Recombinant Human Immunoglobulin heavy constant gamma 1 (IGHG1) (D239E,L241M), partial (Active)

Recombinant Human Immunoglobulin heavy constant gamma 1 (IGHG1) (D239E,L241M), partial (Active) — Constant region of immunoglobulin (Ig) heavy chains. Purity >95%.

SKU: BCACP-001087 Category:
Product SKUBCACP-001087
Product DescriptionRecombinant Human Immunoglobulin heavy constant gamma 1 (IGHG1) (D239E, L241M) protein is expressed from Mammalian cell with Tag-Free. It contains 104-330aa(D239E,L241M). [Accession | P01857].
Uniprot No.P01857
Gene NamesIGHG1
PurityGreater than 95% as determined by SDS-PAGE.
Expression SystemMammalian cell
Expression Region104-330aa(D239E,L241M)
SpeciesHomo sapiens (Human)
Tag InfoTag-Free
Molecular weight25.9 kDa
ActivitySpecific activity as determined by the production of urea during the hydrolysis of arginine is greater than 30000 pmol/min/?g.
BufferLyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0
StorageStore at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Alternative NamesIGHG1; Immunoglobulin heavy constant gamma 1; Ig gamma-1 chain C region; Ig gamma-1 chain C region EU; Ig gamma-1 chain C region KOL; Ig gamma-1 chain C region NIE

Function

Constant region of immunoglobulin (Ig) heavy chains. Igs are membrane-bound or secreted glycoproteins produced by B lymphocytes.

Product Specifications

Recombinant Human Immunoglobulin heavy constant gamma 1 (IGHG1) (D239E,L241M), partial (Active) — Constant region of immunoglobulin (Ig) heavy chains. Purity >95%. Suitable for ELISA and Western Blot applications.

Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.

Biological Activity: Specific activity as determined by the production of urea during the hydrolysis of arginine is greater than 30000 pmol/min/?g.

Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.

Protein Biology

Function

Constant region of immunoglobulin (Ig) heavy chains. Igs are membrane-bound or secreted glycoproteins produced by B lymphocytes. In the recognition phase of humoral immunity, the membrane-bound Igs serve as receptors, which upon binding to a specific antigen trigger the clonal expansion and differentiation of B lymphocytes into Ig-secreting plasma cells. Secreted Igs known as antibodies mediate the effector phase of humoral immunity by blocking the interaction of infectious antigens with cellular receptors (via the antigen-binding region) and eliciting effector mechanisms that lead to pathogen neutralization (via the constant region) (PubMed:17576170, PubMed:20176268, PubMed:22158414). The antigen-binding region is formed by the variable domain of one heavy chain paired with the variable domain of its associated light chain. Each Ig molecule has two antigen-binding sites with remarkable affinity for a particular antigen due to V-(D)-J rearrangement, somatic hypermutations and affinity maturation of the variable domains upon antigen exposure (PubMed:17576170, PubMed:20176268, PubMed:22158414). The constant region defines the Ig isotype that perform distinct sets of effector functions. B cells diversify and rearrange their Ig constant regions through class-switch recombination, a process by which the constant region is switched from one Ig isotype to another, namely from IgM and IgD to IgG, IgA and IgE (PubMed:17576170, PubMed:20176268, PubMed:22158414). The constant region of Ig gamma-1 (IgG1) isotype interacts (via the fragment crystallizable, Fc) with receptors on innate immune cells and the complement system to mediate humoral effector functions, including antibody-dependent cellular cytotoxicity or phagocytosis, complement-dependent cytotoxicity and inflammatory responses

Subcellular Location

Cell membrane (Single-pass membrane protein)

Disease Association

Multiple myeloma (MM) : A malignant tumor of plasma cells usually arising in the bone marrow and characterized by diffuse involvement of the skeletal system, hyperglobulinemia, Bence-Jones proteinuria and anemia. Complications of multiple myeloma are bone pain, hypercalcemia, renal failure and spinal cord compression. The aberrant antibodies that are produced lead to impaired humoral immunity and patients have a high prevalence of infection. Amyloidosis may develop in some patients. Multiple myeloma is part of a spectrum of diseases ranging from monoclonal gammopathy of unknown significance (MGUS) to plasma cell leukemia. [The disease is caused by variants affecting the gene represented in this entry. A chromosomal aberration involving IGHG1 is found in multiple myeloma. Translocation t(11;14)(q13;q32) with the IgH locus. Translocation t(11;14)(q13;q32) with CCND1; translocation t(4;14)(p16.3;q32.3) with FGFR3; translocation t(6;14)(p25;q32) with IRF4]

Subunit

(Microbial infection) Interacts (via Fc region) with S. aureus spa/protein A (via B domain); spa interferes with the formation of IgG:C1q complexes preventing complement activation and protecting bacteria from phagocytic killing

Gene: IGHG1  |  Organism: Homo sapiens  |  Synonyms: Ig gamma-1 chain C region; Ig gamma-1 chain C region EU; Ig gamma-1 chain C region KOL; Ig gamma-1 chain C region NIE
Key Publications

Frequently Asked Questions

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Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.

What is the shipping and delivery time?

Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.

How should this product be stored?

Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.

What quality controls are performed on your products?

Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.

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