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Cytoplasmic localization of mRNA is thought to be a function of the 3' UTR. Proteins that are needed in a particular region of the cell can also be translated there; in such a case, the 3' UTR may contain sequences that allow the transcript to be localized to this region for translation.
Ribonucleic acid (RNA) is a polymeric molecule that is essential for most biological functions, either by performing the function itself (non-coding RNA) or by forming a template for the production of proteins (messenger RNA). RNA and deoxyribonucleic acid (DNA) are nucleic acids.
Overview of eukaryotic messenger RNA (mRNA) translation Translation of mRNA and ribosomal protein synthesis Initiation and elongation stages of translation involving RNA nucleobases, the ribosome, transfer RNA, and amino acids The three phases of translation: (1) in initiation, the small ribosomal subunit binds to the RNA strand and the initiator tRNA–amino acid complex binds to the start ...
Function Distribution Ref. Small nuclear RNA: snRNA: Splicing and other functions: Eukaryotes and archaea [3] Small nucleolar RNA: snoRNA: Nucleotide modification of RNAs: Eukaryotes and archaea [4] SmY RNA: SmY: mRNA trans-splicing: Nematodes [5] Small Cajal body-specific RNA: scaRNA: Type of snoRNA; Nucleotide modification of RNAs: Guide RNA ...
Typical structure of a mature eukaryotic mRNA. Polyadenylation is the addition of a poly(A) tail to an RNA transcript, typically a messenger RNA (mRNA). The poly(A) tail consists of multiple adenosine monophosphates; in other words, it is a stretch of RNA that has only adenine bases.
In molecular biology, the five-prime cap (5′ cap) is a specially altered nucleotide on the 5′ end of some primary transcripts such as precursor messenger RNA.This process, known as mRNA capping, is highly regulated and vital in the creation of stable and mature messenger RNA able to undergo translation during protein synthesis.
(30S) has mainly a decoding function and is also bound to the mRNA (50S) has mainly a catalytic function and is also bound to the aminoacylated tRNAs. The synthesis of proteins from their building blocks takes place in four phases: initiation, elongation, termination, and recycling. The start codon in all mRNA molecules has the sequence AUG.
The 3′-UTR of mRNA has a great variety of regulatory functions that are controlled by the physical characteristics of the region. One such characteristic is the length of the 3′-UTR, which in the mammalian genome has considerable variation. This region of the mRNA transcript can range from 60 nucleotides to about 4000. [3]