CovidV1, PascalFrancis, Corpus, bibRecord, 000063

Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus

Identifieur interne : 000063 ( PascalFrancis/Corpus ); précédent : 000062; suivant : 000064

Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus

Auteurs : E. L. Oleszak ; J. Kuzmak ; B. Hogue ; R. Parr ; E. W. Collisson ; L. S. Rodkey ; J. L. Leibowitz

Source :

Hybridoma [ 0272-457X ] ; 1995.

RBID : Pascal:95-0193765

Descripteurs français

Pascal (Inist)
- Souris, Homme, Virus hépatite murine, Virus gastroentérite transmissible porc, Mutation, Mimétisme, Protéine recombinante, Anticorps monoclonal, Récepteur biologique, Sérologie, Réaction croisée, IgG, Récepteur Fcγ.

English descriptors

KwdEn :
- Biological receptor, Cross reaction, Human, IgG, Mimetism, Monoclonal antibody, Mouse, Murine hepatitis virus, Mutation, Porcine transmissible gastroenteritis virus, Recombinant protein, Serology.

Abstract

We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)₂ fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)₂ fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG₁, IgG₂, and IgG₃ myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)₂ fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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C01	`01`		`ENG`	@0 We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)₂ fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)₂ fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG₁, IgG₂, and IgG₃ myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)₂ fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR
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Format Inist (serveur)

NO :	PASCAL 95-0193765 INIST
ET :	Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus
AU :	OLESZAK (E. L.); KUZMAK (J.); HOGUE (B.); PARR (R.); COLLISSON (E. W.); RODKEY (L. S.); LEIBOWITZ (J. L.)
AF :	Temple univ. school medicine, Fels inst. cancer res. molecular biology/Philadelphia PA 19140/Etats-Unis (1 aut., 2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Hybridoma; ISSN 0272-457X; Coden HYBRDY; Etats-Unis; Da. 1995; Vol. 14; No. 1; Pp. 1-8; Bibl. 74 ref.
LA :	Anglais
EA :	We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)₂ fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)₂ fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG₁, IgG₂, and IgG₃ myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)₂ fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR
CC :	002A06B02A
FD :	Souris; Homme; Virus hépatite murine; Virus gastroentérite transmissible porc; Mutation; Mimétisme; Protéine recombinante; Anticorps monoclonal; Récepteur biologique; Sérologie; Réaction croisée; IgG; Récepteur Fcγ
FG :	Rodentia; Mammalia; Vertebrata; Coronavirus; Coronaviridae; Virus
ED :	Mouse; Human; Murine hepatitis virus; Porcine transmissible gastroenteritis virus; Mutation; Mimetism; Recombinant protein; Monoclonal antibody; Biological receptor; Serology; Cross reaction; IgG
EG :	Rodentia; Mammalia; Vertebrata; Coronavirus; Coronaviridae; Virus
SD :	Ratón; Hombre; Murine hepatitis virus; Porcine transmissible gastroenteritis virus; Mutación; Mimetismo; Proteína recombinante; Anticuerpo monoclonal; Receptor biológico; Serología; Reacción cruzada; IgG
LO :	INIST-20384.354000055692160010
ID :	95-0193765

