HLA G Antibody (MEM-G/1) - BSA Free
Novus Biologicals, part of Bio-Techne | Catalog # NB500-302
Conjugate
Catalog #
Key Product Details
Validated by
Biological Validation
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Western Blot
Cited:
IF/IHC, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Western Blot
Label
Unconjugated
Antibody Source
Monoclonal Mouse IgG1 Clone # MEM-G/1
Format
BSA Free
Concentration
1 mg/ml
Product Specifications
Immunogen
HLA-A2.1/human beta2-microglobulin double transgenic mice were immunized with murine L cells transfected with both human beta2-microglobulin and HLA G Antibody (G233)
Localization
Cell Membrane
Specificity
The antibody MEM-G/1 reacts with denaturated HLA-G heavy chain. HLA-G belongs to the MHC Class I molecules (MHC Class Ib; nonclassical) and it is expressed on the surface of trophoblast cells.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1
Scientific Data Images for HLA G Antibody (MEM-G/1) - BSA Free
Immunohistochemistry: HLA G Antibody (MEM-G/1) - BSA Free [NB500-302]
Immunohistochemistry: HLA G Antibody (MEM-G/1) [NB500-302] - ELA affects first trimester placental explant trophoblast proliferation. HLA-G immunostaining (brown color) indicates the location of extravillous trophoblasts. In control explants (left panel) almost all villous cytotrophoblasts proliferate, while this is much less apparent in explants treated with ELA (0.25nM, right panel). Image collected and cropped by CiteAb from the following publication (https://www.nature.com/articles/s41598-019-55650-5) licensed under a CC-BY license.Western Blot: HLA G Antibody (MEM-G/1)BSA Free [NB500-302]
Western Blot: HLA G Antibody (MEM-G/1) [NB500-302] - Using the Biotin direct conjugate analysis (reducing conditions) of HLA-G1 in HLA-G1 transfectants using the antibody MEM-G/1 biotin.Immunohistochemistry: HLA G Antibody (MEM-G/1) - BSA Free [NB500-302]
Immunohistochemistry: HLA G Antibody (MEM-G/1) [NB500-302] - Fig. 1B - first-trimester placenta (paraffin-embedded sections)Applications for HLA G Antibody (MEM-G/1) - BSA Free
Application
Recommended Usage
Immunohistochemistry
1:60 - 1:100
Immunohistochemistry-Paraffin
1:60 - 1:100
Western Blot
1-2 ug/ml
Application Notes
Immunohistochemistry (paraffin sections) incubation: 1 h at RT; positive tissue: human placenta - extravillous cytotrophoblast, heat retrieval in 0.01M citrate buffer (4x2 min. in microwave oven). Use in ICC/IF reported in scientific literature (PMID: 27849611).
Formulation, Preparation, and Storage
Purification
Protein A purified
Formulation
PBS (pH 7.4)
Format
BSA Free
Preservative
0.9% Sodium Azide
Concentration
1 mg/ml
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store at 4C. Do not freeze.
Background: HLA-G
Discovered in cytotrophoblasts, HLA-G is involved in fetal maternal immune tolerance and some studies have linked its downregulation with severe preeclampsia (3). HLA-G mediated immune suppression works by impeding cell proliferation, differentiation, cytotoxicity, cytokine secretion and chemotaxis; and activation of regulatory cells and MDSCs or M2 type macrophage. HLA-G is constitutively expressed in immune-privileged sites such as pancreatic islets, mesenchymal stem cells (MSCs) and the cornea. Upregulation of HLA-G occurs in pathological states including cancer, allo-transplantations, viral infections, autoimmune and inflammatory diseases (4). In cancer, HLA-G expression is induced by hypoxia and has been correlated with advanced tumor stage, tumor metastasis, and poor therapeutic response and survival. HLA-G is an attractive tumor associated-antigen (TAA) for immunotherapy and is considered a major immune checkpoint (ICP).
References
1. Loustau, M., Anna, F., Drean, R., Lecomte, M., Langlade-Demoyen, P., & Caumartin, J. (2020). HLA-G Neo-Expression on Tumors. Front Immunol, 11:1685. PMID: 32922387
2. Lin A, Yan WH. (2018) Heterogeneity of HLA-G Expression in Cancers: Facing the Challenges. Front Immunol. 9:2164. PMID: 30319626
3. Djurisic S, Hviid TV. (2014) HLA Class Ib Molecules and Immune Cells in Pregnancy and Preeclampsia. Front Immunol. 5:652. PMID: 25566263
4. Lila N, Rouas-Freiss N, Dausset J, Carpentier A, Carosella ED. (2001) Soluble HLA-G protein secreted by allo-specific CD4+ T cells suppresses the allo-proliferative response: a CD4+ T cell regulatory mechanism. Proc Natl Acad Sci U S A. 98(21):12150-12155. PMID: 11572934
Long Name
Major Histocompatibility Complex, Class I, G
Alternate Names
HLA G, HLA-6.0, HLAG, MHC Class I Antigen G, MHC-G
Gene Symbol
HLA-G
Additional HLA-G Products
Product Documents for HLA G Antibody (MEM-G/1) - BSA Free
Product Specific Notices for HLA G Antibody (MEM-G/1) - BSA Free
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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