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Key Product Details

Validated by


Species Reactivity

Human, Mouse, Rat, Bovine, Canine, Rabbit, Sheep


ELISA, Flow (Intracellular), Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Paraffin, Knockdown Validated, Simple Western, Western Blot



Antibody Source

Polyclonal Rabbit IgG


1 mg/ml

Product Summary for HMGB1/HMG-1 Antibody


A synthetic peptide made to an internal portion of the human HMGB1 protein sequence (between residues 100-200). [UniProt #P09429]

Predicted Species

Equine (100%), Porcine (100%). Backed by our 100% Guarantee.

Reactivity Notes

Rabbit reactivity reported in scientific literature (PMID: 27401639).









Theoretical MW

29 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.

Scientific Data Images for HMGB1/HMG-1 Antibody

Knockdown Validated: HMGB1/HMG-1 Antibody [NB100-2322] - Western blot shows lysates of HEK293T human embryonic kidney parental cell line and HMGB1 knockout (KO) HEK293T cell line. PVDF membrane was probed with 1.0 ug/ml of Rabbit Anti-Human HMGB1 Polyclonal Antibody (Catalog # NB100-2322) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog #HAF008). Specific band was detected for HMGB1 at approximately 30 kDa (as indicated) in the parental HEK293T cell line, but is not detectable in the knockout HEK293T cell line. This experiment was conducted under reducing conditions.
Western Blot: HMGB1/HMG-1 Antibody [NB100-2322] - Total protein from SHSY-5Y, MCF7, Neuro2A and HeLa was separated on a 12% gel by SDS-PAGE, transferred to PVDF membrane and blocked in 5% non-fat milk in TBST. The membrane was probed with 2.0 ug/mL anti-HMGB1 in 1% non-fat milk in TBST and detected with an anti-rabbit HRP secondary antibody using chemiluminescence.
Immunohistochemistry-Paraffin: HMGB1/HMG-1 Antibody [NB100-2322] - Staining of HMGB1 in mouse liver using NB100-2322.

Applications for HMGB1/HMG-1 Antibody

Recommended Usage

Flow Cytometry


Immunocytochemistry/ Immunofluorescence

0.05 ug/ml





Simple Western


Western Blot

0.5-1.0 ug/ml
Application Notes
In Western blot a band is seen approx. 29 kDa. It has been reported that the HRP conjugated format (Catalog# NB100-2322H) of this antibody works well for use in ELISA.

In Simple Western only 10 - 15 uL of the recommended dilution is used per data point. Separated by Size-Wes, Sally Sue/Peggy Sue.
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.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 5 reviews rated 4.4 using NB100-2322 in the following applications:

Published Applications

Read 32 publications using NB100-2322 in the following applications:

Formulation, Preparation, and Storage


Immunogen affinity purified




0.02% Sodium Azide


1 mg/ml


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: HMGB1/HMG-1

HMGB1 (high mobility group protein B1) is a member of HMGB family and it has been extensively studied as a transcription/growth factor that is most ubiquitous and evolutionarily conserved protein in eukaryotic organisms. HMGB1 is localized in nucleus, however gets translocated to cytoplasm or may get secreted also. It is a DNA binding protein that preferentially binds with ssDNA and contains 2 HMG box DNA-binding domains with ability of chromatin association for bending DNA. HMGB1 implicates in in V(D)J recombination by acting as a cofactor of RAG complex that contains core components RAG1 and RAG2, as well as an associated component HMGB1 or HMGB2. HMGB1 acts by stimulating cleavage and RAG protein binding at 23bp spacer of conserved RSS (recombination signal sequences). Originally described as a nonhistone nuclear protein with transcriptional regulatory properties, HMGB1 (especially the cytoplasmic/secreted form) has also now been recognized as a late mediator in septic shock as well as a pro-inflammatory cytokine. It gets translocated to cytoplasm or secreted when cells get exposed to inflammatory mediators (LPS, TNF-alpha, IFN-gamma) or via passive process during cellular necrosis. HMGB1 has been implicated in the pathogenesis of various inflammatory and autoimmune diseases, such as SLE, RA and ankylosing spondylitis.

Long Name

High Mobility Group Protein 1

Alternate Names


Gene Symbol


Product Documents for HMGB1/HMG-1 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for HMGB1/HMG-1 Antibody

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.



View specific protocols for HMGB1/HMG-1 Antibody (NB100-2322):

[[URL:]][[Ca… Antibody]]
Immunohistochemistry-paraffin embedded sections

Antigen Unmasking
Bring slides to a boil in 10 mM sodium citrate buffer pH 6.0 then maintain at a sub-boiling temperature for 10 minutes. Cool slides on bench top for 30 minutes.

1. Wash sections in dH2O three times for 5 minutes each.
2. Wash section in wash buffer (1X PBS/0.1% Tween-20 (1X PBST)) for 5 minutes.
3. Block each section with 100-400 ul blocking solution (1X PBST, 5% goat serum) for 1 hour at room temperature.
4. Remove blocking solution and add 100-400 ul primary antibody diluted in 1X PBST, 5% goat serum to each section. Incubate overnight at 4C.
5. Remove antibody solution and wash sections in wash buffer three times for 5 minutes each.
6. Add 100-400 ul biotinylated secondary antibody, diluted in 1X PBST, 5% goat serum. Incubate 30 minutes at room temperature.
7. Remove secondary antibody solution and wash sections three times with wash buffer for 5 minutes each.
8. Add 100-400 ul Striptavidin-HRP reagent to each section and incubate for 30 minutes at room temperature.
9. Wash sections three times in wash buffer for 5 minutes each.
10. Add 100-400 ul DAB substrate to each section and monitor staining closely.
11. As soon as the sections develop, immerse slides in dH2O.
12. Counterstain sections in hematoxylin.
13. Wash sections in dH2O two times for 5 minutes each.
14. Dehydrate sections.
15. Mount coverslips.
[[URL:]][[Ca… Antibody]]
Western Blot Protocol

1. Perform SDS-PAGE on samples to be analyzed, loading 10-25 ug of total protein per lane.
2. Transfer proteins to PVDF membrane according to the instructions provided by the manufacturer of the membrane and transfer apparatus.
3. Stain the membrane with Ponceau S (or similar product) to assess transfer success, and mark molecular weight standards where appropriate.
4. Rinse the blot TBS -0.05% Tween 20 (TBST).
5. Block the membrane in 5% Non-fat milk in TBST (blocking buffer) for at least 1 hour.
6. Wash the membrane in TBST three times for 10 minutes each.
7. Dilute primary antibody in blocking buffer and incubate overnight at 4C with gentle rocking.
8. Wash the membrane in TBST three times for 10 minutes each.
9. Incubate the membrane in diluted HRP conjugated secondary antibody in blocking buffer (as per manufacturer's instructions) for 1 hour at room temperature.
10. Wash the blot in TBST three times for 10 minutes each (this step can be repeated as required to reduce background).
11. Apply the detection reagent of choice in accordance with the manufacturers instructions.

FAQs for HMGB1/HMG-1 Antibody

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  • Q: I'd like to use NB100-2322 for FACS. One of the images shows successful staining. Which permeabilization method and fixative was used? I've seen conflicting reports, especially for fixation.

    A: This image was obtained using 10% formalin as fixative and 90% methanol for permeabilization.

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