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Sars cov 2 rbd proteins 40592 v08h

Manufactured by Sino Biological

SARS-CoV-2 RBD proteins (40592-V08H) are recombinant proteins derived from the receptor-binding domain (RBD) of the SARS-CoV-2 spike protein. These proteins can be used for research purposes, such as the development of diagnostic assays and the investigation of virus-host interactions.

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2 protocols using sars cov 2 rbd proteins 40592 v08h

1

ACE2-Mediated SARS-CoV-2 Inhibition Assay

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Recombinant proteins of human ACE2 extracellular enzymatic domain with >90% purity were purchased from R&D systems, USA (933-ZN) and Sinobiological, Inc, USA (10108-H08H). Recombinant proteins of SARS-CoV RBD (40150-V08B2) and SARS-CoV-2 RBD proteins (40592-V08H) were obtained from Sinobiological, Inc. Fluorogenic peptide substrates were obtained from R&D systems, where Mca-YVADAPK(Dnp)-OH (ES007) was used as an angiotensin II like substrate and Mca-RPPGFSAFK(Dnp)-OH(ES005) was a fluorogenic peptide derivative of Bradykinin according to manufacturer's instruction. Nonfluorogenic bradykinin(BK, RPPGFSPFR), des-Arg9-bradykinin (desBK, RPPGFSPF) and angiotensin II (Ang II, DRVYIHPF) peptides were purchased from Genscript, Inc, USA. ACE2 specific inhibitor MLN-4760 and various protease inhibitors AEBSF, pepstatin A and leupeptin were obtained from Sigma-Aldrich, Inc. Fluorogenic peptide Mca-Pro-Leu-OH (Bachem, USA, M-1975) was used as calibration standard to obtain the molarity (pmol) to relative fluorescence unit (RFU) conversion factor on Synergy H1 fluorescent plate reader.
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2

Quantitative SARS-CoV-2 RBD Binding Assay

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Recombinant proteins of human ACE2 extracellular enzymatic domain were purchased from R&D systems(933-ZN) and Sinobiological, Inc(10108-H08H). Recombinant proteins of SARS-CoV RBD (40150-V08B2) and SARS-CoV-2 RBD proteins (40592-V08H) were obtained from Sinobiological, Inc. Fluorogenic peptide substrates were obtained from R&D systems, where Mca-YVADAPK(Dnp)-OH (ES007) was used as an angiotensin II like substrate and Mca-RPPGFSAFK(Dnp)-OH(ES005) was a fluorogenic peptide derivative of Bradykinin according to manufacturer’s instruction. Non-fluorogenic bradykinin(BK, RPPGFSPFR), des-Arg9-bradykinin (desBK, RPPGFSPF) and angiotensin II (Ang II, DRVYIHPF) peptides were purchased from Genscript, Inc. Fluorogenic peptide Mca-Pro-Leu-OH (Bachem, M-1975) was used as calibration standard to obtain the molarity (pmol) to relative fluorescence unit (RFU) conversion factor on Synergy H1 fluorescent plate reader.
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