Actin, alpha skeletal muscle

Last updated
ACTA1
PBB Protein ACTA1 image.jpg
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases ACTA1 , ACTA, ASMA, CFTD, CFTD1, CFTDM, MPFD, NEM1, NEM2, NEM3, Actin, alpha 1, SHPM, actin, alpha 1, skeletal muscle, actin alpha 1, skeletal muscle
External IDs OMIM: 102610; MGI: 87902; HomoloGene: 121702; GeneCards: ACTA1; OMA:ACTA1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001100

NM_001272041
NM_009606

RefSeq (protein)

NP_001091

NP_001258970
NP_033736

Location (UCSC) Chr 1: 229.43 – 229.43 Mb Chr 8: 124.62 – 124.62 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Actin, alpha skeletal muscle is a protein that in humans is encoded by the ACTA1 gene. [5] [6]

Contents

Actin alpha 1 which is expressed in skeletal muscle is one of six different actin isoforms which have been identified. Actins are highly conserved proteins that are involved in cell motility, structure and integrity. Alpha actins are a major constituent of the contractile apparatus. [7]

Skeletal actin gene expression

Skeletal alpha actin expression is induced by stimuli and conditions known to cause muscle formation. [8] Such conditions result in fusion of committed cells (satellite cells) into myotubes, to form muscle fibers. Skeletal actin itself, when expressed, causes expression of several other "myogenic genes", which are essential to muscle formation. [9] One key transcription factor that activates skeletal actin gene expression is Serum Response Factor ("SRF"), a protein that binds to specific sites on the promoter DNA of the actin gene. [10] SRF may bring a number of other proteins to the promoter of skeletal actin, such as androgen receptor, and thereby contribute to induction of skeletal actin gene expression by androgenic (often termed "anabolic") steroids. [11]

Interactions

Actin, alpha 1 has been shown to interact with TMSB4X, [12] [13] MIB2 [14] and PRKCE. [15]

Clinical significance

Mutations in the ACTA1 gene are known to cause the following conditions: [16]

See also

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000143632 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000031972 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Mogensen J, Kruse TA, Børglum AD (March 1999). "Assignment of the human skeletal muscle [FC12]a-actin gene (ACTA1) to chromosome 1q42.13→q42.2 by radiation hybrid mapping". Cytogenetics and Cell Genetics. 83 (3–4): 224–5. doi:10.1159/000015184. PMID   10072583. S2CID   84202330.
  6. Gunning P, Ponte P, Okayama H, Engel J, Blau H, Kedes L (May 1983). "Isolation and characterization of full-length cDNA clones for human alpha-, beta-, and gamma-actin mRNAs: skeletal but not cytoplasmic actins have an amino-terminal cysteine that is subsequently removed". Molecular and Cellular Biology. 3 (5): 787–95. doi:10.1128/mcb.3.5.787. PMC   368601 . PMID   6865942.
  7. "Entrez Gene: ACTA1 actin, alpha 1, skeletal muscle".
  8. Bandman E (December 1992). "Contractile protein isoforms in muscle development". Developmental Biology. 154 (2): 273–83. doi:10.1016/0012-1606(92)90067-Q. PMID   1358730.
  9. Gunning PW, Ferguson V, Brennan KJ, Hardeman EC (February 2001). "Alpha-skeletal actin induces a subset of muscle genes independently of muscle differentiation and withdrawal from the cell cycle". Journal of Cell Science. 114 (Pt 3): 513–24. doi:10.1242/jcs.114.3.513. PMID   11171321.
  10. Belaguli NS, Zhou W, Trinh TH, Majesky MW, Schwartz RJ (July 1999). "Dominant negative murine serum response factor: alternative splicing within the activation domain inhibits transactivation of serum response factor binding targets". Molecular and Cellular Biology. 19 (7): 4582–91. doi:10.1128/mcb.19.7.4582. PMC   84256 . PMID   10373507.
  11. Vlahopoulos S, Zimmer WE, Jenster G, Belaguli NS, Balk SP, Brinkmann AO, Lanz RB, Zoumpourlis VC, Schwartz RJ (March 2005). "Recruitment of the androgen receptor via serum response factor facilitates expression of a myogenic gene". The Journal of Biological Chemistry. 280 (9): 7786–92. doi: 10.1074/jbc.M413992200 . PMID   15623502.
  12. Ballweber E, Hannappel E, Huff T, Stephan H, Haener M, Taschner N, Stoffler D, Aebi U, Mannherz HG (January 2002). "Polymerisation of chemically cross-linked actin:thymosin beta(4) complex to filamentous actin: alteration in helical parameters and visualisation of thymosin beta(4) binding on F-actin". Journal of Molecular Biology. 315 (4): 613–25. doi:10.1006/jmbi.2001.5281. PMID   11812134.
  13. Safer D, Sosnick TR, Elzinga M (May 1997). "Thymosin beta 4 binds actin in an extended conformation and contacts both the barbed and pointed ends". Biochemistry. 36 (19): 5806–16. doi:10.1021/bi970185v. PMID   9153421.
  14. Takeuchi T, Heng HH, Ye CJ, Liang SB, Iwata J, Sonobe H, Ohtsuki Y (October 2003). "Down-regulation of a novel actin-binding molecule, skeletrophin, in malignant melanoma". The American Journal of Pathology. 163 (4): 1395–404. doi:10.1016/S0002-9440(10)63497-9. PMC   1868282 . PMID   14507647.
  15. England K, Ashford D, Kidd D, Rumsby M (June 2002). "PKC epsilon is associated with myosin IIA and actin in fibroblasts". Cellular Signalling. 14 (6): 529–36. doi:10.1016/S0898-6568(01)00277-7. PMID   11897493.
  16. "UniProt". www.uniprot.org. Retrieved 2023-09-09.

Further reading