Nucleocapsid Protein Subunits of Simian Virus 5, Newcastle Disease Virus, and Sendai Virus
Overview
Affiliations
Helical nucleocapsids of each of the paramyxoviruses simian virus 5 (SV5), Newcastle disease virus (NDV), and Sendai virus have been isolated in two different forms. One form contains larger protein subunits and is obtained from mature virions or infected cells dispersed by ethylenediaminetetraacetic acid. The other form possesses smaller subunits and is obtained from infected cells dispersed by trypsin. The estimated molecular weights of the larger subunits in the three viruses are similar: SV5, 61,000; Sendai virus, 60,000; NDV, 56,000. The smaller nucleocapsid subunits are also very similar: SV5, 43,000; Sendai virus, 46,000; NDV, 47,000. The helical nucleocapsid composed of the smaller subunit appears to be less flexible and more stable than that formed by the larger subunit. There is suggestive evidence that conversion of the larger subunit to the smaller by proteolytic cleavage may occur intracellularly. The possibility that such a mechanism could be involved in the accumulation of nucleocapsid in cells persistently infected with paramyxoviruses is discussed.
C Proteins: Controllers of Orderly Paramyxovirus Replication and of the Innate Immune Response.
Siering O, Cattaneo R, Pfaller C Viruses. 2022; 14(1).
PMID: 35062341 PMC: 8778822. DOI: 10.3390/v14010137.
Definition of the immune evasion-replication interface of rabies virus P protein.
Zhan J, Harrison A, Portelli S, Nguyen T, Kojima I, Zheng S PLoS Pathog. 2021; 17(7):e1009729.
PMID: 34237115 PMC: 8291714. DOI: 10.1371/journal.ppat.1009729.
Structure of the paramyxovirus parainfluenza virus 5 nucleoprotein-RNA complex.
Alayyoubi M, Leser G, Kors C, Lamb R Proc Natl Acad Sci U S A. 2015; 112(14):E1792-9.
PMID: 25831513 PMC: 4394319. DOI: 10.1073/pnas.1503941112.
Fungal negative-stranded RNA virus that is related to bornaviruses and nyaviruses.
Liu L, Xie J, Cheng J, Fu Y, Li G, Yi X Proc Natl Acad Sci U S A. 2014; 111(33):12205-10.
PMID: 25092337 PMC: 4143027. DOI: 10.1073/pnas.1401786111.
Gomaa M, Yoo D, Ojkic D, Barta J Clin Vaccine Immunol. 2008; 15(12):1839-44.
PMID: 18971306 PMC: 2593163. DOI: 10.1128/CVI.00319-08.