Anti-TRF2 antibody [EPR3518(2)]

Supplementary info

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

Activity summary

TRF2 also known as Telomeric Repeat-binding Factor 2 is a protein important for telomere protection and maintenance. TRF2 weighs approximately 55 kDa and is widely expressed in human tissues especially in those with high turnover rates. This protein binds specifically to double-stranded telomeric DNA and forms a protective cap at the end of chromosomes helping to regulate telomere length and integrity. By securing the telomere's structure TRF2 prevents chromosomes from being recognized as damaged DNA.

Biological function summary

TRF2 plays a central role in telomere function by assembling into the shelterin complex. This complex which includes other proteins like TRF1 TIN2 POT1 TPP1 and RAP1 is essential for controlling telomere length and stability. TRF2 is responsible for inhibiting DNA damage response pathways at telomeres ensuring that the natural chromosomal ends are not mistaken for double-strand breaks. This suppression of unwanted DNA damage response is important for normal cell division and avoiding cellular senescence.

Pathways

Researchers have placed TRF2 within the DNA repair and telomere maintenance pathways. TRF2 interacts with several other proteins such as Ku70/80 and RAD51 that are instrumental in the DNA repair process. Furthermore TRF2 influences the Alternative Lengthening of Telomeres (ALT) pathway which is a telomere lengthening process found in some cancer cells. These connections highlight TRF2's role in maintaining genomic stability through its capacity to regulate telomere-associated proteins and pathways.

Associated diseases and disorders

TRF2 has been linked to cancer and aging. Elevated levels of TRF2 have been detected in various cancers including breast and prostate cancer suggesting a role in tumorigenesis where it contributes to the stability of cancer cell telomeres. Additionally defects in TRF2 or its interaction with partner proteins like POT1 can lead to dysfunctional telomeres which contribute to the aging process and age-related diseases by affecting cell proliferation and survival. These links demonstrate the importance of TRF2 in normal cellular function and its potential as a therapeutic target in disease intervention.