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AB284686

Anti-CENPA antibody [EP800Y] - BSA and Azide free

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Rabbit Recombinant Monoclonal CENPA antibody. Carrier free. Suitable for WB, IHC-P and reacts with Human samples.

View Alternative Names

Histone H3-like centromeric protein A, Centromere autoantigen A, Centromere protein A, CENP-A, CENPA

8 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.Immunohistochemical analysis of paraffin embedded human colon tissue section labelling CENPA with purified ab45694 at dilution of 1/250. The secondary antibody used was HRP-conjugated Goat Anti-Rabbit IgG H&L (ab97051) at dilution of 1/500. The sample was counter-stained with hematoxylin. Antigen retrieval was perfomed using Tris-EDTA buffer, pH 9.0. PBS was used instead of the primary antibody as the negative control and is shown in the inset.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of formalin fixed, paraffin embedded human lymphoma tissue section labelling CENPA with unpurified ab45694.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

IHC image of ab45694 staining CENPA in human skin formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with unpurified ab45694, 10 μg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of formalin fixed, paraffin embedded human prostatic carcinoma tissue section labelling CENPA with unpurified ab45694.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Lab

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of formalin fixed, paraffin embedded human colonic adenocarcinoma tissue section labelling CENPA with unpurified ab45694.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of formalin fixed, paraffin embedded human lung carcinoma tissue section labelling CENPA with unpurified ab45694.

Western blot - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • WB

Unknown

Western blot - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

Blocking and diluting buffer 5% NFDM/TBST

All lanes:

Western blot - Anti-CENPA antibody [EP800Y] - Centromere Marker (<a href='/en-us/products/primary-antibodies/cenpa-antibody-ep800y-centromere-marker-ab45694'>ab45694</a>) at 1/1000 dilution

Lane 1:

HeLa (human cervix adenocarcinoma) whole cell lysate at 20 µg

Lane 2:

Human melanoma at 20 µg

Lane 3:

A375 (human malignant melanoma) whole cell lysate at 20 µg

Lane 4:

HCT-116 (human colorectal carcinoma) whole cell lysate at 20 µg

Lane 5:

Human placenta lysate at 20 µg

Secondary

All lanes:

Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG at 1/2000 dilution

Predicted band size: 16 kDa

Observed band size: 18 kDa

false

Western blot - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)
  • WB

Supplier Data

Western blot - Anti-CENPA antibody [EP800Y] - BSA and Azide free (AB284686)

This data was developed using ab45694, the same antibody clone in a different buffer formulation.

All lanes:

Western blot - Anti-CENPA antibody [EP800Y] - BSA and Azide free (ab284686) at 1/20000 dilution

All lanes:

HeLa cell lysate at 10 µg

Predicted band size: 16 kDa

false

  • Unconjugated

    Anti-CENPA antibody [EP800Y] - Centromere Marker

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EP800Y

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

IHC-P, WB

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

ab284686 is the carrier-free version of ab45694

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

CENPA also known as Centromere Protein A is an essential component of the centromere specifically during cell division. It represents a histone H3 variant with an approximate mass of 17 kDa. This protein is expressed at the centromere regions of chromosomes where it substitutes conventional histone H3. CENPA facilitates the assembly of the kinetochore an important structure for chromosome segregation. Scientists also refer to this protein as CENP-A often in conjunction with studies involving anti-centromere antibodies and centromere staining.
Biological function summary

CENPA plays a central role in accurate chromosome segregation during mitosis and meiosis. It incorporates into nucleosomes at the centromere replacing standard histone H3 to promote kinetochore formation. CENPA is part of a larger protein complex known as the centromere. This complex propelled by CENPA drives proper attachment of chromosomes to spindle microtubules preventing aneuploidy.

Pathways

The kinetochore pathway and the chromosome segregation pathway both involve CENPA significantly. It functions in tandem with other centromeric proteins such as CENP-B and CENP-C which work collaboratively to sustain centromere integrity. CENPA interacts with these proteins to orchestrate correct alignment and separation of chromosomes integrating it into the foundational architecture of genetic stability.

CENPA has association with several chromosomal instability syndromes. Misregulation or mutation of this protein may contribute to cancer progression where improper chromosome segregation is an important factor. It also connects to other proteins like CENP-H implicated in malignancies due to errors in chromosome transmission. Additionally autoimmune diseases often involve centromere antibodies highlighting the connection of CENPA to disorders such as systemic sclerosis.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Histone H3-like nucleosomal protein that is specifically found in centromeric nucleosomes (PubMed : 11756469, PubMed : 14667408, PubMed : 15282608, PubMed : 15475964, PubMed : 15702419, PubMed : 17651496, PubMed : 19114591, PubMed : 20739937, PubMed : 27499292, PubMed : 7962047, PubMed : 9024683). Replaces conventional H3 in the nucleosome core of centromeric chromatin that serves as an assembly site for the inner kinetochore (PubMed : 18072184). The presence of CENPA subtly modifies the nucleosome structure and the way DNA is wrapped around the nucleosome and gives rise to protruding DNA ends that are less well-ordered and rigid compared to nucleosomes containing histone H3 (PubMed : 26878239, PubMed : 27499292). May serve as an epigenetic mark that propagates centromere identity through replication and cell division (PubMed : 15282608, PubMed : 15475964, PubMed : 20739937, PubMed : 21478274, PubMed : 26878239). Required for recruitment and assembly of kinetochore proteins, and as a consequence required for progress through mitosis, chromosome segregation and cytokinesis (PubMed : 11756469, PubMed : 14667408, PubMed : 18072184, PubMed : 23818633, PubMed : 25556658, PubMed : 27499292).
See full target information CENPA

Product promise

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