Synthetic peptide within Human TDP43 aa 354-390 / 414; (2)aa 253-290 / 414.
Species Reactivity
Human, Mouse, Rat (Predicted: Zebrafish, Cynomolgus monkey, Pig)
Predicted species support after-sales service
Validated Applications
WB, IP, IF-Cell, IF-Tissue, IHC-P, FC, IHC-Fr
Target Molecular Weight
Predicted band size: 45 kDa
Positive Control
HeLa cell lysate, K-562 cell lysate, Neuro-2a cell lysate, mouse spleen tissue lysate, mouse brain tissue lysate, rat spleen tissue lysate, rat brain tissue lysate, HeLa, Neuro-2a, human spleen tissue, mouse placenta tissue, human pancreas tissue, mouse hippocampus tissue, mouse cerebral cortex tissue, mouse cerebrum tissue.
Conjugation
unconjugated
Clone Number
JM51-10
Product Features
Form
Liquid
Concentration
Lot Concentration Lookup
Storage Instructions
Store at 2-8℃. Avoid freeze.
Storage Buffer
1*PBS (pH7.4).
Isotype
IgG
Purification Method
Protein A affinity purified.
Application Dilution
Target
Function
TDP-43 is a transcriptional repressor that binds to chromosomally integrated TAR DNA and represses HIV-1 transcription. In addition, this protein regulates alternate splicing of the CFTR gene. TDP-43 has been shown to bind both DNA and RNA and have multiple functions in transcriptional repression, pre-mRNA splicing and translational regulation. Recent work has characterized the transcriptome-wide binding sites revealing that thousands of RNAs are bound by TDP-43 in neurons. TDP-43 was originally identified as a transcriptional repressor that binds to chromosomally integrated trans-activation response element (TAR) DNA and represses HIV-1 transcription. It was also reported to regulate alternate splicing of the CFTR gene and the apoA-II gene. In spinal motor neurons TDP-43 has also been shown in humans to be a low molecular weight neurofilament (hNFL) mRNA-binding protein. It has also shown to be a neuronal activity response factor in the dendrites of hippocampal neurons suggesting possible roles in regulating mRNA stability, transport and local translation in neurons. It has been demonstrated that zinc ions are able to induce aggregation of endogenous TDP-43 in cells. Moreover, zinc could bind to RNA binding domain of TDP-43 and induce the formation of amyloid-like aggregates in vitro.
Background References
1. McMillan M et al. RNA methylation influences TDP43 binding and disease pathogenesis in models of amyotrophic lateral sclerosis and frontotemporal dementia. Mol Cell. 2023 Jan
2. Corbet GA et al. TDP43 ribonucleoprotein granules: physiologic function to pathologic aggregates. RNA Biol. 2021 Oct
Tissue Specificity
Ubiquitously expressed. In particular, expression is high in pancreas, placenta, lung, genital tract and spleen.
Post-translational Modification
Hyperphosphorylated in hippocampus, neocortex, and spinal cord from individuals affected with ALS and FTLDU. Phosphorylated upon cellular stress.; Ubiquitinated in hippocampus, neocortex, and spinal cord from individuals affected with ALS and FTLDU.; Cleaved to generate C-terminal fragments in hippocampus, neocortex, and spinal cord from individuals affected with ALS and FTLDU.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Western blot analysis of TDP43 on different lysates with Rabbit anti-TDP43 antibody (ET1703-74) at 1/1,000 dilution.
Lane 1: HeLa cell lysate Lane 2: K-562 cell lysate Lane 3: Neuro-2a cell lysate Lane 4: Mouse spleen tissue lysate Lane 5: Mouse brain tissue lysate Lane 6: Rat spleen tissue lysate Lane 7: Rat brain tissue lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 45 kDa Observed band size: 45 kDa
Exposure time: 20 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (ET1703-74) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Application: IHC-Fr
Species: Mouse
Site: Cerebral cortex
Sample: Frozen section
Antibody concentration: 1/200
Antigen retrieval: The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) for about 2 minutes in microwave oven.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Immunocytochemistry analysis of HeLa cells labeling TDP43 with Rabbit anti-TDP43 antibody (ET1703-74) at 1/250 dilution.
Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-TDP43 antibody (ET1703-74) at 1/250 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Immunocytochemistry analysis of Neuro-2a cells labeling TDP43 with Rabbit anti-TDP43 antibody (ET1703-74) at 1/500 dilution.
Cells were fixed in 4% paraformaldehyde for 20 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 5 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-TDP43 antibody (ET1703-74) at 1/500 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (M1305-2, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Immunohistochemical analysis of paraffin-embedded human spleen tissue with Rabbit anti-TDP43 antibody (ET1703-74) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1703-74) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Immunohistochemical analysis of paraffin-embedded mouse placenta tissue with Rabbit anti-TDP43 antibody (ET1703-74) at 1/1,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH 6.0) (high pressure) for 2 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ET1703-74) at 1/1,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
This data was developed using ET1703-74, the same antibody clone in a different buffer formulation. Flow cytometric analysis of TDP43 was done on Hela cells. The cells were fixed, permeabilized and stained with the primary antibody (ET1703-74, 1/50) (red). After incubation of the primary antibody at room temperature for an hour, the cells were stained with a Alexa Fluor 488-conjugated Goat anti-Rabbit IgG Secondary antibody at 1/1000 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
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