MeSH Browser

MeSH Heading: Thymosin beta(4)
Tree Number(s): D05.750.078.730.678; D06.472.910.850.001; D12.644.548.869.001; D12.776.220.525.678; D12.776.922.001
Unique ID: D000099201
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D000099201
Scope Note: A thymosin that functions to regulate organization of the CYTOSKELETON. It binds to and sequesters ACTIN monomers to inhibit POLYMERIZATION and also inhibits CELL DIFFERENTIATION of some STEM CELLS.
Entry Term(s): 3,11,25,31,38-pentakis(de-N6-acetyl)-1,22,30,33-tetrakis(de-O3-phosphono)thymosin beta 4 (human); Fx Peptide; Thymosin beta-4; Thymosin beta4; Timbetasin; Tyb-4
Registry Numbers: 0; 2D5MRE3SSY
Related Numbers: 2D5MRE3SSY
Public MeSH Note: 2026; THYMOSIN BETA(4) was indexed under THYMOSIN 1982-2025
History Note: 2026 (1982)
Date Introduced: 2026/01/01
Last Updated: 2026/01/01

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

agonists (AG)

analogs & derivatives (AA)

analysis (AN)

antagonists & inhibitors (AI)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemical synthesis (CS)

chemistry (CH)

classification (CL)

deficiency (DF)

economics (EC)

genetics (GE)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacokinetics (PK)

pharmacology (PD)

physiology (PH)

poisoning (PO)

radiation effects (RE)

standards (ST)

supply & distribution (SD)

therapeutic use (TU)

toxicity (TO)

urine (UR)

Concept UI: M000768934
Registry Numbers: 0
Related Numbers: 2D5MRE3SSY
Scope Note: A thymosin that functions to regulate organization of the CYTOSKELETON. It binds to and sequesters ACTIN monomers to inhibit POLYMERIZATION and also inhibits CELL DIFFERENTIATION of some STEM CELLS.
Terms: Thymosin beta(4) Preferred Term
Term UI T001148051
Date04/10/2025
LexicalTag NON
ThesaurusID NLM (1982); Fx Peptide
Term UI T001148052
Date04/10/2025
LexicalTag NON
ThesaurusID NLM (1982); Thymosin beta-4
Term UI T001148053
Date04/10/2025
LexicalTag NON
ThesaurusID FDA SRS (2017); Thymosin beta4
Term UI T001148054
Date04/10/2025
LexicalTag NON
ThesaurusID NLM (1982); Tyb-4
Term UI T819849
Date03/23/2012
LexicalTag ABB
ThesaurusID NLM (2012)

Thymosin beta(4) MeSH Descriptor Data 2026