SARS-CoV-2 (COVID-19) Spike RBD Antibody [T4P3-B5] Cat. No.: SD9431

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psi-iconSpecifications
HOST SPECIES:Llama
SPECIES REACTIVITY: Virus
IMMUNOGEN: SARS-CoV-2 S protein RBD containing C-terminal His Tag. The protein was expressed in human 293 cells (HEK293). It contains amino acids Arg 319 - Lys 537.
TESTED APPLICATIONS: ELISA

psi-iconProperties
PURIFICATION:SARS-CoV-2 (COVID-19) S1 RBD Antibody [T4P3-B5] is affinity chromatography purified via Nickel column. Antibody is supplied as a His-tagged purified protein.  It also contains a myc-tag for detection.
CLONALITY:Monoclonal
ISOTYPE:sdAb
CONJUGATE:Unconjugated
PHYSICAL STATE:Liquid
BUFFER:SARS-CoV-2 (COVID-19) S1 RBD Antibody [T4P3-B5] Antibody is supplied in PBS.
CONCENTRATION:batch dependent
STORAGE CONDITIONS:SARS-CoV-2 (COVID-19) S1 RBD antibody should be stored in working aliquots at -20˚C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.

psi-iconAdditional Info
OFFICIAL SYMBOL:S
ALTERNATE NAMES:SARS-CoV-2 (COVID-19) Spike S1 Antibody: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Surface Glycoprotein, Spike protein
ACCESSION NO.:QHD43416
PROTEIN GI NO.:1791269090
GENE ID:43740568
USER NOTE:Optimal dilutions for each application to be determined by the researcher.
psi-iconBackground and References
BACKGROUND: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).
REFERENCES:1) Gorbalenya. bioRxiv: 2020.
2) Hui et al. Int J Infect Dis. 2020;91:264-266.
3) Belouzard et al. Viruses. 2012;4(6):1011-33.
4) Lee et al. J Virol. 2006;80(8):4079-87.
5) Wan et al. J Virol. 2020.
6) Wrapp et al. Science. 2020.

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