| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | SERPINE2; GDN; PI7; PN1; PNI; OTTHUMP00000203766; glial-derived neurite promoting factor; glial-derived nexin 1; plasminogen activator inhibitor type 1; member 2; protease inhibitor 7 (protease nexin I); serine (o |
| 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 Glia-derived nexin (SERPINE2) ELISA Kit has high sensitivity and excellent specificity for detection of Human SERPINE2. No significant cross-reactivity or interference between Human SERPINE2 and analogues was observed.
Background
Protease nexin I is a 44-kD thrombin and urokinase inhibitor released by human foreskin fibroblasts. PN-I shares several features with antithrombin III , an abundant plasma thrombin inhibitor. Both PN-I and AT-III have high affinities for heparin, and heparin accelerates their rate of thrombin inhibition. In addition, the published sequence of 28 amino acids at the N-terminus of PN-I is identical to the N-terminal amino acid sequence of a glial-derived neurite promoting factor. Two forms, designated alpha and beta, were identified. These differed only by the insertion of 3 nucleotides into the coding sequence, and apparently arose by utilization of an alternative splice acceptor site in the PN1 gene. In the resulting proteins, alpha-PN-I contains an arginine residue at position 310, whereas beta-PN-I contains threonine-lysine residues.
This Glia-derived nexin (SERPINE2) 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 Glia-derived nexin (SERPINE2) 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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