a telomeric repeat binding factor. Binds the telomeric double-stranded TTAGGG repeat and negatively regulates telomere length. Colocalizes with telomeric DNA in interphase and metaphase cells and is located at chromosome ends during metaphase. Involved in the regulation of the mitotic spindle. Expression is tightly regulated during the cell cycle; levels are low in G1 and S phase and increase during G2 phase and mitosis. Two splice variant isoforms have been described. Note: This description may include information from UniProtKB.
Molecular Function: DNA bending activity; DNA binding; double-stranded telomeric DNA binding; microtubule binding; protein binding; protein heterodimerization activity; protein homodimerization activity; telomerase activity; telomeric DNA binding; ubiquitin binding
Biological Process: cell division; G2/M transition of mitotic cell cycle; mitosis; mitotic cell cycle spindle assembly checkpoint; negative regulation of DNA replication; negative regulation of telomerase activity; negative regulation of telomere maintenance via semi-conservative replication; negative regulation of telomere maintenance via telomerase; positive regulation of apoptosis; positive regulation of microtubule polymerization; positive regulation of mitosis; positive regulation of mitotic cell cycle; protein homooligomerization; response to drug; telomere clustering; telomere maintenance; telomere maintenance via telomerase
LTP: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.