InVivoPlus human IgG1 isotype control

Clone Catalog # Category
N/A BP0297 Isotype Controls
$455 - $4225

About InVivoPlus human IgG1 isotype control

The human IgG1 isotype control antibody is purified from human myeloma serum and is of unknown specificity. This antibody is suitable for use as a non-targeting isotype control in various in vitro and in vivo studies. It can also be used as a negative control in various diagnostic applications such as ELISA, Western blot, immunofluorescence, immunohistochemistry, immunoprecipitation, and flow cytometry. For research use only.

InVivoPlus human IgG1 isotype control Specifications

Isotype

Human IgG1, κ

Recommended InVivoPure Dilution Buffer InVivoPure pH 7.0 Dilution Buffer(IP0070)
Endotoxin
  • <1EU/mg (<0.001EU/μg)
  • Determined by LAL gel clotting assay
Purity
  • >95%
  • Determined by SDS-PAGE
Aggregation
  • <5%
  • Determined by DLS
Formulation
  • PBS, pH 7.0
  • Contains no stabilizers or preservatives
Sterility

0.2 µm filtration

Production

Purified from human myeloma serum

Purification

Protein A

Storage

The antibody solution should be stored undiluted at 4°C, and protected from prolonged exposure to light. Do not freeze.

Human Pathogen Test Results:
  • Human immunodeficiency virus: Negative
  • Hepatitis B virus: Negative
  • Hepatitis C virus: Negative
  • Syphilis: Negative
Murine Pathogen Test Results:
  • Mouse Norovirus: Negative
  • Mouse Parvovirus: Negative
  • Mouse Minute Virus: Negative
  • Mouse Hepatitis Virus: Negative
  • Reovirus Screen: Negative
  • Lymphocytic Choriomeningitis virus: Negative
  • Lactate Dehydrogenase-Elevating Virus: Negative
  • Mouse Rotavirus: Negative
  • Theiler's Murine Encephalomyelitis: Negative
  • Ectromelia/Mousepox Virus: Negative
  • Hantavirus: Negative
  • Polyoma Virus: Negative
  • Mouse Adenovirus: Negative
  • Sendai Virus: Negative
  • Mycoplasma Pulmonis: Negative
  • Pneumonia Virus of Mice: Negative
  • Mouse Cytomegalovirus: Negative
  • K Virus: Negative
Molecular Weight

150 kDa

Application References

InVivoMAb human IgG1 isotype control

Li, M., et al. (2019). "Genomic ERBB2/ERBB3 mutations promote PD-L1-mediated immune escape in gallbladder cancer: a whole-exome sequencing analysis." Gut 68(6): 1024-1033. PubMed OBJECTIVES: Patients with gallbladder carcinoma (GBC) lack effective treatment methods largely due to the inadequacy of both molecular characterisation and potential therapeutic targets. We previously uncovered a spectrum of genomic alterations and identified recurrent mutations in the ErbB pathway in GBC. Here, we aimed to study recurrent mutations of genes and pathways in a larger cohort of patients with GBC and investigate the potential mechanisms and clinical significance of these mutations. DESIGN: We performed whole-exome sequencing (WES) in 157 patients with GBC. Functional experiments were applied in GBC cell lines to explore the oncogenic roles of ERBB2/ERBB3 hotspot mutations, their correlation with PD-L1 expression and the underlying mechanisms. ERBB inhibitors and a PD-L1 blocker were used to evaluate the anticancer activities in co-culture systems in vitro and in vivo. RESULTS: WES identified ERBB2 and ERBB3 mutations at a frequency of 7%-8% in the expanded cohort, and patients with ERBB2/ERBB3 mutations exhibited poorer prognoses. A set of in vitro and in vivo experiments revealed increased proliferation/migration on ERBB2/ERBB3 mutation. Ectopic expression of ERBB2/ERBB3 mutants upregulated PD-L1 expression in GBC cells, effectively suppressed normal T-cell-mediated cytotoxicity in vitro through activation of the PI3K/Akt signalling pathway and contributed to the growth and progression of GBC in vivo. Treatment with an ERBB2/ERBB3 inhibitor or a PD-L1 monoclonal antibody reversed these immunosuppressive effects, and combined therapy revealed promising therapeutic activities. CONCLUSIONS: ERBB2/ERBB3 mutations may serve as useful biomarkers in identifying patients who are sensitive to ERBB2/ERBB3 inhibitors and PD-L1 monoclonal antibody treatment. TRIAL REGISTRATION NUMBER: NCT02442414;Pre-results.

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