NS1-binding protein abrogates the elevation of cell viability by the influenza A virus NS1 protein in association with CRKL

Masaya Miyazaki, Hiroshi Nishihara, Hideki Hasegawa, Masato Tashiro, Lei Wang, Taichi Kimura, Mishie Tanino, Masumi Tsuda, Shinya Tanaka

研究成果: Article

7 引用 (Scopus)

抄録

The influenza A virus non-structural protein 1 (NS1) is a multifunctional virulence factor consisting of an RNA binding domain and several Src-homology (SH) 2 and SH3 binding motifs, which promotes virus replication in the host cell and helps to evade antiviral immunity. NS1 modulates general host cell physiology in association with various cellular molecules including NS1-binding protein (NS1-BP) and signaling adapter protein CRK-like (CRKL), while the physiological role of NS1-BP during influenza A virus infection especially in association with NS1 remains unclear. In this study, we analyzed the intracellular association of NS1-BP, NS1 and CRKL to elucidate the physiological roles of these molecules in the host cell. In HEK293T cells, enforced expression of NS1 of A/Beijing (H1N1) and A/Indonesia (H5N1) significantly induced excessive phosphorylation of ERK and elevated cell viability, while the over-expression of NS1-BP and the abrogation of CRKL using siRNA abolished such survival effect of NS1. The pull-down assay using GST-fusion CRKL revealed the formation of intracellular complexes of NS1-BP, NS1 and CRKL. In addition, we identified that the N-terminus SH3 domain of CRKL was essential for binding to NS1-BP using GST-fusion CRKL-truncate mutants. This is the first report to elucidate the novel function of NS1-BP collaborating with viral protein NS1 in modulation of host cell physiology. In addition, an alternative role of adaptor protein CRKL in association with NS1 and NS1-BP during influenza A virus infection is demonstrated.

元の言語English
ページ(範囲)953-957
ページ数5
ジャーナルBiochemical and Biophysical Research Communications
441
発行部数4
DOI
出版物ステータスPublished - 2013 11 29
外部発表Yes

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Viral Structural Proteins
Influenza A virus
Viruses
Protein Binding
Cell Survival
Carrier Proteins
Cells
Association reactions
Proteins
Cell Physiological Phenomena
Virus Diseases
Physiology
Viral Nonstructural Proteins
Fusion reactions
src Homology Domains
Indonesia

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

これを引用

NS1-binding protein abrogates the elevation of cell viability by the influenza A virus NS1 protein in association with CRKL. / Miyazaki, Masaya; Nishihara, Hiroshi; Hasegawa, Hideki; Tashiro, Masato; Wang, Lei; Kimura, Taichi; Tanino, Mishie; Tsuda, Masumi; Tanaka, Shinya.

:: Biochemical and Biophysical Research Communications, 巻 441, 番号 4, 29.11.2013, p. 953-957.

研究成果: Article

Miyazaki, Masaya ; Nishihara, Hiroshi ; Hasegawa, Hideki ; Tashiro, Masato ; Wang, Lei ; Kimura, Taichi ; Tanino, Mishie ; Tsuda, Masumi ; Tanaka, Shinya. / NS1-binding protein abrogates the elevation of cell viability by the influenza A virus NS1 protein in association with CRKL. :: Biochemical and Biophysical Research Communications. 2013 ; 巻 441, 番号 4. pp. 953-957.
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abstract = "The influenza A virus non-structural protein 1 (NS1) is a multifunctional virulence factor consisting of an RNA binding domain and several Src-homology (SH) 2 and SH3 binding motifs, which promotes virus replication in the host cell and helps to evade antiviral immunity. NS1 modulates general host cell physiology in association with various cellular molecules including NS1-binding protein (NS1-BP) and signaling adapter protein CRK-like (CRKL), while the physiological role of NS1-BP during influenza A virus infection especially in association with NS1 remains unclear. In this study, we analyzed the intracellular association of NS1-BP, NS1 and CRKL to elucidate the physiological roles of these molecules in the host cell. In HEK293T cells, enforced expression of NS1 of A/Beijing (H1N1) and A/Indonesia (H5N1) significantly induced excessive phosphorylation of ERK and elevated cell viability, while the over-expression of NS1-BP and the abrogation of CRKL using siRNA abolished such survival effect of NS1. The pull-down assay using GST-fusion CRKL revealed the formation of intracellular complexes of NS1-BP, NS1 and CRKL. In addition, we identified that the N-terminus SH3 domain of CRKL was essential for binding to NS1-BP using GST-fusion CRKL-truncate mutants. This is the first report to elucidate the novel function of NS1-BP collaborating with viral protein NS1 in modulation of host cell physiology. In addition, an alternative role of adaptor protein CRKL in association with NS1 and NS1-BP during influenza A virus infection is demonstrated.",
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T1 - NS1-binding protein abrogates the elevation of cell viability by the influenza A virus NS1 protein in association with CRKL

