TMSB4X
TMSB4X thymosin beta 4 — the molecular target that 1 compounds in the wiki act on.
In one line: The gene behind TB-500, a peptide that helps repair cells reach a wound.
TMSB4X makes thymosin beta-4, a protein that helps repair cells physically migrate to sites of damage, grow new blood vessels, and calm inflammation. The peptide TB-500 is a fragment of it, used (usually alongside BPC-157) to try to speed recovery.
Like most healing peptides, the animal data is interesting but human evidence is essentially anecdotal — a "know the risks and decide for yourself" compound.