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Home >> Antibodies >> HERPUD1 Antibody / Homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein

HERPUD1 Antibody / Homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein (FY12159)

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Image FY12159 Adding 0.2 ml of distilled water will yield a concentration of 500 ug/ml 100 ug 449
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Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human appendiceal carcinoid tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Western blot analysis of HERPUD1 using anti-HERPUD1 antibody. Lane 1: human PC-3 whole cell lysates, Lane 2: human Hela whole cell lysates, Lane 3: human HepG2 whole cell lysates, Lane 4: human LNCAP whole cell lysates, Lane 5: rat liver tissue lysates, Lane 6: mouse liver tissue lysates. After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-HERPUD1 antibody at 0.5 ug/ml overnight at 4oC, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal was developed using enhanced chemiluminescent. The predicted band size for HERPUD1 is at 44 kDa but it is commonly observed at ~55 kDa, the doublet likely reflecting different phosphorylation or ubiquitination states.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human appendiceal carcinoid tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human breast cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human breast cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human cervix squamous cell carcinoma tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human cervix squamous cell carcinoma tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human ovarian cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human ovarian cancer tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human rectum adenocarcinoma tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunohistochemical staining of HERPUD1 using anti-HERPUD1 antibody. HERPUD1 was detected in a paraffin-embedded section of human testicular seminoma tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 ug/ml rabbit anti-HERPUD1 antibody overnight at 4oC. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37oC. The tissue section was developed using an HRP secondary and DAB substrate.
Immunofluorescent staining of FFPE human appendix tissue with HERPUD1 antibody (red) and DAPI nuclear stain (blue). HIER: steam section in pH8 EDTA buffer for 20 min.
Immunofluorescent staining of FFPE human ovarian tissue with HERPUD1 antibody (red) and DAPI nuclear stain (blue). HIER: steam section in pH8 EDTA buffer for 20 min.
Immunofluorescent staining of FFPE human A549 cells with HERPUD1 antibody (red) and DAPI nuclear stain (blue). HIER: steam section in pH6 citrate buffer for 20 min.
Availability 1-2 days
Species Reactivity Human, Mouse, Rat
Format Lyophilized
Host Rabbit
Clonality Polyclonal (rabbit origin)
Isotype Rabbit IgG
Purity Immunogen affinity purified
Buffer Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.
UniProt Q15011
Applications Western Blot : 0.25-0.5ug/ml
Immunohistochemistry : 2-5ug/ml
Immunocytochemistry : 5ug/ml
Immunofluorescence : 5ug/ml
ELISA : 0.1-0.5ug/ml
Limitations This HERPUD1 antibody is available for research use only.
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Description

HERPUD1 antibody detects Homocysteine-inducible, endoplasmic reticulum stress-inducible, ubiquitin-like domain member 1, encoded by the HERPUD1 gene on chromosome 16q13. HERPUD1 antibody is commonly used to study this endoplasmic reticulum (ER)-resident protein that participates in protein quality control, ER stress responses, and the unfolded protein response (UPR). HERPUD1 is highly induced by ER stress conditions such as hypoxia, oxidative damage, or accumulation of misfolded proteins. Its protective function lies in facilitating ER-associated degradation (ERAD), a pathway that retrotranslocates misfolded proteins from the ER to the cytosol for ubiquitin-proteasome degradation.

Structurally, HERPUD1 contains a ubiquitin-like (UBL) domain that mediates interaction with proteasome subunits and ubiquitin-conjugating enzymes. Its N-terminal transmembrane region anchors it to the ER membrane, while its cytoplasmic tail recruits E3 ligases and cofactors. These features allow HERPUD1 to function as a scaffold for protein degradation complexes, ensuring efficient clearance of unfolded proteins. Its rapid upregulation during ER stress highlights its role as a first responder in the UPR.

Functionally, HERPUD1 protects cells from ER stress-induced apoptosis. By promoting protein degradation, it prevents accumulation of misfolded proteins and maintains ER homeostasis. Beyond ERAD, HERPUD1 influences calcium homeostasis and autophagy. Knockout studies demonstrate increased susceptibility to ER stress and impaired survival under hypoxia. Researchers use HERPUD1 antibody to study UPR signaling, proteostasis, and mechanisms of cell survival under stress.

Clinically, HERPUD1 has been implicated in neurodegenerative disorders such as Parkinson's disease and Alzheimer's disease, where chronic ER stress contributes to neuronal death. In cancer, HERPUD1 expression correlates with tumor survival in hypoxic environments, suggesting it may support tumor adaptation to stress. Polymorphisms in HERPUD1 have been linked to cardiovascular disease risk, reflecting its role in stress adaptation. Elevated expression has also been observed in kidney disease and diabetes, where ER stress drives pathology.

Experimentally, HERPUD1 antibody is applied in western blotting to detect the ~54 kDa protein, in immunofluorescence microscopy to study ER localization, and in immunohistochemistry to assess expression in tissues under stress. Co-immunoprecipitation with HERPUD1 antibody has identified its interactions with ubiquitin ligases, proteasomal components, and ER chaperones. NSJ Bioreagents provides HERPUD1 antibody to support research in ER stress, neurodegeneration, oncology, and cardiovascular biology.

Application Notes

Optimal dilution of the HERPUD1 antibody should be determined by the researcher.

Immunogen

E.coli-derived human HERP/HERPUD1 recombinant protein (Position: E6-Q361) was used as the immunogen for the HERPUD1 antibody.

Storage

After reconstitution, the HERPUD1 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

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