Sandwich ELISA detection of recombinant nucleocapsid protein(s) derived from different strains of SARS-CoV-2 virus (ie., Wild type; BA.2 / BA.5 Omicron variant) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (HRP) (GTX635686-01) (1 μg/mL)

Sandwich ELISA detection of recombinant full-length SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag protein (GTX135592-pro) using SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) as capture antibody at concentration of 5 μg/mL and HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL249] (GTX635678) as detection antibody at concentration of 1 μg/mL.

Sandwich ELISA detection of recombinant full-length SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag protein (GTX135592-pro) using SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) as capture antibody at concentration of 5 μg/mL and HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL455] (GTX635688) as detection antibody at concentration of 1 μg/mL.

Detection of nucleoproteins (NP) derived from SARS-CoV-2 (S), Influenza A virus (A), and Influenza B virus (B) by lateral flow assay using the monoclonal antibody pair. “C” stands for control.
Pair for S :
Capture : SARS-CoV-2 (COVID-19) Nucleocapsid antibody [HL455] (GTX635688)
Detection : SARS-CoV-2 (COVID-19) Nucleocapsid antibody [HL5511] (GTX635689)
Pair for A:
Capture : Influenza A virus Nucleoprotein antibody [HL1952] (GTX637789)
Detection : Influenza A virus Nucleoprotein antibody [HL1078] (GTX636199)
Pair for B :
Capture : Influenza B virus Nucleoprotein antibody [HL1073] (GTX636194)
Detection : Influenza B virus Nucleoprotein antibody [HL1068] (GTX636099)

Samples (40 ng) :
1. Lysis buffer
2. Mixture of SARS-CoV-2 (GTX135592-pro), Flu A-H1N1 (GTX135904-pro), and Flu B Nucleoprotein (GTX135867-pro)

Non-transfected (–) and transfected (+) 293T whole cell extracts (30 μg) were separated by 10% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) Nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:5000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.

Indirect ELISA analysis performed by coating plate with recombinant full-length SARS-CoV-2 (COVID-19) nucleocapsid protein (GTX135592-pro) (50 ng). Coated protein probed with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (4.8*10⁻⁶ ~ 20 nM). Rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) detected bound primary antibody.
EC50 : 0.014 nM

Indirect ELISA analysis performed by coating plate with recombinant SARS-CoV-2 (COVID-19) nucleocapsid protein, B.1.1.529 / Omicron variant, His tag (GTX136779-pro) (21.91-0.34 nM). Coated protein was probed with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (GTX635686), SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689), SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5410] (GTX635685), SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL455] (GTX635688), and SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL344] (GTX635679) (1 μg/mL). Goat anti-rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) was used to detect bound primary antibody.

SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] detects SARS-CoV-2 (COVID-19) nucleocapsid protein by immunohistochemical analysis.
Sample: Mock (GTX435670) and SARS-CoV-2 (COVID-19) Nucleocapsid transfected 293T cell FFPE Cell Pellet Block (GTX435641).
Green: SARS-CoV-2 (COVID-19) nucleocapsid stained by SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:1000.
Blue: Fluoroshield with DAPI (GTX30920).
Antigen Retrieval: Citrate buffer, pH 6.0, 15 min

Indirect ELISA analysis performed by coating plate with recombinant SARS-CoV-2 Nucleocapsid protein (D63G, R203M, D377Y, R385K), His Tag (delta variant) and SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag (wild type) (GTX135592-pro) (21.91-0.34 nM). Coated protein was probed with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (1 μg/mL). Goat anti-rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) was used to detect bound primary antibody.

Sandwich ELISA detection of recombinant nucleocapsid protein(s) derived from different strains of SARS-CoV-2 virus (ie., Wild type; B.1.1.529 Omicron variant) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (GTX635686) (1 μg/mL)
Please notice that GTX635686 needs to be conjugated to HRP to function as the detection antibody when paired with GTX635689. Please contact us for custom HRP-conjugated antibody.

