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Goat polyclonal antibody to human igg

Manufactured by Abcam
Sourced in United Kingdom

Goat polyclonal antibody to human IgG. This product is a purified immunoglobulin fraction from goat serum, which has been raised against human IgG.

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3 protocols using goat polyclonal antibody to human igg

1

Multiplex Serum Autoantibody Detection

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Recombinant proteins NY-ESO-1, Her-2/neu, MAGE-A4 (Origene, Rockville, US), CA125 (R&D Systems) and MAGE-A3, MAGE-A10 (Abnova, Taipei, Taiwan) were diluted in Carbonate Coating Buffer (Invitrogen, Prague, Czech Republic) to a final concentration of 1 μg/ml and coated to 96-well plates overnight at 4°C. Plates were blocked for 1 hour with Assay Buffer (Invitrogen, Carlsbad, CA). Patients and control sera diluted to 1:50, 1:100 and 1:200 were incubated in the antigen-coated wells for 2 h. Plates were then incubated with secondary antibody (goat polyclonal antibody to human IgG, Abcam, Cambridge, UK) for 1 hour. TMB (Invitrogen) was used as a substrate. Reaction was stopped after 20 minutes by adding Stop Solution (Invitrogen). Plates were immediately read with absorbance at 450 nm. As a positive control the Cytomegalovirus Glycoprotein B protein was used. The cutoff value designating positive reaction was assessed as the mean OD of 15 sera obtained from healthy controls (NHS) + 3SD.
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2

ELISA for Detecting Anti-PSA and Anti-MAGE-3 Antibodies

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The recombinant proteins PSA and MAGE-3 (Abnova, Taipei, Taiwan) were diluted in Carbonate Coating Buffer (Life Technologies) to a final concentration of 1 μg/ml and were adhered to 96-well plates overnight at 4°C. The plates were blocked for 1 hour with Assay Buffer (Life Technologies), and then human sera diluted to 1:50, 1:100 and 1:200 were incubated in the antigen-coated wells for 2 h. The plates were then incubated with secondary antibody (goat polyclonal antibody to human IgG; Abcam, Cambridge, UK) for 1 hour. TMB substrate (Life Technologies) was then added and incubated for 20 minutes. The reaction was stopped by adding Stop Solution (Invitrogen, Prague, Czech Republic), and the plates were immediately read at an absorbance of 450 nm. As a positive control, cytomegalovirus glycoprotein B was used. The cutoff value designating a positive reaction was assessed as the mean OD of 15 healthy control human sera (NHS) + 3SD.
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3

Detecting Tumor Antigens in NSCLC Serum

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The presence of antibodies against the three tumor antigens HER2/neu, NY-ESO-1, and MAGE-A4 in serum of patients with NSCLC and controls was detected by ELISA as adopted from Gnjatic et al., 13 Long et al., 14 and Stockert et al. 15 The recombinant proteins NY-ESO-1, HER-2/neu, and MAGE-A4 (Origene) were diluted in carbonate coating buffer (Invitrogen, Carlsbad, CA) to a final concentration of 1 mg/mL and coated to 96-well plates overnight at 4 C. Plates were blocked for 1 hour with Assay Buffer (Invitrogen). Human sera diluted to 1:100 and 1:200 were incubated in the antigen-coated wells for 2 hours. Plates were then incubated with secondary antibody (goat polyclonal antibody to human IgG [Abcam, Cambridge, United Kingdom]) for 1 hour. Tetramethylbenzidine substrate (Invitrogen) was added and incubated for 20 minutes. The reaction was stopped by adding Stop Solution (Invitrogen). Plates were immediately read with absorbance at 450 nm. As a positive control, the cytomegalovirus glycoprotein B protein was used.
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