Product nameAnti-Telomerase reverse transcriptase antibody [Y182]
See all Telomerase reverse transcriptase primary antibodies
DescriptionRabbit monoclonal [Y182] to Telomerase reverse transcriptase
Tested applicationsSuitable for: WB, Flow Cyt, IP, IHC-P, IHC-Frmore details
Unsuitable for: ICC/IF
Species reactivityReacts with: Cow, Human
Synthetic peptide within Human Telomerase reverse transcriptase aa 1100-1200 (C terminal). The exact sequence is proprietary.
- WB: Hela cell lysate. IHC-P: Human thymus tissue.
Mouse: We have preliminary internal testing data to indicate this antibody may not react with this species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 49% PBS, 50% Glycerol, 0.05% BSA
Concentration information loading...
Purification notesCells supernatant
Our Abpromise guarantee covers the use of ab32020 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/1000. Detects a band of approximately 122 kDa (predicted molecular weight: 127 kDa).|
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
|IP||Use at an assay dependent concentration.|
|IHC-P||Use at an assay dependent concentration. PubMed: 20367640|
|IHC-Fr||Use a concentration of 0.75 µg/ml. PubMed: 17982423|
FunctionTelomerase is a ribonucleoprotein enzyme essential for the replication of chromosome termini in most eukaryotes. Active in progenitor and cancer cells. Inactive, or very low activity, in normal somatic cells. Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme. Catalyzes the RNA-dependent extension of 3'-chromosomal termini with the 6-nucleotide telomeric repeat unit, 5'-TTAGGG-3'. The catalytic cycle involves primer binding, primer extension and release of product once the template boundary has been reached or nascent product translocation followed by further extension. More active on substrates containing 2 or 3 telomeric repeats. Telomerase activity is regulated by a number of factors including telomerase complex-associated proteins, chaperones and polypeptide modifiers. Modulates Wnt signaling. Plays important roles in aging and antiapoptosis.
Tissue specificityExpressed at a high level in thymocyte subpopulations, at an intermediate level in tonsil T lymphocytes, and at a low to undetectable level in peripheral blood T lymphocytes.
Involvement in diseaseNote=Activation of telomerase has been implicated in cell immortalization and cancer cell pathogenesis.
Defects in TERT are associated with susceptibilty to aplastic anemia (AA) [MIM:609135]. AA is a rare disease in which the reduction of the circulating blood cells results from damage to the stem cell pool in bone marrow. In most patients, the stem cell lesion is caused by an autoimmune attack. T-lymphocytes, activated by an endogenous or exogenous, and most often unknown antigenic stimulus, secrete cytokines, including IFN-gamma, which would in turn be able to suppress hematopoiesis.
Note=Genetic variations in TERT are associated with coronary artery disease (CAD).
Defects in TERT are a cause of dyskeratosis congenita autosomal dominant (ADDKC) [MIM:127550]; also known as dyskeratosis congenita Scoggins type. ADDKC is a rare, progressive bone marrow failure syndrome characterized by the triad of reticulated skin hyperpigmentation, nail dystrophy, and mucosal leukoplakia. Early mortality is often associated with bone marrow failure, infections, fatal pulmonary complications, or malignancy.
Defects in TERT are a cause of susceptibility to pulmonary fibrosis idiopathic (IPF) [MIM:178500]. Pulmonary fibrosis is a lung disease characterized by shortness of breath, radiographically evident diffuse pulmonary infiltrates, and varying degrees of inflammation and fibrosis on biopsy. It results in acute lung injury with subsequent scarring and endstage lung disease.
Sequence similaritiesBelongs to the reverse transcriptase family. Telomerase subfamily.
Contains 1 reverse transcriptase domain.
DomainThe primer grip sequence in the RT domain is required for telomerase activity and for stable association with short telomeric primers.
The RNA-interacting domain 1 (RD1)/N-terminal extension (NTE) is required for interaction with the pseudoknot-template domain of each of TERC dimers. It contains anchor sites that bind primer nucleotides upstream of the RNA-DNA hybrid and is thus an essential determinant of repeat addition processivity.
The RNA-interacting domain 2 (RD2) is essential for both interaction with the CR4-CR5 domain of TERC and for DNA sythesis.
modificationsUbiquitinated, leading to proteasomal degradation.
Phosphorylation at Tyr-707 under oxidative stress leads to translocation of TERT to the cytoplasm and reduces its antiapoptotic activity. Dephosphorylated by SHP2/PTPN11 leading to nuclear retention. Phosphorylation by the AKT pathway promotes nuclear location.
Cellular localizationNucleus > nucleolus. Nucleus > nucleoplasm. Nucleus. Chromosome > telomere. Cytoplasm. Nucleus > PML body. Shuttling between nuclear and cytoplasm depends on cell cycle, phosphorylation states, transformation and DNA damage. Diffuse localization in the nucleoplasm. Enriched in nucleoli of certain cell types. Translocated to the cytoplasm via nuclear pores in a CRM1/RAN-dependent manner involving oxidative stress-mediated phosphorylation at Tyr-707. Dephosphorylation at this site by SHP2 retains TERT in the nucleus. Translocated to the nucleus by phosphorylation by AKT.
- Information by UniProt
- CMM9 antibody
- DKCA2 antibody
- DKCB4 antibody
Telomerase reverse transcriptase (TERT) expression increased in PH patients
TERT protein staining. TERT protein level was increased in the pulmonary vascular wall in Pulmonary hypertension (PH) patients (n = 5). In the animal experiments (n = 6), hypoxia or MCT administration significantly increased the expression of TERT protein compared with control rats, which were reversible by administration of azidothymidine (AZT, 20 mg/kg body weight).
Telomerase reverse transcriptase was detected using ab32020 at 1/50 dilution in 4% paraformaldehyde-fixed, paraffin-embedded lung tissue.
(From Figure 2A of Shen et al)
Anti-Telomerase reverse transcriptase antibody [Y182] (ab32020) at 1/1000 dilution + Hela (human epithelial cell line from cervix adenocarcinoma) cell lysate
Predicted band size: 127 kDa
Observed band size: 122 kDa why is the actual band size different from the predicted?
ab32020 staining Telomerase reverse transcriptase in human thymus tissue sections by Immunohistochemistry (IHC-P - paraformaldehyde-fixed, paraffin-embedded sections). Tissue was fixed with formaldehyde and blocked with 3% hydrogen peroxide for 10 minutes at 25°C; antigen retrieval was by heat mediation in citrate buffer pH6.0 at 100°C for 20 minutes. Samples were incubated with primary antibody (1/100) for 20 minutes at 25°C. An undiluted HRP polymer-conjugated goat anti-rabbit IgG polyclonal was used as the secondary antibody.
This product has been referenced in:
- Guzman H et al. miR-128 inhibits telomerase activity by targeting TERT mRNA. Oncotarget 9:13244-13253 (2018). Read more (PubMed: 29568354) »
- Li G et al. Alternative splicing of human telomerase reverse transcriptase in gliomas and its modulation mediated by CX-5461. J Exp Clin Cancer Res 37:78 (2018). Read more (PubMed: 29631594) »