Mfg Part Number
Ab04907-23.0
Vector Labs Ab04907-23.0 Anti-TNF alpha [CNTO-148 (Golimumab)], Rabbit IgG, kappa (100 μg)
Quick Overview
The original format of the antibody was generated by immunizing transgenic mice engineered to express human IgGs with human TNFa.
$570.70
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| Product Class: | Purified |
|---|---|
| Clone ID: | CNTO-148 (Golimumab) |
| Synonyms: | TNF-α; TNFα; TNF; TNFA; TNFSF; Tumor necrosis factor; Cachectin; TNFalpha; TNF-alpha; Tumor necrosis factor ligand superfamily member 2; TNF-a; TNFa; CNTO148; CNTO 148; SIMPONI |
| Amount: | 100 μg |
| Application Codes Clone: | SPR; neutralizing; DSC; in vitro; in vivo; Crystallography; therapeutic |
| Shipping Temperature: | Wet Ice |
| Buffer Composition: | PBS with 0.02% Proclin 300. |
| Original Format: | IgG1 |
| Storage Temperature: | Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C. |
| Chimeric Use Statement: | This chimeric rabbit antibody was made using the variable domain sequences of the original Human IgG1 format, for improved compatibility with existing reagents, assays and techniques. |
| Specificity Statement: | This antibody binds human TNF-alpha. The antibody binds a discontinuous epitope composed of residues in the AA’ loop (Gly24), C strand (Lys65, Gln67T), CD loop (Ser71), EF loop (Glu104, Thr105, Pro106, Glu107, Gly108, Ala111), and GH loop (Arg138, Asp140, Tyr141) of TNF-alpha. |
| Application Notes: | The binding affinity of the IgG1 fragment for soluble human TNFa was measured by surface plasmon resonance (Kd= 18 pM). The binfing affinity of the IgG1 fragment for transmembrane human TNFa was measured by radioimmunoassay (Kd= 1890 pM). The original format of the antibody was neutralizing, as shown by its ability to block the binding of human TNFa to recombinant human TNFR1 (IC50= 3.9 ng/mL) and inhibit human TNFa-mediated cell cytotoxicity (IC50= 3.2ng/mL). Differential scanning calorimetry (DSC) was used to evaluate the conformational and thermal stability of the original format of the antibody and the Fab fragment (primary transition temperature of 74.8 and 74.5°C respectively). The cytotoxic effect of TNFa on the human rhabdomyosarcoma cell line KYM-1D4 was used to compare the neutralization of soluble TNFa and tmTNFa by the original format of the antibody (IC50= 6.5 ng/mL and 162 ng/mL respectively). When using primary human umbilical vein endothelial cells (HUVEC) stimulated with soluble TNFa, the IC50 was 3.9 ng/mL. The original format of the antibody has the inherent capacity to induce antibody-dependent and complement-mediated cell lysis. In vivo, the original format of the antibody at doses of 1 and 10 mg/kg significantly delayed disease progression in a mouse model of human TNFa-induced arthritis when compared with untreated mice. The original format of the antibody also significantly reduced histological scores for arthritis severity and cartilage damage, as well as serum levels of pro-inflammatory cytokines and chemokines associated with arthritis (Shealy et al., 2010; PMID: 20519961). The specificity of the original format of the antibody was confirmed by ELISA analysis (US7250165B2). The crystal structure of the Fv fragment of the antibody in complex with TNFa was determined. The crystal structure showed that the antibody exerts its inhibitory effect by preventing binding of TNFR1 and TNFR2 to TNFa by steric hindrance (Ono et al., 2018; PMID: 29575262). The antibody is used as a therapeutic for diseases like rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis. |
| Brand | Vector Labs |
|---|---|
| UNSPSC | 12161500 |