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STUB1 Antibody (C-term)

Purified Rabbit Polyclonal Antibody (Pab)

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  • WB - STUB1 Antibody (C-term) AP6413b
    Anti-CHIP C-term at 1:1000 dilution + MCF-7 whole cell lysate Lysates/proteins at 20 µg per lane. Secondary Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 35 kDa Blocking/Dilution buffer: 5% NFDM/TBST.
  • WB - STUB1 Antibody (C-term) AP6413b
    CHIP Antibody (C-term) (Cat.# AP6413b) western blot analysis in 293 cell line and human placenta lysates (35ug/lane).This demonstrates the CHIP antibody detected the CHIP protein (arrow).
  • IHC-P - STUB1 Antibody (C-term) AP6413b
    Formalin-fixed and paraffin-embedded human hepatocarcinoma tissue reacted with CHIP (STUB1) antibody (C-term) (Cat.#AP6413b), which was peroxidase-conjugated to the secondary antibody, followed by DAB staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated.
  • IHC-P - STUB1 Antibody (C-term) AP6413b
    Formalin-fixed and paraffin-embedded human cancer tissue reacted with the primary antibody, which was peroxidase-conjugated to the secondary antibody, followed by AEC staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. BC = breast carcinoma; HC = hepatocarcinoma.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession Q9UNE7
Other Accession Q9WUD1, Q5ZHY5, Q969U2
Reactivity Human
Predicted Chicken, Mouse
Host Rabbit
Clonality Polyclonal
Isotype Rabbit Ig
Calculated MW 34856 Da
Antigen Region 203-231 aa
Additional Information
Gene ID 10273
Other Names E3 ubiquitin-protein ligase CHIP, 632-, Antigen NY-CO-7, CLL-associated antigen KW-8, Carboxy terminus of Hsp70-interacting protein, STIP1 homology and U box-containing protein 1 {ECO:0000312|HGNC:HGNC:11427}, STUB1 (HGNC:11427)
Target/Specificity This STUB1 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 203-231 amino acids from the C-terminal region of human STUB1.
Dilution WB~~1:1000
Format Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.
StorageMaintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsSTUB1 Antibody (C-term) is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name STUB1 (HGNC:11427)
Function E3 ubiquitin-protein ligase which targets misfolded chaperone substrates towards proteasomal degradation. Collaborates with ATXN3 in the degradation of misfolded chaperone substrates: ATXN3 restricting the length of ubiquitin chain attached to STUB1/CHIP substrates and preventing further chain extension. Ubiquitinates NOS1 in concert with Hsp70 and Hsp40. Modulates the activity of several chaperone complexes, including Hsp70, Hsc70 and Hsp90. Mediates transfer of non-canonical short ubiquitin chains to HSPA8 that have no effect on HSPA8 degradation. Mediates polyubiquitination of DNA polymerase beta (POLB) at 'Lys-41', 'Lys-61' and 'Lys-81', thereby playing a role in base-excision repair: catalyzes polyubiquitination by amplifying the HUWE1/ARF- BP1-dependent monoubiquitination and leading to POLB-degradation by the proteasome. Mediates polyubiquitination of CYP3A4. Ubiquitinates EPHA2 and may regulate the receptor stability and activity through proteasomal degradation. Negatively regulates the suppressive function of regulatory T-cells (Treg) during inflammation by mediating the ubiquitination and degradation of FOXP3 in a HSPA1A/B-dependent manner (PubMed:23973223).
Cellular Location Cytoplasm. Nucleus. Note=Translocates to the nucleus in response to inflammatory signals in regulatory T-cells (Treg)
Tissue Location Highly expressed in skeletal muscle, heart, pancreas, brain and placenta. Detected in kidney, liver and lung
Research Areas
Citations (0)

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CHIP is an E3 ligase for nNOS whose action is facilitated by (and possibly requires) its interaction with nNOS-bound hsp70. Co-chaperone CHIP, possibly with another E3 ligase(s), modulates the ubiquitylation of mutant Cu/Zn-superoxide dismutase and renders them more susceptible for proteasomal degradation. CHIP functions as a negative regulator of AR transcriptional activity by promoting AR degradation. CHIP-Hsc70 complex ubiquitinates phosphorylated tau and enhances cell survival. CHIP can interact with the Smad1/Smad4 proteins and block BMP signal transduction through the ubiquitin-mediated degradation of Smad proteins. CHIP E3 controls both the association of Hsp70/Hsp90 chaperones with ErbB2 and the down-regulation of ErbB2 induced by inhibitors of Hsp90. CHIP is associated with Parkin and enhances its ubiquitin ligase activity related to Parkinson's disease.


Peng,H.M., et al. J. Biol. Chem. 279 (51), 52970-52977 (2004)
Alberti,S., et al. Mol. Biol. Cell 15 (9), 4003-4010 (2004)
Beausoleil,S.A., et al. PNAS 101 (33), 12130-12135 (2004)
He,B., et al. J. Biol. Chem. 279 (29), 30643-30653 (2004)
Petrucelli,L., et al. Hum. Mol. Genet. 13 (7), 703-714 (2004)
Shimura,H., et al. J. Biol. Chem. 279 (6), 4869-4876 (2004)
Li,L., et al. Mol. Cell. Biol. 24 (2), 856-864 (2004)
Zhou,P., et al. J. Biol. Chem. 278 (16), 13829-13837 (2003)
Imai,Y., et al. Mol. Cell 10 (1), 55-67 (2002)
Ballinger,C.A., et al. Mol. Cell. Biol. 19 (6), 4535-4545 (1999)

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$ 295.00
$ 99.00
Cat# AP6413b
(40 western blots)
Availability: In Stock
Bulk Size
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