Human TIA1 ELISA Kit is a single-wash 90-min Simplestep used to quantify Human TIA1 with a sensitivity of 117 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.
- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
Images
Key facts
- Detection method
- Colorimetric
- Sample types
- Cell culture extracts
- Assay type
- Sandwich (quantitative)
- Reactive species
- Human
- Range
- 188 - 12000 pg/mL
- Assay time
- 1h 30m
- Sensitivity
- = 117 pg/mL
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application sELISA | Reactivity Reacts | Dilution info - | Notes - |
Target data
Function
RNA-binding protein involved in the regulation of alternative pre-RNA splicing and mRNA translation by binding to uridine-rich (U-rich) RNA sequences (PubMed:11106748, PubMed:12486009, PubMed:17488725, PubMed:8576255). Binds to U-rich sequences immediately downstream from a 5' splice sites in a uridine-rich small nuclear ribonucleoprotein (U snRNP)-dependent fashion, thereby modulating alternative pre-RNA splicing (PubMed:11106748, PubMed:8576255). Preferably binds to the U-rich IAS1 sequence in a U1 snRNP-dependent manner; this binding is optimal if a 5' splice site is adjacent to IAS1 (By similarity). Activates the use of heterologous 5' splice sites; the activation depends on the intron sequence downstream from the 5' splice site, with a preference for a downstream U-rich sequence (PubMed:11106748). By interacting with SNRPC/U1-C, promotes recruitment and binding of spliceosomal U1 snRNP to 5' splice sites followed by U-rich sequences, thereby facilitating atypical 5' splice site recognition by U1 snRNP (PubMed:11106748, PubMed:12486009, PubMed:17488725). Activates splicing of alternative exons with weak 5' splice sites followed by a U-rich stretch on its own pre-mRNA and on TIAR mRNA (By similarity). Acts as a modulator of alternative splicing for the apoptotic FAS receptor, thereby promoting apoptosis (PubMed:11106748, PubMed:17488725, PubMed:1934064). Binds to the 5' splice site region of FAS intron 5 to promote accumulation of transcripts that include exon 6 at the expense of transcripts in which exon 6 is skipped, thereby leading to the transcription of a membrane-bound apoptotic FAS receptor, which promotes apoptosis (PubMed:11106748, PubMed:17488725, PubMed:1934064). Binds to a conserved AU-rich cis element in COL2A1 intron 2 and modulates alternative splicing of COL2A1 exon 2 (PubMed:17580305). Also binds to the equivalent AT-rich element in COL2A1 genomic DNA, and may thereby be involved in the regulation of transcription (PubMed:17580305). Binds specifically to a polypyrimidine-rich controlling element (PCE) located between the weak 5' splice site and the intronic splicing silencer of CFTR mRNA to promote exon 9 inclusion, thereby antagonizing PTB1 and its role in exon skipping of CFTR exon 9 (PubMed:14966131). Involved in the repression of mRNA translation by binding to AU-rich elements (AREs) located in mRNA 3' untranslated regions (3' UTRs), including target ARE-bearing mRNAs encoding TNF and PTGS2 (By similarity). Also participates in the cellular response to environmental stress, by acting downstream of the stress-induced phosphorylation of EIF2S1/EIF2A to promote the recruitment of untranslated mRNAs to cytoplasmic stress granules (SGs), leading to stress-induced translational arrest (PubMed:10613902). Formation and recruitment to SGs is regulated by Zn(2+) (By similarity). Possesses nucleolytic activity against cytotoxic lymphocyte target cells (PubMed:1934064). Isoform Short. Displays enhanced splicing regulatory activity compared with TIA isoform Long.
Alternative names
Cytotoxic granule associated RNA binding protein TIA1, Nucleolysin TIA-1 isoform p40, RNA-binding protein TIA-1, T-cell-restricted intracellular antigen-1, p40-TIA-1, TIA-1, TIA1
What's included?
Recommended products
Human TIA1 ELISA Kit is a single-wash 90-min Simplestep used to quantify Human TIA1 with a sensitivity of 117 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.
- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
Key facts
- Detection method
- Colorimetric
- Sample types
- Cell culture extracts
- Assay type
- Sandwich (quantitative)
- Reactive species
- Human
- Range
- 188 - 12000 pg/mL
- Assay time
- 1h 30m
- Assay Platform
- Pre-coated microplate (12 x 8 well strips)
- Sensitivity
- = 117 pg/mL
Precision
Intra assay
| Sample | n | mean | SD | C.V. |
|---|---|---|---|---|
Sample Cell Extract | n 5 | mean - | SD - | C.V. 6.8 |
Inter assay
| Sample | n | mean | SD | C.V. |
|---|---|---|---|---|
Sample Cell Extract | n 3 | mean - | SD - | C.V. 4.8 |
Recovery
Sample specific recovery
| Sample type | Average % | Range |
|---|---|---|
Sample type Cell culture extracts | Average % = 109 | Range 105 - 114 % |
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- +4°C
- Storage information
- +4°C
Notes
Human TIA1 ELISA Kit (ab231921) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of TIA1 protein in cell culture extracts. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human TIA1 with 117 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips
A 384-well SimpleStep ELISA® microplate (Pre-coated 384 well Microplate SimpleStep ELISA® ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
TIA1 also known as T-cell intracellular antigen 1 is a protein that plays a role in RNA binding and regulation of gene expression. It possesses a molecular mass of approximately 43 kDa. TIA1 is characterized by its presence in the cytoplasm of various cell types including immune cells and neuronal cells. It contains three RNA recognition motifs (RRM) that enable it to interact with its RNA targets and modulate their fate during cellular stress.
- Biological function summary
TIA1 functions in the assembly of stress granules which are aggregates of proteins and RNAs that form in response to cellular stress. It is part of a complex dynamic system that regulates mRNA translation by directing untranslated mRNAs to stress granules thereby influencing gene expression at the post-transcriptional level. TIA1 is implicated in apoptosis and can bind with other proteins like HuR to affect mRNA stability and translation.
- Pathways
TIA1 participates in stress response signaling and apoptotic pathways. It is involved in the regulation of mRNA metabolism playing a critical role in the cellular stress response pathway by modulating the translation and stability of mRNAs during stress. TIA1 interacts with kinases like JNK to mediate these stress responses and works alongside related proteins including G3BP to organize mRNAs into stress granules.
- Associated diseases and disorders
TIA1 has been linked to conditions such as neurodegenerative diseases and certain types of cancer. Mutations or dysregulations in TIA1 expression can lead to disorders characterized by defective stress granule formation and RNA metabolism. In the context of amyotrophic lateral sclerosis (ALS) TIA1 interacts with proteins like TDP-43 which have roles in similar pathological aggregation processes.
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2 product images
Sandwich ELISA - Human TIA1 ELISA Kit (ab231921)
Example of human TIA1 standard curve in 1X Cell Extraction Buffer PTR.
Background-subtracted data values (mean +/- SD) are graphed.
Sandwich ELISA - Human TIA1 ELISA Kit (ab231921)
Interpolated concentrations of native TIA1 in human Jurkat, HUVEC, HepG2, and MOLT-4 cell extract samples based on 250 μg/mL, 500 μg/mL, 500 μg/mL, and 200 μg/mL extract loads, respectively.
The concentrations of TIA1 were measured in duplicate and interpolated from the TIA1 standard curve and corrected for sample dilution. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean TIA1 concentration was determined to be 11,185 pg/mL in Jurkat, 10,313 pg/ml in HUVEC, 9394 pg/ml in HepG2, and 5,642 pg/mL in MOLT-4 cell extract samples.
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