Indirect ELISA analysis performed by coating plate with recombinant SARS-CoV-2 (COVID-19) spike S1 subunit protein or recombinant SARS-CoV spike S1 subunit protein (62.5-4000 ng/mL). Coated protein probed with SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) (1 μg/mL). Rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) detected bound primary antibody.

Non-transfected (–) and transfected (+) 293T whole cell extracts (30 μg) were separated by 5% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) diluted at 1:5000. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.

SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) detects SARS-CoV-2 (COVID-19) Spike S1 protein by immunohistochemical analysis of SARS-CoV-2 infected human lung.

The IHC-P was performed by HISTOWIZ.

SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] detects SARS-CoV-2 (COVID-19) Spike S1 protein at cytoplasm by immunofluorescent analysis.
Sample: Mock and transfected transfected 293T cells were fixed in 4% paraformaldehyde at RT for 15 min.
Green: SARS-CoV-2 (COVID-19) Spike S1 stained by SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) diluted at 1:2000.

SARS-CoV-2 (COVID-19) spike antibody [HL6] (GTX635654) detects SARS-CoV-2 (COVID-19) spike protein by flow cytometry analysis.
Sample: 293T cells transfected SARS-CoV-2 (2019-nCoV) Spike.
Blue: Unlabelled sample was used as a control.
Red: SARS-CoV-2 (COVID-19) spike antibody [HL6] (GTX635654) dilution: 1:50.
Acquisition of 20,000 events were collected for FACS analysis.

SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] detects SARS-CoV-2 (COVID-19) Spike S1 protein by immunohistochemical analysis.
Sample: Mock (GTX435670) and SARS-CoV-2 (COVID-19) Spike transfected 293T cell FFPE Cell Pellet Block (GTX435640).
Green: SARS-CoV-2 (COVID-19) Spike S1 stained by SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) diluted at 1:1000.
Blue: Fluoroshield with DAPI (GTX30920).
Antigen Retrieval: Citrate buffer, pH 6.0, 15 min

SARS-CoV-2 (COVID-19) spike antibody [HL6] detects SARS-CoV-2 (COVID-19) spike protein by immunofluorescent analysis.
Sample: Mock and SARS-CoV-2 Spike-transfected 293T cells were fixed in 4% paraformaldehyde at RT for 15 min.
Green: SARS-CoV-2 (COVID-19) spike stained by SARS-CoV-2 (COVID-19) spike antibody [HL6] (GTX635654) diluted at 1:1000.
Blue: Fluoroshield with DAPI (GTX30920).

Sandwich ELISA detection of non-transfected and SARS-CoV-2 spike (full length) transfected 293T whole cell extracts (GTX535664) using GTX632604 as capture antibody at concentration of 5 μg/mL and GTX635654 as detection antibody at concentration of 1 μg/mL. Rabbit IgG antibody (HRP) (GTX213110-01) was diluted at 1:10000 and used to detect the primary antibody.

Indirect ELISA analysis was performed by coating plate with 50 μL of recombinant SARS-CoV-2 (COVID-19) spike S1 subunit protein at concentrations ranging from 0.0625 μg/mL to 4 μg/mL. The coated protein is detected with (GTX635654) at 1 μg/mL. Rabbit IgG antibody (HRP) (GTX213110-01) was diluted at 1:10000 and used to detect the primary antibody.

Indirect ELISA analysis performed by coating plate with recombinant SARS-CoV-2 (COVID-19) spike S1 subunit protein (50 ng). Coated protein probed with SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) (2.4*10⁻⁶ ~ 20 nM). Rabbit IgG antibody (HRP) (GTX213110-01) (1:10000) detected bound primary antibody.
EC50 : 0.251 nM

Non-transfected (–) and transfected (+) 293T whole cell extracts (30 μg) were separated by 5% SDS-PAGE, and the membrane was blotted with SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) 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 spike (trimer) protein using antibodies as below.

Capture: SARS-CoV / SARS-CoV-2 (COVID-19) spike antibody [1A9] (GTX632604) (5 μg/mL)
Detection: SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) (1 μg/mL)

SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) detects SARS-CoV-2 (COVID-19) Spike S1 protein by immunohistochemical analysis of SARS-CoV-2 infected human placenta (left) and normal human placenta (right).

The IHC-P was performed by HISTOWIZ.

Sandwich ELISA detection of recombinant SARS-CoV-2 (COVID-19) Spike S1 protein, His tag (active) (GTX135817-pro) using antibodies as below.

Capture: SARS-CoV-2 (COVID-19) Spike RBD antibody [GT5449] (GTX636042) (5 μg/mL)
Detection: SARS-CoV-2 (COVID-19) Spike S1 antibody [HL6] (GTX635654) (1 μg/mL)