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Healing & Recovery

ABP-7

Also known as Actin Binding Peptide-7, TB-500 Fragment, Ac-LKKTETQ, Thymosin Beta-4 (17-23) fragment

An N-acetylated heptapeptide fragment of Thymosin Beta-4 (the LKKTETQ actin-binding domain) sold for research into actin regulation and wound repair.

Molecular weight889.5 g/mol
Half-lifeNot formally characterized; small peptides of this size are generally cleared within minutes to ~1 hour.
CategoryHealing & Recovery

Typical use cases

✓ Actin-dynamics research✓ Wound-healing models✓ Cell-migration studies✓ Tissue-repair investigation

Dosing guidelines

StartingNo established research dosing protocol; vendor-cited experimental ranges are roughly 250–500 mcg.
MaintenanceNot established (illustrative experimental use ~250–500 mcg once daily).
Max (studied)Undefined — no toxicology or human dose-ranging data; treat any figure as speculative.

Titration

Typically flat-dosed in the limited literature; no validated titration scheme.

Reconstitution

10 mg vial: ~2 mL bacteriostatic water yields ~5 mg/mL.

Injection sites

Subcutaneous in research handling (e.g. abdomen), by analogy to TB-500/peptide practice.

Storage & handling

Lyophilized: stable months cool/dark, longer frozen. Reconstituted: refrigerate (2–8 °C).

Side effects

  • Unknown human safety profile (no clinical data) Moderate · Rare
  • Injection-site reaction (by analogy to peptide injectables) Mild · Uncommon

Research summary

ABP-7 corresponds to the acetylated 17–23 (LKKTETQ) actin-binding sequence of Thymosin Beta-4, and is hypothesized to sequester G-actin and limit its polymerization into F-actin, thereby influencing cell migration and tissue-repair pathways. Note that the available description comes largely from vendor material: there is no peer-reviewed literature on the isolated 'ABP-7' entity itself, and the mechanism/benefit claims are extrapolated from the parent Thymosin Beta-4 protein. There are no human pharmacokinetic or safety data, and it is sold strictly as a research chemical. Educational only — not medical advice.

Key references

  • Goldstein, Hannappel & Kleinman, Trends Mol. Med. (2005) — Thymosin β4 actin-sequestering protein and tissue repair
  • Sosne et al., Exp. Eye Res. (2010) — Thymosin β4 active fragment(s) and corneal wound healing

Related compounds

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Educational reference only — not medical advice. Dosing figures are commonly-cited ranges, not prescriptions. Consult a qualified clinician.

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