Thymosin beta-4, Y-chromosomal

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Thymosin beta 4, Y-linked
Symbols TMSB4Y ; TB4Y
External IDs OMIM400017 GeneCards: TMSB4Y Gene
RNA expression pattern
PBB GE TMSB4Y 206769 at tn.png
More reference expression data
Species Human Mouse
Entrez 9087 n/a
Ensembl ENSG00000154620 n/a
UniProt O14604 n/a
RefSeq (mRNA) NM_004202 n/a
RefSeq (protein) NP_004193 n/a
Location (UCSC) Chr Y:
15.82 – 15.82 Mb
PubMed search [1] n/a

Thymosin beta-4, Y-chromosomal is a protein that in humans is encoded by the TMSB4Y gene.[1][2]

The protein consists (in humans) of 44 amino acids (msdkpgmaei ekfdksklkk tetqeknpls sketieqerq ages) MolWt 4881.[3]


This gene lies within the male specific region of chromosome Y. Its homolog on chromosome X (thymosin beta-4) escapes X inactivation and encodes an actin sequestering protein.[2]


  1. ^ Lahn BT, Page DC (Nov 1997). "Functional coherence of the human Y chromosome". Science 278 (5338): 675–80. doi:10.1126/science.278.5338.675. PMID 9381176. 
  2. ^ a b "Entrez Gene: TMSB4Y thymosin, beta 4, Y-linked". 
  3. ^

Further reading[edit]