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F9890

Sigma-Aldrich

Anti-Human IgG4−FITC antibody, Mouse monoclonal

clone HP-6025, purified from hybridoma cell culture

Synonym(s):

Monoclonal Anti-Human IgG4

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About This Item

UNSPSC Code:
12352203
NACRES:
NA.46

biological source

mouse

conjugate

FITC conjugate

antibody form

purified from hybridoma cell culture

antibody product type

secondary antibodies

clone

HP-6025, monoclonal

form

buffered aqueous solution

storage condition

protect from light

technique(s)

dot immunobinding: 1:64 using using a 4-8 μg dot of human IgG4

isotype

IgG1

shipped in

dry ice

storage temp.

−20°C

target post-translational modification

unmodified

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General description

IgG4 (Immunoglobulin G4) is produced by T helper 2 cytokines.

Specificity

Monoclonal Anti-Human IgG4 is specific for the IgG4 subclass and nonreactive with IgG1, IgG2 and IgG3 in an ELISA.

Application

Monoclonal Anti-Human IgG4-FITC antibody produced in mouse has been used in immunohistofluorescence and immunofluorescence assay.
The IUIS/WHO2 study singled out this monoclonal antibody as one of the most widely applicable IgG4 specific monoclonal antibodies. Monoclonal Anti-Human IgG4 may be used for the identification of the IgG4 subclass by various immunoassays including: ELISA, Imprint Immunofixation (IIF), Immunofluorometric Assay (IFMA), Hemagglutination (HA), Hemagglutination Inhibition (HAI), Particle Counting Immunoassay (PACIA), and detection of cytoplasmic IgG.

Biochem/physiol Actions

IgG4 (Immunoglobulin G4) antibody has reduced affinity for C1q (first component of complement q) and hence its anti-inflammatory activity differs from that of the other IgG subclasses. IgG4 antibodies are known to actively interchange Fab arms with another molecule, resulting in recombined antibodies with two different binding specificities. This exchange is considered as an important biological mechanism that contributes to its anti-inflammatory activity. IgG4 antibodies are normally noninflammatory, but autoreactive IgG4 antibodies are known to be associated with Immunoglobulin G4 (IgG4)-related disease (IgG4-RD), characterized by infiltrating lymphoplasmacytic cells and elevated serum IgG4.

Physical form

Solution in 0.01 M phosphate buffer, pH 8.0, containing 1% inactivated bovine serum albumin and 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Characterization of a subtype of autoimmune encephalitis with anti?contactin-associated protein-like 2 antibodies in the cerebrospinal fluid, prominent limbic symptoms, and seizures.
Joubert B, et al.
JAMA Neurology, 73(9), 1115-1124 (2016)
An immunofluorescence test for phospholipase-A2-receptor antibodies and its clinical usefulness in patients with membranous glomerulonephritis.
Hoxha E, et al.
Nephrology, Dialysis, and Transplantation, 26(8), 2526-2532 (2011)
Satoru Kudose et al.
Kidney international reports, 8(11), 2416-2420 (2023-11-29)
Immunofluorescence (IF) staining for IgG subclasses plays an important role in the classification of kidney disease. However, widely used IgG subclass-specific antibodies are now commercially unavailable. Thus, we compared alternative antibodies for performing IgG subclass staining. A total of 21
Xiao L Chang et al.
Nature communications, 12(1), 3343-3343 (2021-06-09)
In the absence of a prophylactic vaccine, the use of antiretroviral therapy (ART) as pre-exposure prophylaxis (PrEP) to prevent HIV acquisition by uninfected individuals is a promising approach to slowing the epidemic, but its efficacy is hampered by incomplete patient
Xiao L Chang et al.
PLoS pathogens, 18(3), e1010396-e1010396 (2022-04-01)
The CCR5-specific antibody Leronlimab is being investigated as a novel immunotherapy that can suppress HIV replication with minimal side effects. Here we studied the virological and immunological consequences of Leronlimab in chronically CCR5-tropic HIV-1 infected humans (n = 5) on

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