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Coat protein binding sites on RNA 1 of alfalfa mosaic virus. 1983

D Zuidema, and M F Bierhuizen, and B J Cornelissen, and J F Bol, and E M Jaspars

The largest genome segment, RNA 1, of alfalfa mosaic virus forms complexes with viral coat protein. These complexes were subjected to digestion with ribonucleases T1 or A and filtered onto Millipore filters. Specific fragments were collected from the filters by phenol extraction. After electrophoretic separation in denaturing polyacrylamide gels, these fragments were sequenced. Besides extracistronic fragments originating from the 3'-terminal region of RNA 1, fragments were found originating from an intracistronic region of the RNA. A striking phenomenon is that the intracistronic fragments were not found when ribonuclease A was used to degrade RNA/protein complexes. The findings are in agreement with the postulation of Houwing and Jaspars (1978), that a conformational change at the 3' ends of the genome RNAs induced by the coat protein is a prerequisite to start an infection cycle.

UI MeSH Term Description Entries
D009029 Mosaic Viruses Viruses which produce a mottled appearance of the leaves of plants. Mosaic Virus,Virus, Mosaic,Viruses, Mosaic
D009690 Nucleic Acid Conformation The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape. DNA Conformation,RNA Conformation,Conformation, DNA,Conformation, Nucleic Acid,Conformation, RNA,Conformations, DNA,Conformations, Nucleic Acid,Conformations, RNA,DNA Conformations,Nucleic Acid Conformations,RNA Conformations
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D004722 Endoribonucleases A family of enzymes that catalyze the endonucleolytic cleavage of RNA. It includes EC 3.1.26.-, EC 3.1.27.-, EC 3.1.30.-, and EC 3.1.31.-. Endoribonuclease
D006163 Ribonuclease T1 An enzyme catalyzing the endonucleolytic cleavage of RNA at the 3'-position of a guanylate residue. EC 3.1.27.3. Guanyloribonuclease,RNase T1,Ribonuclease N1,Aspergillus oryzae Ribonuclease,Guanyl-Specific RNase,RNase Apl,RNase F1,RNase Pch 1,RNase ST,Ribonuclease F1,Ribonuclease F2,Ribonuclease ST,Ribonuclease T-1,T 1 RNase,Guanyl Specific RNase,RNase, Guanyl-Specific,RNase, T 1,Ribonuclease T 1,Ribonuclease, Aspergillus oryzae
D000455 Medicago sativa A plant species of the family FABACEAE widely cultivated for ANIMAL FEED. Alfalfa,Lucerne
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D001665 Binding Sites The parts of a macromolecule that directly participate in its specific combination with another molecule. Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D012259 Ribonuclease, Pancreatic An enzyme that catalyzes the endonucleolytic cleavage of pancreatic ribonucleic acids to 3'-phosphomono- and oligonucleotides ending in cytidylic or uridylic acids with 2',3'-cyclic phosphate intermediates. EC 3.1.27.5. RNase A,Ribonuclease A,Pancreatic RNase,RNase I,Ribonuclease (Pancreatic),Ribonuclease I,Pancreatic Ribonuclease,RNase, Pancreatic
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA

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