TRF-2 Antibody (4A794.15) [Janelia Fluor® 635]
Novus Biologicals, part of Bio-Techne | Catalog # NB100-56506JF635
Conjugate
Catalog #
Key Product Details
Species Reactivity
Human, Mouse, Rat, Deer, Marsupial
Applications
Chromatin Immunoprecipitation (ChIP), CyTOF-ready, ELISA, Flow (Intracellular), Flow Cytometry, Immunoblotting, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Immunoprecipitation, Proximity Ligation Assay, Simple Western, Western Blot
Label
Janelia Fluor 635
Antibody Source
Monoclonal Mouse IgG1 kappa Clone # 4A794.15
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.
Product Specifications
Immunogen
This TRF-2 Antibody (4A794.15) was developed against Baculovirus expressed whole length TRF2 protein, used for immunizing mice and splenocytes used to generate the hybridoma clone (NP_005643).
Specificity
The TRF2 antibody recognizes full-length TRF2 as well as TRF2 forms lacking both the N-terminal basic domain (B) and the telobox Myb-like C-terminal DNA-binding domain (M). TRF2 forms missing the B and M domains are often referred to as mutant TRF2. Although the exact epitope recognized by the TRF2 antibody has not been mapped, the scientific literature indicates it is in the D or L domain, but not in the B or M domain.
Clonality
Monoclonal
Host
Mouse
Isotype
IgG1 kappa
Applications for TRF-2 Antibody (4A794.15) [Janelia Fluor® 635]
Application
Recommended Usage
Chromatin Immunoprecipitation (ChIP)
Optimal dilutions of this antibody should be experimentally determined.
CyTOF-ready
Optimal dilutions of this antibody should be experimentally determined.
ELISA
Optimal dilutions of this antibody should be experimentally determined.
Flow (Intracellular)
Optimal dilutions of this antibody should be experimentally determined.
Flow Cytometry
Optimal dilutions of this antibody should be experimentally determined.
Immunoblotting
Optimal dilutions of this antibody should be experimentally determined.
Immunocytochemistry/ Immunofluorescence
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry-Frozen
Optimal dilutions of this antibody should be experimentally determined.
Immunohistochemistry-Paraffin
Optimal dilutions of this antibody should be experimentally determined.
Immunoprecipitation
Optimal dilutions of this antibody should be experimentally determined.
Proximity Ligation Assay
Optimal dilutions of this antibody should be experimentally determined.
Simple Western
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
Protein G 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: TRF-2
Both TRF2 and TRF1 bind to telomeric double stranded 5'-TTAGGG-3' DNA repeats, then recruit RAP1, TIN2, TPP1, and POT1 for the assembly of the shelterin complex. The telomeric association of TRF2 is greatly increased in the S phase of the cell cycle (2). Loss of TRF2 leads to telomere shortening, the DNA damage response, chromosomal instability, and replicative senescence. Interestingly, the contribution of TRF2 to telomere shortening via a telomerase-independent mechanism has also been reported (3). In conjunction with the exonuclease, Apollo, TRF2 protects telomeres during replication and negatively regulates the accumulation of DNA topoisomerase (TOP1, TOP2A and TOP2B).
TRF2 has been implicated in cancer, shown to be a major oncogene in telomerase-deficient mice. A link to Werner syndrome, a premature aging disease caused by the loss of WRN, has been reported based on TRF2 recruitment of WRN for processing of telomeric DNA (4). TRF2 expression is increased during human embryonic stem cell differentiation and has been shown to interact with Repressor Element-1 Silencing Transcription Factor (REST), protecting it from proteasomal degradation (5).
References
1. Grammatikakis, I., Zhang, P., Mattson, M. P., & Gorospe, M. (2016). The long and the short of TRF2 in neurogenesis. Cell cycle (Georgetown, Tex.), 15(22), 3026-3032. PMID: 27565210
2. Li, F., Kim, H., Ji, Z., Zhang, T., Chen, B., Ge, Y., Hu, Y., Feng, X., Han, X., Xu, H., Zhang, Y., Yu, H., Liu, D., Ma, W., & Songyang, Z. (2018). The BUB3-BUB1 Complex Promotes Telomere DNA Replication. Molecular cell, 70(3), 395-407. PMID: 29727616
3. Ancelin, K., Brunori, M., Bauwens, S., Koering, C. E., Brun, C., Ricoul, M., Pommier, J. P., Sabatier, L., & Gilson, E. (2002). Targeting assay to study the cis functions of human telomeric proteins: evidence for inhibition of telomerase by TRF1 and for activation of telomere degradation by TRF2. Molecular and cellular biology, 22(10), 3474-3487. PMID: 11971978
4. Machwe A, Xiao L, & Orren DK. (2004) TRF2 recruits the Werner syndrome (WRN) exonuclease for processing of telomeric DNA. Oncogene. 23(1):149-56. PMID: 14712220.
5. Diotti, R., & Loayza, D. (2011). Shelterin complex and associated factors at human telomeres. Nucleus (Austin, Tex.), 2(2), 119-135. PMID: 21738835
Long Name
Telomeric Repeat Binding Factor 2
Alternate Names
TERF2, TRBF2, TRF2
Gene Symbol
TERF2
Additional TRF-2 Products
Product Documents for TRF-2 Antibody (4A794.15) [Janelia Fluor® 635]
Product Specific Notices for TRF-2 Antibody (4A794.15) [Janelia Fluor® 635]
Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.
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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