Key Product Details

Species Reactivity

Human

Applications

Western Blot, Immunocytochemistry, Chromatin Immunoprecipitation (ChIP)

Label

DyLight 755 (Excitation = 754 nm, Emission = 776 nm)

Antibody Source

Polyclonal Goat IgG
View all RUNX2/CBFA1 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human RUNX2/CBFA1 isoform 2
Lys219-Tyr404
Accession # Q13950

Specificity

Detects human RUNX2/CBFA1 in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross-reactivity with recombinant human (rh) RUNX1 and rhRUNX3 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications for RUNX2/CBFA1 Antibody [DyLight 755]

Application
Recommended Usage

Chromatin Immunoprecipitation (ChIP)

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry

Optimal dilutions of this antibody should be experimentally determined.

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: RUNX2/CBFA1

Runt-related transcription factor 2 (RUNX2), also known as CBFA1, AML-3, PEBP-2alphaA, and OSF-2, is a transcription factor that places a critical role in osteoblast differentiation and bone development (1-3). RUNX2 is a DNA-binding protein that belongs to the RUNX family which share a common runt domain (3). RUNX2 has two main isoforms which vary based on the two promoter regions (3). The main canonical isoform (P1) has MASN/DS at its N-terminus while the other (P2) isoform includes a MRIPV pentapeptide at its N-terminus (3). The RUNX2 P1 isoform has a theoretical molecular weight of 56 kDa and is synthesized as a 521 amino acid (aa) protein containing multiple domains. Specifically, RUNX2 contains transactivation domains (AD1, 2 and 3), a glutamine/alanine (Q/A)-rich domain, a runt homology domain (RHD), a nuclear localization signal (NLS), a proline/serine/threonine (PST)-rich domain, a nuclear matrix targeting signal (NMTS), a repression domain (RD), and a VWRPY region (3). RUNX2 is a heterodimer of an alpha and beta subunit where the alpha subunit binds DNA through the runt domain and the binding affinity is increased through heterodimerization (4).

Functionally, RUNX2 promotes the expression of osteoblast-specific genes vital for the osteoblast differentiation and proliferation process including type I collagen, osteocalcin (OCN), and alkaline phosphatase (APC) (1, 3). Further evidence for the role of RUNX2 is highlighted by a study of Runx2-/-mice which completely lack osteoblasts (4). Additionally, RUNX2 is also required for chondrocyte maturation, which are the cells responsible for cartilage formation (1, 3, 5). Given the role of RUNX2 in bone and cartilage maturation and formation, it is clear that defects or mutations in RUNX2 cause various bone and bone-related diseases (3, 6, 7). For instance, cleidocranial dysplasia (CCD), which presents with delayed cranial suture closure phenotypes, hypoplastic clavicles, extra teeth, and short stature, is caused by haploinsufficiency in RUNX2 (2, 3, 6). Furthermore, metaphyseal dysplasia with maxillary hypoplasia and brachydactyly (MDMHB) is a bone dysplasia disorder with a phenotype of abnormalities in the long bones, an underdeveloped jawbone, and short fingers that is caused by a duplication in RUNX2 (6). Finally, RUNX2 has been shown to be upregulated in mouse models of the joint disorder osteoarthritis (OA) and may be a potential molecular target for disease treatment (7).

Alternative names for RUNX2 include Acute myeloid leukemia 3 protein CBFA1, CBF-alpha-1, CCD1, CCDAML3, CLCD, Core-binding factor subunit alpha-1, MGC120023, ML3, oncogene AML-3, OSF2, osteoblast-specific transcription factor 2, PEA2aA, PEA2-alpha A, PEBP2A, polyomavirus enhancer-binding protein 2 alpha A subunit, runt related transcription factor 2, SL3/AKV core-binding factor alpha A subunit, and SL3-3 enhancer factor 1 alpha A subunit.

References

1. Ferreira, L. B., Gimba, E., Vinagre, J., Sobrinho-Simoes, M., & Soares, P. (2020). Molecular Aspects of Thyroid Calcification. International journal of molecular sciences. https://doi.org/10.3390/ijms21207718

2. Kim, W. J., Shin, H. L., Kim, B. S., Kim, H. J., & Ryoo, H. M. (2020). RUNX2-modifying enzymes: therapeutic targets for bone diseases. Experimental & molecular medicine. https://doi.org/10.1038/s12276-020-0471-4

3. Vimalraj, S., Arumugam, B., Miranda, P. J., & Selvamurugan, N. (2015). Runx2: Structure, function, and phosphorylation in osteoblast differentiation. International journal of biological macromolecules. https://doi.org/10.1016/j.ijbiomac.2015.04.008

4. Uniprot (Q13950)

5. Komori T. (2017). Roles of Runx2 in Skeletal Development. Advances in experimental medicine and biology. https://doi.org/10.1007/978-981-10-3233-2_6

6. Moffatt, P., Ben Amor, M., Glorieux, F. H., Roschger, P., Klaushofer, K., Schwartzentruber, J. A., Paterson, A. D., Hu, P., Marshall, C., FORGE Canada Consortium, Fahiminiya, S., Majewski, J., Beaulieu, C. L., Boycott, K. M., & Rauch, F. (2013). Metaphyseal dysplasia with maxillary hypoplasia and brachydactyly is caused by a duplication in RUNX2. American journal of human genetics. https://doi.org/10.1016/j.ajhg.2012.12.001

7. Chen, D., Kim, D. J., Shen, J., Zou, Z., & O'Keefe, R. J. (2019). Runx2 plays a central role in Osteoarthritis development. Journal of orthopaedic translation. https://doi.org/10.1016/j.jot.2019.11.008

Long Name

Runt-related Transcription Factor 2

Alternate Names

CBFA1

Gene Symbol

RUNX2

Additional RUNX2/CBFA1 Products

Product Documents for RUNX2/CBFA1 Antibody [DyLight 755]

Certificate of Analysis

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Product Specific Notices for RUNX2/CBFA1 Antibody [DyLight 755]



DyLight (R) is a trademark of Thermo Fisher Scientific Inc. and its subsidiaries.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

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FAQs for RUNX2/CBFA1 Antibody [DyLight 755]

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    • Q: We would like an anti-RUNX2 for IHC-P which share cross reactivity with Rat, but not with Human.
      A: We don't have any data for our RUNX2 antibodies that confirms they will NOT detect the human protein. When we can confirm that an antibody will not react with a certain species, we display a (-) sign on the datasheet. Otherwise, if the species is not listed it means that it has not been tested.
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