摘要:
Attenuated viruses and methods of designing them are disclosed. In one embodiment, there is disclosed an attenuated form of a virulent virus comprising an RNA encoding a viral protein or a nucleic acid sequence transcribable to said RNA, wherein the folding energy or structure of the RNA is changed at positions of evolutionarily conserved RNA structures with respect to that of said RNA encoding said viral protein in the virulent virus so as to bring about attenuation of the virus.
摘要:
Attenuated viruses and methods of designing them are disclosed. In one embodiment, there is disclosed an attenuated form of a virulent virus comprising an RNA encoding a viral protein or a nucleic acid sequence transcribable to said RNA, wherein the folding energy or structure of the RNA is changed at positions of evolutionarily conserved RNA structures with respect to that of said RNA encoding said viral protein in the virulent virus so as to bring about attenuation of the virus.
摘要:
Methods of designing a polynucleotide sequence for expressing a polypeptide-of-interest in a cell are provided. Also provided are artificial transcript sequences generated according to the present teachings. Further provided are methods of estimating the adaptiveness of a transcript sequence encoding a polypeptide-of-interest to a gene expression machinery in a cell.
摘要:
Genetically modified cells with at least one codon substituted to a synonymous codon, and with modified replicative fitness as compared to the unmodified cell, wherein a slower translating synonymous codon increases replicative fitness and a faster translating codon decreased replicative fitness are provided. Further, vaccine composition comprising those cells as well as methods for modifying replicative fitness of a cell are provided.
摘要:
Genetically modified cells with at least one codon substituted to a synonymous codon, and with modified replicative fitness as compared to the unmodified cell, wherein a slower translating synonymous codon increases replicative fitness and a faster translating codon decreased replicative fitness are provided. Further, vaccine composition comprising those cells as well as methods for modifying replicative fitness of a cell are provided.
摘要:
Methods of designing a polynucleotide sequence for expressing a polypeptide-of-interest in a cell are provided. Also provided are artificial transcript sequences generated according to the present teachings. Further provided are methods of estimating the adaptiveness of a transcript sequence encoding a polypeptide-of-interest to a gene expression machinery in a cell.
摘要:
Nucleic acid molecules comprising a coding sequence with at least one codon substituted to a synonymous codon, a modified form of a virus comprising the nucleic acid molecules of the invention, and methods for producing these nucleic acid molecules, and viruses, are provided.