- ≥99% by HPLC
- Lot-matched certificate of analysis
- Ships next business day, tracked
Prostamax
Lys-Glu-Asp-Pro (KEDP) tetrapeptide used in prostate-tissue research models
- FormLyophilized powder in a sealed glass vial
- Mol. weight487.51 g/mol
- Research areasProstate tissue models, epithelial cell culture, gene expression, tissue ageing
Overview
Prostamax is a synthetic tetrapeptide with the sequence L-lysyl-L-glutamyl-L-aspartyl-L-proline (Lys-Glu-Asp-Pro, or KEDP). It belongs to the Khavinson short-peptide bioregulator series and is the sequence associated with prostate tissue preparations. The name is also used commercially for prostate peptide complexes derived from tissue extracts; the material supplied here is the defined synthetic tetrapeptide, characterised by sequence, formula, and molecular weight rather than by extract composition.
Reported laboratory work centres on prostate tissue in rodent models, epithelial cell cultures, and side-by-side comparisons with other members of the peptide family. Our Prostamax is supplied as a 20 mg lyophilized vial, synthesised by SPPS and HPLC purified to a ≥99% specification, with a lot-matched certificate of analysis available. It is sold for laboratory research only.
Specifications
Identity
- Molecular formula
- C20H33N5O9
- Molecular weight
- 487.51 g/mol
- Amino acid sequence
- Lys-Glu-Asp-Pro (KEDP), linear tetrapeptide
- Peptide class
- Khavinson short-peptide bioregulator (tetrapeptide)
Supply & purity
- Form
- Lyophilized powder in a sealed glass vial
- Purity
- ≥99% by HPLC; lot-matched COA available
- Available sizes
- 20 mg
- Solubility
- Bacteriostatic or sterile water; readily soluble in aqueous buffers
Handling & storage
- Storage (lyophilized)
- −20 °C, sealed and protected from light and moisture
- Storage (reconstituted)
- 2–8 °C, protected from light; use within the study window
Additional detail
- Tissue association
- Prostate peptide preparations
- Research areas
- Prostate tissue models, epithelial cell culture, gene expression, tissue ageing
- Structural note
- C-terminal proline restricts backbone rotation relative to KEDG and KEDA
Working out the concentration
A lyophilized vial carries a mass on the label and no concentration anywhere, so the first calculation of any protocol is the reconstitution one. The peptide concentration calculator converts vial mass plus diluent volume into mg/mL, and back into the draw volume for a given mass.
For work specified in µM or nM rather than mg/mL, feed 487.51 g/mol and your volume into the peptide molarity calculator.
Certificate of analysis
Every lot of Prostamax is released against a certificate of analysis: the batch-specific laboratory data for that lot, not a generic document for the compound. The lot number on the certificate matches the lot number printed on the label you receive — the vial label itself, where the product is vialled — so the record and the material it describes can always be reconciled.
Purity: ≥99% by HPLC — the specification for this listing. The figure for the lot you receive is the one reported on that lot’s certificate.
No lot certificate is on display on this page at the moment. That is a publishing state and not a testing one: lots are released and documented as described above whether or not the document is posted here, and we will send what exists for the lot in stock, or for a lot already on your bench, by its number.
Certificates are available on request before you order as well as after, with no account and no charge. Request the certificate for this listing, read the testing and documentation policy in full, or see how to read a peptide COA.
Questions about Prostamax
What is Prostamax?
Prostamax is the synthetic tetrapeptide Lys-Glu-Asp-Pro (KEDP) from the Khavinson short-peptide bioregulator series, associated in that literature with prostate tissue. It is supplied as a lyophilized research chemical for laboratory work only.
Is this a peptide complex or a single peptide?
This listing is the defined synthetic tetrapeptide KEDP, characterised by sequence, formula, and molecular weight. Some suppliers use the Prostamax name for prostate peptide complexes made from tissue extracts, which are a different kind of material entirely.
How is purity verified?
Each lot is analysed by HPLC against a ≥99% purity specification, and a lot-matched certificate of analysis is available on request. The COA records the batch identifier, purity result, identity confirmation, and physical appearance.
Why does proline matter in this sequence?
Proline's side chain ties back to the backbone nitrogen, restricting rotation and fixing a kink in the chain. In a four-residue peptide that limits the shapes the molecule can adopt, which makes KEDP a useful conformational comparator against KEDG and KEDA.
How should it be stored?
Keep the unopened lyophilized vial at −20 °C, away from light and moisture. Once reconstituted, hold the solution at 2–8 °C for the planned study window, or aliquot and freeze it to avoid repeated freeze-thaw cycles.
