Tyrosine phosphorylation of measles virus P-phosphoprotein in persistently infected neuroblastoma cells

Replication and encapsidation of measles virus (MV) requires the interaction between the nuclear protein (N) and the phosphoprotein (P). It is known that both proteins are phosphorylated on serine and threonine residues. Recently we have shown that N is phosphorylated on tyrosine in persistently-infected mouse neuroblastoma cells (NS20Y/MS). Here, we show that P in NS20Y/MS is also phosphorylated on tyrosine. To investigate whether cellular tyrosine kinases can bind and phosphorylate P, a solid phase kinase assay was employed. We show that bacterially-expressed MV P fragments, were phosphorylated on tyrosine by purified mouse c-Src protein-tyrosine kinase and when mixed with uninfected neuroblastoma cell (NS20Y) extracts, these P fragments were phosphorylated on tyrosine in addition to serine and threonine. These results imply that MV P is a substrate for tyrosine phosphorylation by cellular tyrosine kinase(s).

Medienart:

Artikel

Erscheinungsjahr:

1996

Erschienen:

1996

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Virus genes - 13(1996), 3 vom: 24., Seite 203-10

Sprache:

Englisch

Beteiligte Personen:

Ofir, R [VerfasserIn]
Weinstein, Y [VerfasserIn]
Bazarsky, E [VerfasserIn]
Blagerman, S [VerfasserIn]
Wolfson, M [VerfasserIn]
Hunter, T [VerfasserIn]
Rager-Zisman, B [VerfasserIn]

Themen:

2ZD004190S
42HK56048U
452VLY9402
CSK Tyrosine-Protein Kinase
EC 2.7.10.1
EC 2.7.10.2
Journal Article
P protein, Sendai virus
Phosphoproteins
Protein-Tyrosine Kinases
Recombinant Fusion Proteins
Research Support, Non-U.S. Gov't
Serine
Src-Family Kinases
Threonine
Tyrosine
Viral Proteins

Anmerkungen:

Date Completed 29.05.1997

Date Revised 10.12.2019

published: Print

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM089986296