Description: SARS-CoV-2 Spike protein S2 subunit, also known as 2019-nCoV Spike S2, GenBank Accession No. MN908947, a.a. 686-1212, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=130 kDa.

Description: SARS-CoV-2 Spike protein S2 subunit, also known as 2019-nCoV Spike S2, GenBank Accession No. MN908947, a.a. 686-1212, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=130 kDa.

Description: Recombinant COVID-19 (2019 novel coronavirus) Spike protein S1 subunit was fused to His-tag at C-terminus and expressed in Baculovirus-Insect cells. The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell.S1 mainly contains a receptor binding domain (RBD) and recognize the cell surface receptor. S2 essential for membrane fusion. S protein are important for neutralizing-antibody and T-cell responses, as well as protective immunity.

Description: Recombinant Bovine coronavirus Spike glycoprotein(S),partial expressed in Yeast

Description: Recombinant Bovine coronavirus Spike glycoprotein(S),partial expressed in E.coli

Description: Recombinant Bovine coronavirus Spike glycoprotein(S) ,partial expressed in E.coli

Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Description: Human Coronavirus NL63 Spike trimer (S1+S2) (HCoV-NL63 S protein), Genbank Accession No. APF29071, a.a. 1-1296(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=146 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: Human Coronavirus NL63 Spike trimer (S1+S2) (HCoV-NL63 S protein), Genbank Accession No. APF29071, a.a. 1-1296(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=146 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: Severe acute respiratory Coronavirus SARS Coronavirus Spike trimer (S1+S2) (SARS-CoV S protein), Genbank Accession No. AAP13567, a.a. 1-1195(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=136 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: Severe acute respiratory Coronavirus SARS Coronavirus Spike trimer (S1+S2) (SARS-CoV S protein), Genbank Accession No. AAP13567, a.a. 1-1195(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=136 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Description: Recombinant Human coronavirus OC43 Spike glycoprotein(S) ,partial expressed in Yeast