| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | PRM2; CT94.2; FLJ27447; Sperm protamine P2; cancer/testis antigen family 94; member 2 |
| 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 Protamine-2 (PRM2) ELISA Kit has high sensitivity and excellent specificity for detection of Human PRM2. No significant cross-reactivity or interference between Human PRM2 and analogues was observed.
Background
Presumably PRM2 is located on human chromosome 16, close to PRM1: in the mouse the corresponding 2 loci are closely linked, and in the Chinese hamster, probes specific for the 2 protamines hybridize to the same restriction fragments after digestion of hamster genomic DNA with any of 5 different restriction endonucleases (Reeves et al., 1987, 1989). The tight linkage may be of functional significance since PRM1 and PRM2 are among the limited number of genes known to be expressed postmeiotically in haploid cells.
In mouse, only one P2 protamine has been detected, whereas in man, the P2 protamine family is represented by 3 protamines, HP2, HP3 and HP4, whose amino acid sequences are identical except at their amino terminal ends .
This Protamine-2 (PRM2) 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 Protamine-2 (PRM2) 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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