AU - Miyazaki, Masaya

AU - Nishihara, Hiroshi

AU - Hasegawa, Hideki

AU - Tashiro, Masato

AU - Wang, Lei

AU - Kimura, Taichi

AU - Tanino, Mishie

AU - Tsuda, Masumi

AU - Tanaka, Shinya

PY - 2013/11/29

Y1 - 2013/11/29

N2 - The influenza A virus non-structural protein 1 (NS1) is a multifunctional virulence factor consisting of an RNA binding domain and several Src-homology (SH) 2 and SH3 binding motifs, which promotes virus replication in the host cell and helps to evade antiviral immunity. NS1 modulates general host cell physiology in association with various cellular molecules including NS1-binding protein (NS1-BP) and signaling adapter protein CRK-like (CRKL), while the physiological role of NS1-BP during influenza A virus infection especially in association with NS1 remains unclear. In this study, we analyzed the intracellular association of NS1-BP, NS1 and CRKL to elucidate the physiological roles of these molecules in the host cell. In HEK293T cells, enforced expression of NS1 of A/Beijing (H1N1) and A/Indonesia (H5N1) significantly induced excessive phosphorylation of ERK and elevated cell viability, while the over-expression of NS1-BP and the abrogation of CRKL using siRNA abolished such survival effect of NS1. The pull-down assay using GST-fusion CRKL revealed the formation of intracellular complexes of NS1-BP, NS1 and CRKL. In addition, we identified that the N-terminus SH3 domain of CRKL was essential for binding to NS1-BP using GST-fusion CRKL-truncate mutants. This is the first report to elucidate the novel function of NS1-BP collaborating with viral protein NS1 in modulation of host cell physiology. In addition, an alternative role of adaptor protein CRKL in association with NS1 and NS1-BP during influenza A virus infection is demonstrated.

AB - The influenza A virus non-structural protein 1 (NS1) is a multifunctional virulence factor consisting of an RNA binding domain and several Src-homology (SH) 2 and SH3 binding motifs, which promotes virus replication in the host cell and helps to evade antiviral immunity. NS1 modulates general host cell physiology in association with various cellular molecules including NS1-binding protein (NS1-BP) and signaling adapter protein CRK-like (CRKL), while the physiological role of NS1-BP during influenza A virus infection especially in association with NS1 remains unclear. In this study, we analyzed the intracellular association of NS1-BP, NS1 and CRKL to elucidate the physiological roles of these molecules in the host cell. In HEK293T cells, enforced expression of NS1 of A/Beijing (H1N1) and A/Indonesia (H5N1) significantly induced excessive phosphorylation of ERK and elevated cell viability, while the over-expression of NS1-BP and the abrogation of CRKL using siRNA abolished such survival effect of NS1. The pull-down assay using GST-fusion CRKL revealed the formation of intracellular complexes of NS1-BP, NS1 and CRKL. In addition, we identified that the N-terminus SH3 domain of CRKL was essential for binding to NS1-BP using GST-fusion CRKL-truncate mutants. This is the first report to elucidate the novel function of NS1-BP collaborating with viral protein NS1 in modulation of host cell physiology. In addition, an alternative role of adaptor protein CRKL in association with NS1 and NS1-BP during influenza A virus infection is demonstrated.

KW - Cell proliferation

KW - CrkII

KW - CrkL

KW - ERK

KW - NS1

KW - NS1-BP

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JO - Biochemical and Biophysical Research Communications

JF - Biochemical and Biophysical Research Communications

SN - 0006-291X

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