PE anti-HMGB1

High mobility group protein B1 (HMGB1) belongs to a family of highly conserved proteins that contain HMG box domains. Human HMGB1 is expressed as a 215 amino acid (aa) single chain polypeptide containing three domains: two N-terminal globular, 70 aa positively charged DNA binding domains (HMG boxes A and B), and a negatively charged 30 aa C-terminal region that contains only Asp and Glu. Human HMGB1 is 100% aa identical to canine HMGB1 and 99% aa identical to mouse, rat, bovine and porcine HMGB1.\nHMGB1 is a widely expressed and highly abundant protein. It was originally discovered as a nuclear protein that could bend DNA. Such bending stabilizes nucleosome formation and regulates the expression of select genes upon recruitment by DNA binding proteins. It is now known that HMGB1 also plays a significant role in extracellular signaling associated with inflammation. HMGB1 is massively released into the extracellular environment during cell necrosis. It acts as an inflammatory mediator that promotes monocyte migration and cytokine secretion, and as a mediator of T cell-dendritic cell interaction. In addition, activated monocytes, macrophages, and dendritic cells also secrete HMGB1, forming a positive feedback loop that results in the release of additional cytokines and neutrophils. The cytokine activity of HMGB1 is restricted to the HMG B box, while the A box is associated with the helix-loop-helix domain of transcription factors. Although HMGB1 does not possess a classic signal sequence, it appears to be secreted as an acetylated form via secretory endolysosome exocytosis. Once secreted, HMGB1 transduces cellular signals through its high affinity receptor, RAGE and, possibly, TLR2 and TLR4.

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SPECIFICATIONS

Catalog Number

651403

Size

25 tests

Applications

FC, ICC

Hosts

Mouse

Reactivities

Hum, Mouse, Rat

Clone

3E8

Antigen

Recombinant human HMGB1 with GST tag. A universal T cell epitope from a Mycobacterium tuberculosis antigen was introduced into the C-terminus of HMGB1 to increase the immunogenicity.

Gene Id

3146

Isotype

Mouse IgG2b, kappa

Clonality

Monoclonal

Dilutions

Each lot of this antibody is quality control tested by intracellular immunofluorescent staining with flow cytometric analysis. For immunofluorescent staining, the suggested use of this reagent is 5 microl per million cells or 5 microl per 100 microl of whole blood. It is recommended that the reagent be titrated for optimal performance for each application.

Storage Temp

4 C

Concentration

Shipping Temp

Ambient RT

Storage Buffer

The antibody solution should be stored undiluted at 4C and protected from prolonged exposure to light. Do not freeze.

Alternative Names

High mobility group protein 1, high mobility group protein B1, Sulfoglucuronyl carbohydrate binding protein

Regulatory Status

RUO