COVID Testing Kits
Cayman Chemical SARSCoV2 nsp14 Methyltrnsf
Source: Recombinant SARS-CoV-2 N-terminal GST-tagged nsp14 expressed in E. coli • Amino acids: 1-527 (full length) • MW: 86.3 kDa
Aat Bioquest Amplite® Rapid Colorimetric Maleimide Quantitation Kit
A variety of crosslinking reagents with a maleimide group are widely used for crosslinking proteins to proteins, or proteins to other biomolecules. A key challenge in maleimide crosslinking technology has been the quantitation of maleimide linked to a single protein or antibody. Maleimides can be directly assayed spectrophotometrically at 302 nm. However, the small extinction coefficient of 620 M-1cm-1 renders this assay insensitive, and the assay is further complicated by the protein absorbance at the same wavelength. AAT Bioquest's Amplite® Rapid Colorimetric Maleimide Quantitation Kit provides a rapid and accurate method to quantify maleimide using our proprietary maleimide sensor Maleimide Blue™ with the maximum absorbance at ~780nm. The principle of this assay is that Maleimide Blue™ reacts with the maleimide-linked sample, and the resulted product is run through a single spin column to remove the excess sensor. The absorption spec
IVANO BIOSCIENCE Validated SARS-CoV-2 pseudovirus, Alpha B.1.1.7 variant, 100 µL of pseudovirus enables 100 reactions in a 96-well plate
Recombinant 3rd-generation lentiviral vector displaying the spike protein (S) of the SARS-CoV-2, Alpha B.1.1.7 variant. It incorporates a luciferase reporter gene.Performance: 1 µL per well (96-well plate) produces a signal-to-background ratio of 10³ RLU, according to the manufacturer’s protocol. 100 µL = 100 reactions.Validation: Validated lot-to-lot for infection and neutralization.Applications: This pseudovirus can be used to investigate virus entry, receptor recognition, and cellular tropism, to perform functional studies, to screen anti-S drugs and neutralizing antibodies, or to assess vaccine efficacy. For Research Use Only.Biosafety: Must be handled under BSL-2 conditions. Replication-incompetent and non-pathogenic due to multiple molecular safety modifications.Shipping and storage: Shipped on dry ice and stored at −80 °C. Avoid freeze/thaw cycles. Each shipment includes a complete protocol and a batch-specific quality control report.
Medchemexpress LLC SARS-CoV S HEK293 2ug
Recombinant SARS-CoV spike protein fragment expressed in HEK293 cells with N-terminal 10xHis and C-terminal Myc tags. The product corresponds to residues R306-F527 (accession P59594) and is provided in small research pack sizes for use in binding studies, antibody characterization, and assay development.
- Expressed in HEK293 for human-like glycosylation.
- Contains N-terminal His and C-terminal Myc tags for purification and detection.
- Corresponds to residues R306-F527 for a defined functional domain.
- Available in microgram pack sizes suitable for assay optimization.
- Comes with datasheet, certificate of analysis, and SDS for quality assurance.
Cayman Chemical SARSCoV2 MaIn Protease as 1ea
SARS-CoV-2 Main Protease Assay Buffer has been tested and formulated to work exclusively with Cayman’s SARS-CoV-2 Main Protease Inhibitor Screening Assay Kit (Item No. 701960).
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
A cGAS inhibitor (IC50 0.11 UM) inhibits dsDNA-induced IFN-B1-dependent gene expression in a reporter assay reduces basal Ifnb1 mRNA expression in BMDMs generated from the Trex1-/- mouse model of Aicardi-Goutières syndrome
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
Source: Active recombinant C-terminal rabbit IgG1 Fc-tagged SARS-CoV-2 Spike glycoprotein receptor binding domain L452R, T478K variant expressed in HEK293 cells • Amino acids: 21-243, 319-541 • MW: 50.4 kDa
Sino Biological SARS-CoV-2 (XEC) Spike S1+S2 trimer Protein (ECD, His tag)(MALS-verified)
A DNA sequence encoding the SARS-CoV-2 (XEC) Spike S1+S2 (YP_009724390.1, with mutations T19I, R21T, T22N, L24S, del25/27, S50L, F59S, del69/70, V127F, G142D, del144/144, F157S, R158G, N211I, del212/212, V213G, L216F, H245N, A264D, I332V, G339H, K356T, S371F, S373P, S375F, T376A, R403K, D405N, R408S, K417N, N440K, V445H, G446S, N450D, L452W, L455S, F456L, N460K, S477N, T478K, N481K, del483/483, E484K, F486P, Q493E, Q498R, N501Y, Y505H, E554K, A570V, D614G, P621S, H655Y, N679K, P681R, R682G, R683S, R685S, N764K, D796Y, F817P, A892P, A899P, S939F, A942P, Q954H, N969K, K986P, V987P, V1104L, P1143L and furin cleavage site mutants) expressed with the bacteriophage T4 fibritin and a polyhistidine tag at the C-terminus. The mutations were identified in the SARS-CoV-2 variant (known as variant XEC).
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
An ENPP1 inhibitor inhibits the hydrolysis of 23-cGAMP and AMP-pNP (Kis ≤100 and 100-1000 nM respectively in enzyme assays) enhances transcription of the gene encoding IFN-B in 23-cGAMP-stimulated HFF-1 cells
Cayman Chemical SARSCoV2 SpIke Reagent 100dtn
SARS-CoV-2 Spike Reagent has been tested and formulated to work exclusively with Cayman’s SARS-CoV-2 Neutralizing Antibody SimpleDetect ELISA Kit (Item No. 502220).
Maine Molecular Quality Controls Inc QIAstat-Dx RP SARS-CoV-2 Negative
QIAstat-Dx RP SARS-CoV-2 Negative is intended for use (as applicable) as an external negative quality control to monitor the performance of in vitro laboratory nucleic acid testing procedures for the qualitative detection of bacterial and viral pathogens: Adenovirus, Bocavirus, Coronavirus 229E, Coronavirus HKU1, Coronavirus NL63, Coronavirus OC43, Severe Acute Respiratory-Coronavirus 2 (SARS-CoV-2), Human Metapneumovirus A+B, Influenza A, Influenza A H1, Influenza A H1N1 pdm09, Influenza A H3, Influenza B, Parainfluenza virus 1, Parainfluenza virus 2, Parainfluenza virus 3, Parainfluenza virus 4, Respiratory Syncytial Virus A+B, Rhinovirus/Enterovirus, Bordetella pertussis, Chlamydophila pneumoniae, Legionella pneumophila and Mycoplasma pneumoniae using the QIAstat-Dx Respiratory SARS-CoV-2 Panel, QIAstat-Dx Respiratory Panel Plus and QIAstat-Dx Respiratory Panel Mini on the QIAstat-Dx systems.
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
A cGAS inhibitor (IC50 0.11 UM) inhibits dsDNA-induced IFN-B1-dependent gene expression in a reporter assay reduces basal Ifnb1 mRNA expression in BMDMs generated from the Trex1-/- mouse model of Aicardi-Goutières syndrome
Cayman Chemical SARSCoV2 PapaInlIke Protea
Source: Active recombinant SARS-CoV-2 N-terminal His-tagged papain-like protease expressed in E. coli • Amino acids: 1,564-1,880 • MW: 36.8 kDa
Cayman Chemical SARSCoV2 SpIke Reagent120uL
A quenched fluorescent probe for GST activity can be used in adherent or suspension cells cell or tissue lysates or purified enzyme preparations upon deprotection by GSTs rhodamine 110 is released and its fluorescence can be quantified using ex/em maxima of 496/520 nm respectively