Sandwich ELISA detection of recombinant full-length SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag protein (GTX135592-pro) using SARS-CoV-2 (COVID-19) nucleocapsid antibody [GT113] (GTX635808) as capture antibody at concentration of 5 μg/mL and HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) as detection antibody at concentration of 1 μg/mL.
Sensitivity : 39.06 pg/mL

Non-transfected (–) and transfected (+) 293T whole cell extracts (30 μg) were separated by 10% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:5000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody, and the signal was developed with Trident ECL plus-Enhanced.

Sandwich ELISA detection of recombinant SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag (GTX135357-pro) using antibodies as below.
Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (HRP) (GTX635686-01) (1 μg/mL)

SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] detects SARS-CoV-2 (COVID-19) nucleocapsid protein by immunofluorescent analysis.
Sample: Mock and transfected 293T cells were fixed in 4% paraformaldehyde at RT for 15 min.
Green: SARS-CoV-2 (COVID-19) nucleocapsid stained by SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:1000.
Blue: Fluoroshield with DAPI (GTX30920).

SARS-CoV-2 (COVID-19) nucleocapsid protein, B.1.1.529 / Omicron variant, His tag (0.5 μg), expressed by HEK293 cells (GTX136779-pro) or E. coli (GTX03400-pro), were separated by 10% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:20000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.

SARS-CoV-2 (COVID-19) nucleocapsid protein, B.1.1.529 / omicron variant, His tag (1 μg, GTX136779-pro) were separated by 12% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:5000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.

Sandwich ELISA detection of recombinant SARS-CoV-2 (COVID-19) nucleocapsid protein, His tag (GTX135592-pro) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (HRP) (GTX635686-01) (1 μg/mL)

Sandwich ELISA detection of recombinant full-length Nucleocapsid proteins derived from different strains of SARS-CoV-2 (COVID-19) (Wild type or B.1.617.2 delta variant) using antibodies as below.
Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (GTX635686) (1 μg/mL).

Please notice that GTX635686 needs to be conjugated to HRP to function as the detection antibody when paired with GTX635689. Please contact us for custom HRP-conjugated antibody.

Sandwich ELISA detection of recombinant nucleocapsid protein(s) derived from different strains of SARS-CoV-2 virus (ie., Wild type; BF.7 Omicron variant; BQ.1 Omicron variant) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL455] (GTX635688) (5 μg/mL)
Detection: HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (1 μg/mL)
Please notice that GTX635689 needs to be conjugated to HRP to function as the detection antibody when paired with GTX635688. Please contact us for custom HRP-conjugated antibody.

Sandwich ELISA detection of recombinant nucleocapsid protein(s) derived from different strains of SARS-CoV-2 virus (ie., Wild type; BF.7 Omicron variant; BQ.1 Omicron variant) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (5 μg/mL)
Detection: HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL448] (GTX635686) (1 μg/mL)
Please notice that GTX635686 needs to be conjugated to HRP to function as the detection antibody when paired with GTX635689. Please contact us for custom HRP-conjugated antibody.

Indirect ELISA analysis was performed by coating the plate with recombinant SARS-CoV-2 (COVID-19) Nucleocapsid protein, Omicron / BA.2 / BA.5 variant, His tag (GTX137219-pro) (21.23-0.31 nM). Coated protein was probed with SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (1 μg/mL). Goat anti-rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) was used to detect the bound primary antibody.

Sandwich ELISA detection of recombinant SARS-CoV-2 (COVID-19) Nucleocapsid protein, Omicron / BA.2 / BA.5 variant, His tag (GTX137219-pro) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL455] (GTX635688) (5 μg/mL)
Detection: HRP-conjugated SARS-CoV-2 (COVID-19) nucleocapsid antibody [HL5511] (GTX635689) (1 μg/mL)
Please notice that GTX635689 needs to be conjugated to HRP to function as the detection antibody when paired with GTX635688. Please contact us for custom HRP-conjugated antibody.

Non-transfected (–) and transfected (+) 293T whole cell extracts (30 μg) were separated by 10% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) Nucleocapsid antibody [HL5511] (GTX635689) diluted at 1:5000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.