNA: rRNA: ribosomal RNA multiple families: 5S rRNA: 5S ribosomal RNA RF00001: 5.8S rRNA: 5.8S ribosomal RNA RF00002: SSU rRNA: small subunit ribosomal RNA CL00111: LSU rRNA: large subunit ribosomal RNA CL00112: NoRC RNA: nucleolar remodeling complex associated RNA RF01518: pRNA promoter RNA RF01518: synonym of ...