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Pascal:95-0193765

Le document en format XML

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<front><div type="abstract" xml:lang="en">We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)<sub>2</sub>
 fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)<sub>2</sub>
 fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG<sub>1</sub>
, IgG<sub>2</sub>
, and IgG<sub>3</sub>
 myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)<sub>2</sub>
 fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR</div>
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<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>20384</s2>
<s5>354000055692160010</s5>
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<fA60><s1>P</s1>
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<fA61><s0>A</s0>
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</fA66>
<fC01 i1="01" l="ENG"><s0>We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)<sub>2</sub>
 fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)<sub>2</sub>
 fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG<sub>1</sub>
, IgG<sub>2</sub>
, and IgG<sub>3</sub>
 myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)<sub>2</sub>
 fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>002A06B02A</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Souris</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Mouse</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Ratón</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Homme</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Human</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Hombre</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Virus hépatite murine</s0>
<s2>NW</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Murine hepatitis virus</s0>
<s2>NW</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Murine hepatitis virus</s0>
<s2>NW</s2>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Virus gastroentérite transmissible porc</s0>
<s2>NW</s2>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Porcine transmissible gastroenteritis virus</s0>
<s2>NW</s2>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Porcine transmissible gastroenteritis virus</s0>
<s2>NW</s2>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Mutation</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Mutation</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Mutación</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Mimétisme</s0>
<s5>07</s5>
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<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Mimetismo</s0>
<s5>07</s5>
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<fC03 i1="07" i2="X" l="FRE"><s0>Protéine recombinante</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Recombinant protein</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Proteína recombinante</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Anticorps monoclonal</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Monoclonal antibody</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Anticuerpo monoclonal</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Récepteur biologique</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Biological receptor</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Receptor biológico</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Sérologie</s0>
<s5>11</s5>
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<fC03 i1="10" i2="X" l="ENG"><s0>Serology</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Serología</s0>
<s5>11</s5>
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<fC03 i1="11" i2="X" l="FRE"><s0>Réaction croisée</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Cross reaction</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Reacción cruzada</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>IgG</s0>
<s5>74</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>IgG</s0>
<s5>74</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>IgG</s0>
<s5>74</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Récepteur Fcγ</s0>
<s4>INC</s4>
<s5>91</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Rodentia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Mammalia</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Mammalia</s0>
<s2>NS</s2>
</fC07>
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<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Coronavirus</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Coronavirus</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Coronavirus</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="05" i2="X" l="FRE"><s0>Coronaviridae</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="05" i2="X" l="ENG"><s0>Coronaviridae</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Coronaviridae</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="06" i2="X" l="FRE"><s0>Virus</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Virus</s0>
<s2>NW</s2>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Virus</s0>
<s2>NW</s2>
</fC07>
<fN21><s1>116</s1>
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<server><NO>PASCAL 95-0193765 INIST</NO>
<ET>Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus</ET>
<AU>OLESZAK (E. L.); KUZMAK (J.); HOGUE (B.); PARR (R.); COLLISSON (E. W.); RODKEY (L. S.); LEIBOWITZ (J. L.)</AU>
<AF>Temple univ. school medicine, Fels inst. cancer res. molecular biology/Philadelphia PA 19140/Etats-Unis (1 aut., 2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Hybridoma; ISSN 0272-457X; Coden HYBRDY; Etats-Unis; Da. 1995; Vol. 14; No. 1; Pp. 1-8; Bibl. 74 ref.</SO>
<LA>Anglais</LA>
<EA>We have previously demonstrated molecular mimicry between the S peplomer protein of mouse hepatitis virus (MHV) and Fc gamma R (FcγR). A monoclonal antibody (MAb) to mouse FcγR (2.4G2 anti-FcγR MAb), purified rabbit immunoglobulin, but not their F(ab′)<sub>2</sub>
 fragments, as well as mouse and rat IgG, immunoprecipitated (1) recombinant S peplomer protein expressed by a vaccinia virus recombinant in human, rabbit, and mouse cells, and (2) natural S peplomer protein from cells infected with several strains of MHV and MHV escape mutants. We report here results of studies documenting molecular mimicry between FcγR and S peplomer protein of viruses representing three distinct antigenic subgroups of the Coronaviridae. We have shown a molecular mimicry between the S peplomer protein of bovine corona virus (BCV) and FcγR. The 2.4G2 anti-FcγR MAb, rabbit IgG, but not its F(ab′)<sub>2</sub>
 fragments, as well as homologous bovine serum, free of anti-BCV antibodies, immunoprecipitated S peplomer protein of BCV (Mebus strain). In contrast, we did not find molecular mimicry between S peplomer protein of human corona virus (HCV-OC43) and FcγR. Although the OC43 virus belongs to the same antigenic group as MHV and BCV, MAb specific for human FcγR I or FcγR II and purified human IgG<sub>1</sub>
, IgG<sub>2</sub>
, and IgG<sub>3</sub>
 myeloma proteins did not immunoprecipitate the S peplomer protein from HCV-OC43-infected RD cells. In addition, we did demonstrate molecular mimicry between the S peplomer protein of porcine transmissible gastroenteritis virus (TGEV) and FcγR. TGEV belongs to the second antigenic subgroup of coronaviridae. Homologous swine IgG, but not its F(ab′)<sub>2</sub>
 fragments, immunoprecipitated from TGEV-infected cells a 195-kDa polypeptide corresponding to the TGEV S peplomer protein. We have also examined whether there is a molecular mimicry between S peplomer protein of infectious bronchitis virus (IBV) and FcγR. Nonimmune chicken IgG did not immunoprecipitate the S peplomer protein from IBV-infected chicken embryo fibroblasts or Vero cells, suggesting that there is no molecular mimicry between the IBV-S and FcγR. In conclusion, we have demonstrated molecular mimicry between FcγR and S peplomer protein of three members of Coronaviridae, namely MHV, BCV, and TGEV. In contrast, the S peplomer protein of two other members of Coronaviridae, namely HCV-OC43 and IBV, did not exhibit any molecular mimicry with FcγR</EA>
<CC>002A06B02A</CC>
<FD>Souris; Homme; Virus hépatite murine; Virus gastroentérite transmissible porc; Mutation; Mimétisme; Protéine recombinante; Anticorps monoclonal; Récepteur biologique; Sérologie; Réaction croisée; IgG; Récepteur Fcγ</FD>
<FG>Rodentia; Mammalia; Vertebrata; Coronavirus; Coronaviridae; Virus</FG>
<ED>Mouse; Human; Murine hepatitis virus; Porcine transmissible gastroenteritis virus; Mutation; Mimetism; Recombinant protein; Monoclonal antibody; Biological receptor; Serology; Cross reaction; IgG</ED>
<EG>Rodentia; Mammalia; Vertebrata; Coronavirus; Coronaviridae; Virus</EG>
<SD>Ratón; Hombre; Murine hepatitis virus; Porcine transmissible gastroenteritis virus; Mutación; Mimetismo; Proteína recombinante; Anticuerpo monoclonal; Receptor biológico; Serología; Reacción cruzada; IgG</SD>
<LO>INIST-20384.354000055692160010</LO>
<ID>95-0193765</ID>
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Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus

Molecular mimicry between Fc receptor and S peplomer protein of mouse hepatitis virus, bovine corona virus, and transmissible gastroenteritis virus

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