Peptides / Immune and antimicrobial
Natural fragment · 4 amino acids · 500.6 Da
Tuftsin
Not approvedMay be banned in sport
PepBank shows no results on Tuftsin from studies in people, animals, the lab or computer predictions. Data as of 2026-10-30.
Also known as TKPR, Taftsin, Thr-Lys-Pro-Arg
4 amino acids, from first to lastTKPR
Evidence level: No study results yetPepBank has no study results for Tuftsin yet.
Results in people
0
0% of 0 results
Results in animals
0
0% of 0 results
Results in lab cells
0
0% of 0 results
From computer models
0
0% of 0 results
Overview
Tuftsin at a glance
| What it is | Natural fragment, 4 amino acids |
|---|---|
| Approval | Not approved for any use |
| In sport | Not named on the List; S0 may still apply (no approval anywhere) |
| Studies | No study results for Tuftsin yet |
| Clinical trials | None registered |
The science
What is Tuftsin?
Tetrapeptide Thr-Lys-Pro-Arg from the IgG heavy chain constant region. Stimulates phagocytes and binds neuropilin-1 in laboratory studies. Reference record.
4
Amino acids in one chain
Tuftsin structure and chemistry
The key facts about the molecule. Long codes are in the closed section below.
Sequence, 4 amino acidsFrom the first amino acid to the last
T1+KP+R
Darker means more water-repelling+ and − show charge in the body
Structure
Tuftsin is a natural fragment of 4 amino acids, with no ring, no changed amino acids.
Formula
C21H40N8O6
Molecular weight
500.6 g/mol
CAS number
9063-57-4
Target
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