NCIt synonyms : TMSB4X; Fx; Prothymosin Beta-4; T Beta-4;
NCIt definition : Thymosin beta-4 (44 aa, 5 kDa) is encoded by the human TMSB4X gene. This protein
plays a role in the downregulation of actin polymerization.;
NCIt note : Thymosin beta-4 is cleaved to release a biologically active tetrapeptide consisting
of amino acids 2-5, which is called hematopoietic system regulatory peptide and the
synthetic acetylated peptide is called seraspenide. Seraspenide causes G1 phase arrest
for hematopoietic stem cells.; Thymosin beta-4 and thymosin beta-4, Y-chromosomal are identical except for amino
acid positions 6, 30 and 39.;