TRF-2 Antibody (SR2115)
Novus Biologicals, part of Bio-Techne | Catalog # NBP3-21905
Recombinant Monoclonal Antibody
Key Product Details
Species Reactivity
Human
Applications
Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Western Blot
Label
Unconjugated
Antibody Source
Recombinant Monoclonal Rabbit IgG Clone # SR2115
Concentration
Please see the vial label for concentration. If unlisted please contact technical services.
Product Specifications
Immunogen
A synthesized peptide derived from human TRF-2 (Uniprot #: Q15554)
Specificity
Detects endogenous levels of total TRF-2
Clonality
Monoclonal
Host
Rabbit
Isotype
IgG
Theoretical MW
66 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Scientific Data Images for TRF-2 Antibody (SR2115)
Western Blot: TRF-2 Antibody (SR2115) [NBP3-21905] -
Western Blot: TRF-2 Antibody (SR2115) [NBP3-21905] - Western blot analysis using NBP3-21905 in Jurkat cell lysate.Applications for TRF-2 Antibody (SR2115)
Application
Recommended Usage
Immunocytochemistry/ Immunofluorescence
1:50-1:200
Immunohistochemistry
1:50-1:200
Western Blot
1:500-1:2000
Formulation, Preparation, and Storage
Purification
Affinity purified
Formulation
PBS, pH 7.4, 150mM NaCl, 50% glycerol.
Preservative
0.02% 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 short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
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 (SR2115)
Product Specific Notices for TRF-2 Antibody (SR2115)
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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