Abstract
All five structural polypeptides of infectious simian virus 40 grown in African green monkey kidney cells were found to be phosphorylated. The polypeptides with the largest and smallest molecular weights are phosphorylated to a somewhat lower extent than the other polypeptides. The protein moiety of "empty" virus, which is essentially devoid of deoxyribonucleic acid, exhibited a degree of phosphorylation similar to that of infectious virus. In the major polypeptide (molecular weight: 49,000), the phosphate appears to be bound to the seryl or threonyl residues, or both. The nature of the phosphate-polypeptide bond in the other viral polypeptides remains obscure.
MeSH Terms
Amino Acids
Animals
Carbon Isotopes
Cell Line
Cell-Free System
Centrifugation, Density Gradient
Deoxyribonucleases
Electrophoresis, Polyacrylamide Gel
Haplorhini
Kidney
Molecular Weight
Oxidative Phosphorylation
Peptides/analysis
Phenols
Phosphates/metabolism
Phosphoproteins/analysis
Phosphoric Diester Hydrolases
Phosphorus Isotopes
Phosphotransferases/metabolism
Simian virus 40/analysis,enzymology,growth & development,isolation & purification
Thymidine
Tritium
Viral Proteins/analysis
Chemicals
Amino Acids
Carbon Isotopes
Peptides
Phenols
Phosphates
Phosphoproteins
Phosphorus Isotopes
Viral Proteins
Tritium
Phosphotransferases
Deoxyribonucleases
Phosphoric Diester Hydrolases
Thymidine
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Tan K B
Sokol F
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21 references, click to expand
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