Recombinant Human HMGB1 Protein, CF Summary
| Details of Functionality |
Measured by its ability to induce TNF-alpha secretion by RAW 264.7 mouse monocyte/macrophage cells. The ED50 for this effect is 2.5-12.5 μg/mL. |
| Source |
Mouse myeloma cell line, NS0-derived human HMGB1/HMG-1 protein Met1-Glu215 |
| Accession # |
|
| N-terminal Sequence |
Met1 & Gly2 |
| Protein/Peptide Type |
Recombinant Proteins |
| Gene |
HMGB1 |
| Purity |
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining |
| Endotoxin Note |
<0.10 EU per 1 μg of the protein by the LAL method. |
Applications/Dilutions
| Dilutions |
|
| Theoretical MW |
25 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
| SDS-PAGE |
28-34 kDa, reducing conditions |
| Publications |
Read Publications using 1690-HMB in the following applications:
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Packaging, Storage & Formulations
| Storage |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
|
| Buffer |
Lyophilized from a 0.2 μm filtered solution in PBS. |
| Purity |
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining |
| Reconstitution Instructions |
Reconstitute at 200 μg/mL in PBS. |
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human HMGB1 Protein, CF
Background
High-mobility Group Box 1 protein (HMGB1), also known as HMG1 or Amphoterin, is a member of the high mobility group box family of non-histone chromosomal proteins (1-3). Human HMGB1 is expressed as a 25 kDa single chain protein containing two globular positively charged DNA-binding domains (HMG boxes A and B) and a negatively charged C-terminal region that contains only Asp and Glu residues (4, 5). Posttranslational modification of HMGB1, including acetylation, phosphorylation, and methylation, affects HMGB1 localization, receptor interactions, and bioactivity (3). An intramolecular disulfide bond between Cys23 and Cys45 as well as the presence of the unpaired Cys106 thiol are critical for HMGB1-induced pro-inflammatory TNF-alpha secretion (2, 6). Alternatively, fully reduced HMGB1 acts as a potent chemoattractant for neutrophils and monocytes (7). HMGB1 can be localized to the nucleus or cytoplasm and can also be secreted despite its lack of a signal peptide (2). HMGB1 binds DNA in a non-sequence specific manner and may act as a structural cofactor during gene transcription (8). Acetylation of HMGB1 results in its cytoplasmic localization and eventual secretion (9). HMGB1 can be secreted by multiple cell types, and it is also released upon cell necrosis, apoptosis, and pyroptosis (2, 3). HMGB1 is widely recognized as a multifunctional alarmin that stimulates inflammation upon sterile or infectious insult. Receptors for HMGB1 include TLR2, TLR4, TLR9, Syndecan-3, Siglec-10, Integrin alpha M beta 2, CXCR4, TIM-3, and RAGE (1, 2). It is implicated in the pathogenesis of a broad range of diseases including atherosclerosis, sepsis, cancer, neurodegenerative diseases, and autoimmunity (3, 10-13).
- Yanai, H. et al. (2012) Trends Immunol. 33:633.
- Yang, H. et al. (2013) J. Leukoc. Biol. 93:865.
- Harris, H.E. et al. (2012) Nat. Rev. Rheumatol. 8:195.
- Degryse, B. and M. de Virgilio (2003) FEBS Lett. 553:11.
- Wen, L. et al. (1989) Nucleic Acids Res. 17:1197.
- Yang, H. et al. (2021) Mol. Med. 27:58.
- Venereau, E. et al. (2012) J. Exp. Med. 209:1519.
- Bianchi, M.E. and A. Agresti (2005) Curr. Opin. Genet. Dev. 15:496.
- Bonaldi, T. et al. (2003) EMBO J. 22:5551.
- Diener, K.R. et al. (2013) Immunol. Cell Biol. 91:443.
- Fang, P. et al. (2012) Mol. Neurobiol. 45:499.
- de Souza, A.W. et al. (2012) Autoimmun. Rev. 11:909.
- Bae, J.S. (2012) Arch. Pharm. Res. 35:1511.
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FAQs for HMGB1/HMG-1 (1690-HMB) (0)