| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | RGS19; GAIP; RGSGAIP; G alpha interacting protein; G protein signalling regulator 19; guanine nucleotide binding protein alpha inhibiting activity polypeptide 3 interacting protein; regulator of G-protein sig |
| Assay Time | |
| Assay Type | |
| Detection Method | |
| Gene ID | |
| Product Type | |
| Reactivity | |
| Sample Type(s) | Cell culture supernatants, Serum, Plasma, Other biological fluids |
| Shipping | |
| Storage |
Features & Benefits
Human Regulator of G-protein signaling 19 (RGS19) ELISA Kit has high sensitivity and excellent specificity for detection of Human RGS19. No significant cross-reactivity or interference between Human RGS19 and analogues was observed.
Background
Sequence analysis predicted that GAIP is a 24.6-kD, hydrophilic protein that lacks a transmembrane domain and contains multiple potential phosphorylation sites. GAIP shares approximately 31% amino acid identity with regulator of G protein signaling-1 (RGS1) and -2 (RGS2); the 125-amino acid core domains of GAIP, RGS1, and RGS2 share approximately 64% homology.
Northern blot analysis detected a 1.6-kb GAIP transcript in lung, placenta, liver, heart, and pancreas, with almost no expression detected in brain, skeletal muscle, and kidney. Yeast 2-hybrid binding analyses showed that through its core domain, GAIP interacts strongly with GNAI3 and weakly with GNAI2, but does not interact with GNA11.
This Regulator of G-protein signaling 19 (RGS19) ELISA kit is validated for use with Cell culture supernatants, Serum, Plasma, Other biological fluids. Samples should be collected, processed, and stored correctly to preserve analyte integrity — avoid repeated freeze-thaw cycles and centrifuge to remove particulates before use. Dilute samples exceeding the kit's detection range using the supplied assay diluent. Hemolytic, icteric, or lipemic samples may affect assay performance and should be tested with caution.
This is a sandwich ELISA kit employing an HRP (horseradish peroxidase)-conjugated secondary antibody paired with a TMB (3,3′,5,5′-tetramethylbenzidine) colorimetric substrate. In the sandwich format, the target analyte Regulator of G-protein signaling 19 (RGS19) captured on the microplate surface is detected by the conjugated antibody, generating a colorimetric signal proportional to analyte concentration. The reaction is stopped and absorbance measured at 450 nm on a standard microplate reader.
The complete protocol, from sample addition to final plate reading, requires approximately 3–5 hours. This includes two incubation periods (analyte binding and detection antibody steps), intermediate wash cycles to remove unbound material, 15–30 minutes of TMB substrate development, and final stop-solution addition before absorbance reading. Exact timing will vary with experience level and the number of samples processed in parallel.
Required equipment: (1) a microplate spectrophotometer capable of reading absorbance at 450 nm (reference wavelength 540–570 nm recommended for background correction); (2) precision single-channel or multichannel pipettes; (3) a plate washer or multichannel aspirator; (4) a microcentrifuge for sample clarification; and (5) a 37°C incubator or stable room-temperature environment. No fluorescence or luminescence reader is required — standard colorimetric plate readers are fully compatible with this kit.
This ELISA kit is formally validated for Human. Cross-reactivity with species not listed in the specification has not been independently characterized. Variability in protein sequence homology across species means that performance in unlisted species cannot be guaranteed without additional validation. For cross-species detection requirements or non-standard sample matrices, please contact BioHippo support or refer to the manufacturer's technical team for guidance.
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