Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
Storage bufferpH: 7.40
Preservative: 0.097% Sodium azide
Constituent: 0.0268% PBS
Concentration information loading...
PurityProtein G purified
Our Abpromise guarantee covers the use of ab10579 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ELISA||Use at an assay dependent concentration.|
|WB||Use a concentration of 2 - 4 µg/ml. Predicted molecular weight: 50 kDa.|
|IHC-P||1/100. PubMed: 18641004|
FunctionBinds the telomeric double-stranded TTAGGG repeat and negatively regulates telomere length. Involved in the regulation of the mitotic spindle. Component of the shelterin complex (telosome) that is involved in the regulation of telomere length and protection. Shelterin associates with arrays of double-stranded TTAGGG repeats added by telomerase and protects chromosome ends; without its protective activity, telomeres are no longer hidden from the DNA damage surveillance and chromosome ends are inappropriately processed by DNA repair pathways.
Tissue specificityHighly expressed and ubiquitous. Isoform Pin2 predominates.
Sequence similaritiesContains 1 HTH myb-type DNA-binding domain.
DomainThe acidic N-terminal domain binds to the ankyrin repeats of TNKS1 and TNKS2. The C-terminal domain binds microtubules.
The TRFH dimerization region mediates the interaction with TINF2.
modificationsPhosphorylated preferentially on Ser-219 in an ATM-dependent manner in response to ionizing DNA damage.
ADP-ribosylation by TNKS1 or TNKS2 diminishes its ability to bind to telomeric DNA.
Ubiquitinated by RLIM/RNF12, leading to its degradation by the proteasome. Ubiquitinated by a SCF (SKP1-CUL1-F-box protein) ubiquitin-protein ligase complex, leading to its degradation by the proteasome.
Cellular localizationNucleus. Cytoplasm > cytoskeleton > spindle. Chromosome > telomere. Colocalizes with telomeric DNA in interphase and metaphase cells and is located at chromosome ends during metaphase. Associates with the mitotic spindle.
- Information by UniProt
- hTRF1 AS antibody
- NIMA interacting protein 2 antibody
- NIMA-interacting protein 2 antibody
Immunocytochemistry/ Immunofluorescence analysis of HeLa cells labeling TRF1 with ab10579. cells were fixed and permeabilized with 4% paraformaldehyde followed by 0.5% Triton™ X-100. Fixed cells were stained with 10 μg/mL Anti-TRF1 antibody [TRF-78] (ab10579). The antibody was developed using Goat Anti-Mouse IgG, Cy3 conjugate. Cells were counterstained with DAPI (blue) to stain nuclei.
All lanes : Anti-TRF1 antibody [TRF-78] (ab10579) at 4 µg/ml
Lane 1 : HeLa Nuclear Cell lysate
Lane 2 : HeLa Cell lysate
Lane 3 : HEK-293T Cell lysate
Lane 4 : U2OS Cell lysate
Lane 5 : HepG2 Cell lysate
All lanes : Goat Anti-Mouse IgG-Peroxidase
Predicted band size: 50 kDa
Immunofluorescent imaging of human cells (U2OS) with ab10579 confirms the specificity of this antibody. A few intense nuclear foci are seen in interphase cells, corresponding to telomeric localisation. The complete absence of background nuclear or cytoplasmic staining confirms the specificity of this antibody. This image is in exact agreement with numerous published reports.
IF was performed with a standard paraformaldehyde technique (fixed in PBS buffered PFH 4% for 5 minutes, permeabilised with 0.5% triton-PBS for 5 minutes, blocked with 5% milk / 0.2% tween for one hour. Primary antibody used at 1/100 in 5% milk / 0.2% TWEEN for one hour, secondary antibody for 30 minutes. All blocking and incubation steps carried out at 37 degrees. Nuclei are visualised using Hoechst stain.
ab10579 at 1/500 staining human HeLa cells by ICC/IF. The cells were parafomaldehyde fixed and blocked with BSA prior to incubation with the antibody for 45 minutes. An Alexa Fluor® 555 conjugated donkey anti-mouse antibody was used as the secondary.
This product has been referenced in:
- Wang J et al. Photosensitization of A2E triggers telomere dysfunction and accelerates retinal pigment epithelium senescence. Cell Death Dis 9:178 (2018). ICC/IF ; Human . Read more (PubMed: 29415988) »
- Krastev DB et al. Coupling bimolecular PARylation biosensors with genetic screens to identify PARylation targets. Nat Commun 9:2016 (2018). Read more (PubMed: 29789535) »