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AB236239

Anti-MSH2 antibody [SP46] - BSA and Azide free

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(1 Publication)

Knockout Tested Rabbit Recombinant Monoclonal MSH2 antibody. Carrier free. Suitable for IHC-P, WB and reacts with Human samples. Cited in 1 publication.

View Alternative Names

DNA mismatch repair protein Msh2, hMSH2, MutS protein homolog 2, MSH2

2 Images
Western blot - Anti-MSH2 antibody [SP46] - BSA and Azide free (AB236239)
  • WB

Lab

Western blot - Anti-MSH2 antibody [SP46] - BSA and Azide free (AB236239)

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab231437). False colour image of Western blot : Anti-MSH2 antibody [SP46] staining at 0.061 ug/ml, shown in green; Mouse anti-GAPDH antibody [6C5] (ab8245) loading control staining at 1/20000 dilution, shown in red. In Western blot, ab231437 was shown to bind specifically to MSH2. A band was observed at 104 kDa in wild-type HCT 116 cell lysates with no signal observed at this size in MSH2 knockout cell line. To generate this image, wild-type and MSH2 knockout HCT 116 cell lysates were analysed. First, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 3 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution.

All lanes:

Western blot - Anti-MSH2 antibody [SP46] (<a href='/en-us/products/primary-antibodies/msh2-antibody-sp46-ab231437'>ab231437</a>) at 0.061 µg/mL

Lane 1:

Wild-type HCT 116 cell lysate at 20 µg

Lane 2:

Western blot - Human MSH2 knockout HCT116 cell line (<a href='/en-us/products/cell-lines/human-msh2-knockout-hct116-cell-line-ab286273'>ab286273</a>)

Lane 2:

MSH2 knockout HCT 116 cell lysate at 20 µg

Lane 3:

HAP1 cell lysate at 20 µg

Lane 4:

A-375 cell lysate at 20 µg

Secondary

All lanes:

Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution

Predicted band size: 105 kDa

Observed band size: 104 kDa

false

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MSH2 antibody [SP46] - BSA and Azide free (AB236239)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-MSH2 antibody [SP46] - BSA and Azide free (AB236239)

Formalin-fixed, paraffin-embedded human prostate tissue stained for MSH2 using ab231437 at 1/100 dilution in immunohistochemical analysis.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab231437).

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

SP46

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

WB, IHC-P

applications

Immunogen

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

Reactivity data

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Product details

ab236239 is the carrier-free version of ab231437.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

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/G
Purification notes
Purified from TCS by protein A/G.
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
Storage information
Do Not Freeze

Supplementary information

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

MSH2 also known as MutS Homolog 2 is a human protein with a molecular weight of approximately 100 kDa. It is an important component of the DNA mismatch repair system and plays an essential role in maintaining genomic stability by recognizing and repairing mismatched nucleotides during DNA replication. Expression of the MSH2 protein occurs broadly in dividing cells across various tissues with notable presence in tissues with high proliferation rates such as the colon and the endometrium. Additionally detection and quantification of MSH2 are often performed using methodologies such as MSH2 ELISA which aids in the assessment of its expression levels in different biological samples.
Biological function summary

Components are identified in mismatch repair where MSH2 forms a heterodimer with MSH6 known as the MutSα complex or with MSH3 known as the MutSβ complex. This heterodimerization is critical for the initial steps in the recognition and binding of mismatch errors on the DNA strand. MSH2 complex formation enables it to scan the DNA for errors facilitating the recruitment of additional repair proteins. The activity of MSH2 in these complexes is important in preserving the fidelity of genetic information and prevents mutations that could lead to genomic instability.

Pathways

MSH2 operates within the DNA damage response and repair pathways. The protein is a core component of the mismatch repair pathway which corrects DNA replication errors that elude proofreading activity of DNA polymerases. It interacts with other proteins such as MLH1 and PMS2 forming a synergistic function that amplifies the capacity to recognize and initiate repair of mismatches. The pathway involving MSH2 not only repairs mismatched bases but also plays a role in cell cycle control checkpoints and apoptosis evidencing its pivotal role in maintaining cell cycle integrity.

Studies show that MSH2 is strongly associated with Lynch syndrome an autosomal dominant inherited condition that increases the risk of colorectal cancer. Mutations in the MSH2 gene impair its mismatch repair function and lead to microsatellite instability a hallmark of cancer cells in this disorder. Furthermore alterations in the MSH2 protein also relate to glioblastomas with correlations observed between MSH2 expression levels and tumor progression. These conditions exemplify the important role of MSH2 and its interaction with other DNA repair proteins in preventing cancerous developments.

Product protocols

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

Target data

Component of the post-replicative DNA mismatch repair system (MMR). Forms two different heterodimers : MutS alpha (MSH2-MSH6 heterodimer) and MutS beta (MSH2-MSH3 heterodimer) which binds to DNA mismatches thereby initiating DNA repair. When bound, heterodimers bend the DNA helix and shields approximately 20 base pairs. MutS alpha recognizes single base mismatches and dinucleotide insertion-deletion loops (IDL) in the DNA. MutS beta recognizes larger insertion-deletion loops up to 13 nucleotides long. After mismatch binding, MutS alpha or beta forms a ternary complex with the MutL alpha heterodimer, which is thought to be responsible for directing the downstream MMR events, including strand discrimination, excision, and resynthesis. Recruits DNA helicase MCM9 to chromatin which unwinds the mismatch containing DNA strand (PubMed : 26300262). ATP binding and hydrolysis play a pivotal role in mismatch repair functions. The ATPase activity associated with MutS alpha regulates binding similar to a molecular switch : mismatched DNA provokes ADP-->ATP exchange, resulting in a discernible conformational transition that converts MutS alpha into a sliding clamp capable of hydrolysis-independent diffusion along the DNA backbone. This transition is crucial for mismatch repair. MutS alpha may also play a role in DNA homologous recombination repair. In melanocytes may modulate both UV-B-induced cell cycle regulation and apoptosis.
See full target information MSH2

Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Cells 14: PubMed39996786

2025

A Critical Role of Intracellular PD-L1 in Promoting Ovarian Cancer Progression.

Applications

Unspecified application

Species

Unspecified reactive species

Rui Huang,Brad Nakamura,Rosemary Senguttuvan,Yi-Jia Li,Antons Martincuks,Rania Bakkar,Mihae Song,David K Ann,Lorna Rodriguez-Rodriguez,Hua Yu
View all publications

Product promise

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