Use at an assay dependent concentration. Can be paired for Sandwich ELISA with Rabbit monoclonal [PSH29-28] to Human HSPA1L (Capture) (HA724857) and Recombinant Human HSPA1L protein (HA211506) as the standard. The reference range value is 78.1-20,000 pg/mL.
ELISA
Use at an assay dependent concentration.
Target
Function
The heat shock proteins (HSPs) comprise a group of highly conserved, abundantly expressed proteins with diverse functions, including the assembly and sequestering of multi-protein complexes, the transportation of nascent poly-peptide chains across cellular membranes and the regulation of protein folding. The gene is located in the major histocompatibility complex class III region, in a cluster with two closely related genes which also encode isoforms of the 70kDa heat shock protein. HSPA1L (heat shock 70 kDa protein 1L), also known as HSP70T, is a 641 amino acid protein that belongs to the HSP 70 family and, like other HSP proteins, mediates protein folding within the cytosol, as well as within other organelles throughout the cell. HSP proteins, such as HSPA1L, together with chaperones, bind extended peptide segments with a net hydrophobic character exposed during protein translation, membrane translocation or after stress-induced damage. HSPA1L has been found be expressed in spermatids and is not induced by heat shock.
Background References
1. Radons J. The human HSP70 family of chaperones: where do we stand Cell Stress Chaperones 21:379-404 (2016).
2. Hasson S A et al. High-content genome-wide RNAi screens identify regulators of parkin upstream of mitophagy. Nature 504:291-295 (2013).
Sandwich ELISA analysis of Human HSPA1L protein matched pair antibodies
Capture: HA724857, Human HSPA1L Rabbit mAb [PSH29-28] Detector: HA724858, Human HSPA1L Rabbit mAb [PSH29-29]
Elisa assay was performed by coating wells of a 96-well plate with 100 µl per well of capture antibody (HA724857) diluted in carbonate/bicarbonate buffer, at a concentration of 2 μg/mL overnight at 4℃. Wells of the plate were washed, blocked with 150 µl 0.05% tween-20 1% BSA blocking buffer, and incubated with serial diluted Recombinant Human HSPA1L protein (HA211506) starting from 20,000 pg/mL to 0 pg/mL and detect antibody (HA724858, Biotin, 0.2 μg/mL) for 1 hour at 30℃ with shaking. Then the plate was washed and incubated with 100 µl per well of SA-HRP for 0.5 hour at 30℃ with shaking. Detection was performed using an Ultra TMB Substrate for 10 minutes at room temperature in the dark. The reaction was stopped with sulfuric acid and absorbances were read on a spectrophotometer at 450 nm.
Interpolated concentrations of native HSPA1L in NCI-H1299 extract samples based on a 1,000 µg/mL extract load.
Capture: HA724857, Human HSPA1L Rabbit mAb [PSH29-28] Detector: HA724858, Human HSPA1L Rabbit mAb [PSH29-29]
Interpolated concentration of native HSPA1L was measured in duplicate at different sample concentrations and interpolated from the HSPA1L standard curves. The interpolated dilution factor corrected values were plotted (mean +/- SD, n=2). The mean HSPA1L concentration was determined to be 3,053 pg/mL in NCI-H1299 cell extract.
Interpolated concentrations of spiked HSPA1L in cell culture media samples.
Capture: HA724857, Human HSPA1L Rabbit mAb [PSH29-28] Detector: HA724858, Human HSPA1L Rabbit mAb [PSH29-29]
The concentrations of HSPA1L were measured in duplicates, interpolated from the HSPA1L standard curves and corrected for sample dilution. Diluted samples are as follows: 50% cell culture media with FBS. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2).
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