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The research-grade version, TB 500 Thymosin Beta-4 Fragment 5mg, isolates the active tetrapeptide sequence Ac-SDKP (N-acetyl-seryl-aspartyl-lysyl-proline), which is believed to be responsible for much of T4s biological activity
10.1038/s41598-025-14896-y 80 GuermaziA.HunterD
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