Biology:DCTN3

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Dynactin subunit 3 is a protein that in humans is encoded by the DCTN3 gene.[1][2][3]

This gene encodes the smallest subunit of dynactin, a macromolecular complex consisting of 10 subunits ranging in size from 22 to 150 kD. Dynactin binds to both microtubules and cytoplasmic dynein. It is involved in a diverse array of cellular functions, including ER-to-Golgi transport, the centripetal movement of lysosomes and endosomes, spindle formation, cytokinesis, chromosome movement, nuclear positioning, and axonogenesis. This subunit, like most other dynactin subunits, exists only as a part of the dynactin complex. It is primarily an alpha-helical protein with very little coiled coil, and binds directly to the largest subunit (p150) of dynactin. Alternative splicing of this gene generates 2 transcript variants.[3]

References

  1. "Characterization of the p22 subunit of dynactin reveals the localization of cytoplasmic dynein and dynactin to the midbody of dividing cells". J Cell Biol 142 (4): 1023–34. Sep 1998. doi:10.1083/jcb.142.4.1023. PMID 9722614. 
  2. "Assignment of p22 dynactin light chain (DCTN3) to human chromosome region 9p13 by radiation hybrid mapping". Cytogenet Cell Genet 92 (1–2): 166. Apr 2001. doi:10.1159/000056892. PMID 11306820. 
  3. 3.0 3.1 "Entrez Gene: DCTN3 dynactin 3 (p22)". https://www.ncbi.nlm.nih.gov/gene?Db=gene&Cmd=ShowDetailView&TermToSearch=11258. 

Further reading