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AB18599

HRP Anti-Protein G antibody

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(1 Publication)

Chicken Polyclonal Protein G antibody - conjugated to HRP. Suitable for ELISA, WB and reacts with Recombinant fragment - Streptococcus sp. 'group G', Streptococcus sp. 'group G' samples. Cited in 1 publication.

View Alternative Names

Immunoglobulin G-binding protein G, IgG-binding protein G, spg

Key facts

Host species

Chicken

Clonality

Polyclonal

Isotype

IgY

Conjugation

HRP

Excitation/Emission
Carrier free

No

Reacts with

Streptococcus sp. 'group G'

Applications

ELISA, WB

applications

Reactivity data

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Purification notes
After multiple immunizations in Freund’s adjuvant, eggs were collected and delipidated. Antibodies were immunoaffinity purified off protein G agarose and conjugated with horseradish peroxidase (HRP).
Storage buffer
pH: 7 Preservative: 0.01% Thimerosal (merthiolate) Constituents: 1.19% HEPES, 0.58% Sodium chloride, 0.2% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Protein G also known as IgG-binding protein is a cell wall protein from Streptococcus species. This protein weighs approximately 22 kDa which you might also know as protein G molecular weight (protein G MW). Protein G size allows it to bind specifically to immunoglobulin G (IgG) and other subclasses. Researchers often clone and express protein G recombinantly resulting in wide availability of recombinant protein G. Its expression primarily occurs in bacterial cell cultures for easy purification and use in laboratory research.
Biological function summary

Protein G plays a role in immune evasion by binding to the Fc region of IgG antibodies. This binding limits the immune system's ability to clear bacterial infections by preventing antibody-mediated opsonization and phagocytosis. Protein G can also form part of a larger immobilization complex in various experimental setups aiding in the purification and detection of antibodies. Protein G HRP conjugates further extend its utility in assay systems by enabling colorimetric detection.

Pathways

The interaction between protein G and IgG significantly impacts the immune response pathways. The binding of protein G to the Fc region of IgG interferes with pathways involving IgG-mediated activation of Fc receptors on immune cells. This affects signaling pathways like ADCC (antibody-dependent cellular cytotoxicity) and phagocytosis. Protein A is another bacterial protein that binds IgG similarly though it differs in affinity and subclass specificity.

Protein G's interaction with IgG relates to conditions involving bacterial infections and immune system evasion mechanisms. It impacts conditions like bacterial endocarditis by providing bacteria a means to escape immune detection. By binding IgG and interfering with the normal immune function protein G might indirectly affect proteins such as complement components. These interactions underline the importance of understanding protein G's function in designing therapeutic interventions in bacterial infections.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Cell host & microbe 24:625-636.e5 PubMed30449314

2018

Mitochondria-Derived Vesicles Deliver Antimicrobial Reactive Oxygen Species to Control Phagosome-Localized Staphylococcus aureus.

Applications

Unspecified application

Species

Unspecified reactive species

Basel H Abuaita,Tracey L Schultz,Mary X O'Riordan
View all publications

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