COVID Testing Kits
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.
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
Sino Biological SARS-COV-2 JN.1 (Omicron) Spike RBD Protein (aa319-529, His & AVI Tag), Biotinylated(HPLC-verified)
A DNA sequence encoding the SARS-CoV-2 Spike RBD (YP_009724390.1, with mutation I332V, G339H, K356T, S371F, S373P, S375F, T376A, R403K, D405N, R408S, K417N, N440K, V445H, G446S, N450D, L452W, L455S, N460K, S477N, T478K, N481K, V483del, E484K, F486P, Q498R, N501Y, Y505H) (Arg319-Lys529) was expressed with a C-terminal polyhistidine tag followed by an AVI tag. The expressed protein was biotinylated in vivo by the Biotin-Protein ligase (BirA enzyme) which is co-expressed. The mutations were identified in the SARS-CoV-2 variant (known as variant JN.1).
Cayman Chemical SARSCoV2 nsp10recombInt 500ug
Recombinant SARS-CoV-2 N-terminal His-tagged nsp10 expressed in E. coli • Amino acids: 1-139 (full length)
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
Source: Active recombinant C-terminal rabbit IgG1 Fc-tagged SARS-CoV-2 surface glycoprotein receptor binding domain N501Y variant expressed in HEK293 cells • Amino acids: 21-243, 319-541 of P0DTC2 • MW: 50.37 kDa
Meso Scale Discovery SPLEX SARSCoV2 N KitQP 25 PL
The S-PLEX SARS-CoV-2 N Kit is a multiplex immunoassay panel for the simultaneous qualitative detection of nucleocapsid protein antigens for SARS-CoV-2 in human serum plasma and saliva This assay utilizes electrochemiluminescence (ECL) on the SECTOR Imager 2400 platform The kit includes a plate coated with capture antibodies detection antibodies conjugated to ruthenium and calibrators and controls needed to run the assay Results are obtained in under 3 hours This assay allows for high throughput SARS-CoV-2 antigen testing
Cayman Chemical SARSCoV2 nsp10recombInt 100ug
Recombinant SARS-CoV-2 N-terminal His-tagged nsp10 expressed in E. coli • Amino acids: 1-139 (full length)
Sino Biological SARS-COV-2 KP.2 (Omicron) Spike RBD Protein (His Tag) (HPLC-verified)
A DNA sequence encoding the SARS-CoV-2 (KP.2) Spike RBD (YP_009724390.1, with mutation I332V, G339H, R346T, K356T, S371F, S373P, S375F, T376A, R403K, D405N, R408S, K417N, N440K, V445H, G446S, N450D, L452W, L455S, F456L, N460K, S477N, T478K, N481K, V483del, E484K, F486P, Q498R, N501Y, Y505H) (Arg319-lys529) was expressed with a polyhistidine tag at the C-terminus. The mutations were identified in the SARS-CoV-2 variant (known as variant KP.2).
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
A BD2 bromodomain inhibitor inhibits BD2 in BRD2 BRD3 BRD4 and BRDT (IC50s 264 98 49 and 214 nM respectively) and is selective for BD2 over BD1 (IC50s 10.96 36.31 70.55 and 50.11 UM for BRD2 BRD3 BRD4 and BDT respectively) in a TR-FRET assay inhibits IFN-Y-induced protein expression of MHC class I in K562 cells at 1 UM reduces the production of anti-KLH IgM antibodies in mice immunized with KLH at 40 mg/kg
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
An activator of Nrf2 signaling increases the expression of Nrf2 target genes and activates HO-1 in CV-1 cells at 100 nM binds to PPARY and PPARa (Kis 344 and 232 nM respectively) and induces PPARY transactivation in SW480 cells inhibits NOS production in isolated mouse macrophages (IC50 0.014 nM) inhibits proliferation of U937 and MCF-7 cells at 300 nM reduces fatty acid synthesis in LiSa-2 human liposarcoma cells at 100 nM reduces tumor growth in a B16 murine melanoma model at 50 Ug/animal twice per day
S2 Media 15x100mm Chameleon COLOREX StrepB (RUO), 10/pk
Chameleon™ COLOREX™ StrepB (RUO) is a selective and differential chromogenic culture medium used for the qualitative determination of Group B Streptococcus (GBS) colonization in pregnant women. This medium supports the growth of hemolytic and nonhemolytic GBS strains. Test specimens include urine, vaginal, or vagino/rectal swabs obtained from pregnant women. For Research Use Only (RUO). Not for use in diagnostic procedures unless Laboratory Developed Test (LDT) validation with the product has been completed. Further identification, susceptibility testing, and epidemiological typing should be performed on suspect colonies.• Product meets CLSI performance criteria.• Chameleon™ COLOREX™ StrepB should be used by trained professionals within a laboratory setting. • For research and development use only (RUO).• Product is not intended for use in the diagnosis or treatment of disease or other human conditions.
Medchemexpress LLC SARS-CoV-2 Plpro/papain-like protease protein (His) | >90.0% | 50 UG
Recombinant His-tagged SARS-CoV-2 papain-like protease (PLpro) supplied as a purified protein for biochemical and enzymatic studies. Supplied as 50 μg of purified protein expressed in E. coli and characterized by reducing SDS-PAGE; intended for enzymology, inhibitor screening, and binding assays.
- High purity (>90%) as determined by reducing SDS-PAGE.
- N-terminal His tag for affinity purification and detection.
- Expressed in E. coli for scalable production.
- Approximate molecular weight 36.8 kDa for identity confirmation.
- Supplied frozen; store at -80°C and avoid repeated freeze-thaw cycles.
- Suitable for enzymatic assays, inhibitor screening, and biochemical characterization.
Cayman Chemical SARSCoV2 SpIke GlycoproteIn
Source: Active recombinant C-terminal rabbit IgG1 Fc-tagged SARS-CoV-2 Spike Glycoprotein Receptor Binding Domain K417N, E484K, N501Y variant expressed in HEK293 cells • Amino acids: 21-243, 319-541 of P0DTC2 • MW: 50.35 kDa
Cayman Chemical SARSCoV2 nutralIzng ntIb 50uL
An N-acyl amide increases the OCR of mitochondria isolated from mouse brown adipose tissue in a Seahorse assay and decreases oligomycin-induced increases in the mitochondrial membrane potential in C2C12 cells indicating mitochondrial uncoupling activity at 50 UM reduces food intake and body weight of diet-induced obese mice at 30 mg/kg for 8 days