Product Information

Property	Description
Product Name	Anti-mouse/human GR Recombinant Monoclonal Antibody
Antibody ID	XM0009
Target Protein	Glucocorticoid receptor (GR)
UniProt Accession	Human: P04150; Mouse: P06537
Molecular Weight	Human isoforms: 60.6–85.8 kDa; Mouse isoforms: 83.0–87.3 kDa
Antibody Type	Recombinant monoclonal antibody
Host Species	Mouse
Recombinant Format	Full-length mouse IgG1
Isotype	Mouse IgG1
Species Reactivity	Mouse and human
Tested Applications	WB, IF, ELISA
Recommended Dilution for WB	1:500–1:5000
Antigen	Recombinant epitope-Fc fusion protein
Epitope Sequence	YKTLRGGATVKVSASSP
Expression System	HEK293 cells
Purification	Protein G affinity chromatography
Conjugate	Unconjugated
Concentration	0.1 mg/mL
Storage Buffer	0.1 M Tris, 0.05 M Glycine, 0.07 M NaCl, 2 g/L BSA, 50% glycerol, pH 7
Storage Condition	Store at -20°C
Research Use	For research use only. Not for diagnostic or therapeutic applications.

Product Background

Glucocorticoid receptor (GR) is a ligand-regulated nuclear receptor that mediates the biological effects of glucocorticoids. GR is involved in stress responses, immune regulation, inflammation, metabolism, development, and transcriptional control. Because glucocorticoid signaling is central to immunology, endocrinology, neuroscience, and pharmacology, GR is widely studied in disease biology and therapeutic research.

Antibody Development

XM0009 was generated by phage-display selection using a mouse-derived antibody library. Recombinant epitope-Fc fusion protein containing the GR epitope sequence was used as the selection antigen. Following identification of the initial antibody candidate, structure-guided affinity optimization was performed to improve binding affinity and specificity.

The optimized antibody was reconstructed as a full-length mouse IgG1 recombinant antibody and expressed in HEK293 cells.

Binding and specificity were evaluated by:

• ELISA using recombinant epitope-Fc fusion antigen
• Western blot using recombinant MBP-epitope fusion protein
• Western blot detection of endogenous GR protein in mouse tissues and a human cell line
• Immunofluorescence staining of endogenous mouse GR in brain tissue

Validation Data

ELISA Validation

ELISA demonstrated specific binding to recombinant epitope-Fc fusion antigen, while minimal binding was observed against Fc control protein.

Validation conditions:

• Well 1: Fc control protein
• Well 2: epitope-Fc fusion protein
• Detection substrate: TMB

Note: ELISA validation confirms binding to the epitope-Fc fusion antigen. Full-length GR protein binding in solution has not been tested by ELISA.

Western Blot Validation – Recombinant Fusion Protein

Western blot analysis demonstrated specific recognition of recombinant MBP-epitope fusion protein expressed in BL21(DE3) cells, while no significant binding was observed against MBP control protein.

Validation conditions:

• Lane 1: MBP control protein
• Lane 2: MBP-epitope fusion protein
• Standard reducing Western blot

Western Blot Validation – Endogenous Full-Length Protein

Western blot analysis detected endogenous GR protein in mouse tissues and a human cell line under reducing conditions.

Validated samples:

• Mouse brain tissue
• Mouse liver tissue
• HepG2 cells

Detection condition:

• Standard reducing Western blot
• HRP-conjugated anti-mouse secondary antibody

Immunofluorescence Validation

Immunofluorescence staining of mouse brain tissue showed endogenous GR-associated signal using XM0009. GR signal is shown in green and nuclei are counterstained with DAPI (blue).