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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.
mRNA-4157/V940 is an mRNA based cancer vaccine. When administered, it will produce one of several dozen possible abnormal proteins commonly found in cancerous tissues. The production of those proteins is intended to invoke an immune response. mRNA-4157/V940 is given to patients after their tumors have been sequenced and abnormal proteins ...
Surface model of the cap-binding complex (heavy chain pink, light chain yellow, m7G and GDP as balls), after PDB 1H2T. Formation on 5' ends of mRNAs The 5' cap of eukaryotic messenger RNA is bound at all times by various cap-binding complexes ( CBCs ).
The beauty of mRNA technology is that it opens the door to a more personalized and effective treatment as messenger RNA instructs the patient’s cells how to combat diseases like cancer ...
Capping changes the five prime end of the mRNA to a three prime end by 5'-5' linkage, which protects the mRNA from 5' exonuclease, which degrades foreign RNA. The cap also helps in ribosomal binding. In addition, it represents a unique mark for a correct gene. Therefore, it helps to select the mRNA that is going to be translated.
Transcription of mRNAs initiated by viral polymerase using cap snatching. The first step of transcription for some negative, single-stranded RNA viruses is cap snatching, in which the first 10 to 20 residues of a host cell RNA are removed (snatched) and used as the 5′ cap and primer to initiate the synthesis of the nascent viral mRNA. [1]