28S ribosomal RNA - Wikipedia
28S ribosomal RNA is the structural ribosomal RNA (rRNA) for the large subunit (LSU) of eukaryotic cytoplasmic ribosomes, and thus one of the basic components of all eukaryotic cells. It has a size of 25S in plants and 28S in mammals, hence the alias of 25S–28S rRNA. [1]
28S Ribosomal RNA - an overview | ScienceDirect Topics
The 28S rRNA acts as a ribozyme, catalysing peptide bond formation. Leishmania species are atypical in its composition, as they contain two large (24Sα and 24Sβ) and four small rRNA molecules (Ƴ, ζ, δ, Ɛ) (Soto et al., 2004).
28S Ribosomal RNA - an overview | ScienceDirect Topics
2011年2月7日 · 28S Ribosomal RNA is a type of ribosomal RNA gene that is part of the large cytoplasmic ribosomal subunit, with an estimated number of 150-200 copies per chromosome. AI generated definition based on: Medical and Health Genomics, 2016
The sequence of 28S ribosomal RNA varies within and between …
The implications for the evolution of the eukaryotic 28S rRNA are discussed together with possible functions of the expansion segments. We also present a secondary structure model for the V8 segment based on comparative sequence analysis and chemical and enzymatic foot printing.
The Expansion Segments of 28S Ribosomal RNA Extensively …
Eukaryote ribosomal RNAs (rRNAs) have expanded in the course of phylogeny by addition of nucleotides in specific insertion areas, the expansion segments. These number about 40 in the larger (25–28S) rRNA (up to 2,400 nucleotides), and …
28S rRNA - (General Biology I) - Vocab, Definition, Explanations
28S rRNA provides the essential structural framework for the large subunit of the eukaryotic ribosome, enabling it to maintain its shape and stability during translation. It also plays an active role in catalyzing peptide bond formation through its peptidyl transferase activity.
The secondary structure of human 28S rRNA: the structure and evolution ...
We have determined the secondary structure of the human 28S rRNA molecule based on comparative analysis of available eukaryotic cytoplasmic and prokaryotic large-rRNA gene sequences.
The complete nucleotide sequence of mouse 28S rRNA gene.
We have determined the complete nucleotide sequence (4712 nucleotides) of the mouse 28S rRNA gene. Comparison with all other homologs indicates that the potential for major variations in size during the evolution has been restricted to a unique set ...
Human 28S ribosomal RNA sequence heterogeneity. - PMC
1988年11月11日 · S1 nuclease analysis allowed us to examine the population of ribosomal RNA molecules of a cell, and we found that 28S rRNA is a heterogeneous assortment of molecules in both mono- and polysomal preparations.
Computational discovery of hidden breaks in 28S ribosomal RNAs …
2019年12月20日 · In some eukaryotes, a ‘hidden break’ has been described in which the 28S ribosomal RNA molecule is cleaved into two subparts. The break is common in protostome animals (arthropods, molluscs,...