IκB-α Antibody (YA5889)

Cat. No.: HY-P86197: Data Sheet COA
SDS
User Guide for Antibodies
FAQs
Technical Support

IκB-α Antibody (YA5889) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to IκB-α.

For research use only. We do not sell to patients.

Size	Stock	Quantity
10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

or Bulk Inquiry

* Please select Quantity before adding items.

1 Publications Citing Use of MCE IκB-α Antibody (YA5889)

•Cell Mol Biol Lett. 2025 Jul 18;30(1):84. [Abstract]

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Verification Image
Background
Documentation
References

Description

IκB-α Antibody (YA5889) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to IκB-α.

Host

Rabbit

Clonality

Monoclonal

Molecular Weight

Predicted band size: 36 kDa;

Observed band size: 36 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse, Rat

SwissProt ID

P25963

Gene ID

4792 [NCBI]

Application &
Dilution Ratio

Application	Dilution Ratio
IHC-P IHC-P: Immunohistochemistry-Paraffin	1:200-1:2000
WB WB: Western Blot	1:2000-1:10000
ICC/IF ICC/IF: Immunocytochemistry/Immunofluorescence	1:200-1:1000
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-1:20000
IP IP: Immunoprecipitation	1:50-1:200

Purity	Protein A	Conjugation	Non-conjugated
Modification	Unmodified	Isotype	IgG

Appearance

Liquid

Formulation

Supplied in PBS, 50% glycerol, 0.05% Proclin 300, 0.05%BSA

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image

ALL WB IHC-P

Western blot analysis of extracts from Jurkat (lane2(20μg), Hela (lane3(20μg), C6 (lane4(20μg) and NIH3T3 (lane5(20μg) using IκB-α Antibody (HY-P86197). Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/5000) and Loading control antibody (Beta Actin, HY-P80993, 1/10,000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Rabbit IgG-HRP Secondary Antibody (HY-P8001 ,1/10,000) was used for 1 hour at room temperature.
Immunohistochemical analysis of paraffin-embedded human stomach tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
Immunohistochemical analysis of paraffin-embedded human colon tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
Immunohistochemical analysis of paraffin-embedded human colon tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
Immunohistochemical analysis of paraffin-embedded human liver cancer tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.
Immunohistochemical analysis of paraffin-embedded human colon adenocarcinoma tissue using IκB-α Antibody (YA5889). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P86197, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam.

Background

Function：Inhibits the activity of dimeric NF-kappa-B/REL complexes by trapping REL (RELA/p65 and NFKB1/p50) dimers in the cytoplasm by masking their nuclear localization signals (PubMed:1493333, PubMed:36651806, PubMed:7479976). On cellular stimulation by immune and pro-inflammatory responses, becomes phosphorylated promoting ubiquitination and degradation, enabling the dimeric RELA to translocate to the nucleus and activate transcription (PubMed:7479976, PubMed:7628694, PubMed:7796813, PubMed:7878466)

Subcellular Localization：Cytoplasm; Nucleus

Expression：
Induction:Induced in adherent monocytes

Subunit：Interacts with RELA; the interaction requires the nuclear import signal (PubMed:1493333). Part of a 70-90 kDa complex at least consisting of CHUK, IKBKB, NFKBIA, RELA, ELP1 and MAP3K14 (PubMed:9751059). Interacts with NKIRAS1 and NKIRAS2 (PubMed:10657303). Interacts with isoform 1 and isoform 2 of RWDD3; the interaction enhances sumoylation (PubMed:17956732, PubMed:23469069). Interacts with PRMT2 (PubMed:16648481). Interacts with PRKACA in platelets; this interaction is disrupted by thrombin and collagen (PubMed:20356841). Interacts with MEFV (PubMed:18577712). Interacts with DDRGK1; positively regulates NFKBIA phosphorylation and degradation (PubMed:23675531). Interacts with HNRNPA2B1; the interaction may be mediated by the RRM2 domain of HNRNPA2B1, and HNRNPA2B1 may interact simultaneously with FAM76B and either NFKBIA or NFKBIE to form a complex (PubMed:37643469)

RRID

AB_3719104

Synonyms

NF-kappa-B inhibitor alpha; I-kappa-B-alpha; IkB-alpha; IkappaBalpha; Major histocompatibility complex enhancer-binding protein MAD3;

Documentation

Select Batch:

Data Sheet (235 KB) SDS (252 KB)

COA (206 KB)

User Guide for Antibodies (1077 KB)

References

[1]. /biology-dictionary/nff-cell.html [Content Brief]