Biology:NDC80

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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

Kinetochore protein NDC80 homolog is a protein that in humans is encoded by the NDC80 gene.[1][2][3]

Function

Ndc80 is one of the proteins of outer kinetochore. It forms a heterotetramer with proteins NUF2, SPC25,[4] and SPC24. This protein complex has microtubule-binding domains.[5]

HEC is one of several proteins involved in spindle checkpoint signaling. This surveillance mechanism assures correct segregation of chromosomes during cell division by detecting unaligned chromosomes and causing prometaphase arrest until the proper bipolar attachment of chromosomes is achieved.[3]

Interactions

NDC80 has been shown to interact with MIS12,[6][7] NEK2[8][9] and PSMC2.[9]

References

  1. "HEC, a novel nuclear protein rich in leucine heptad repeats specifically involved in mitosis". Molecular and Cellular Biology 17 (10): 6049–56. October 1997. doi:10.1128/mcb.17.10.6049. PMID 9315664. 
  2. "Role of Hec1 in spindle checkpoint signaling and kinetochore recruitment of Mad1/Mad2". Science 297 (5590): 2267–70. September 2002. doi:10.1126/science.1075596. PMID 12351790. Bibcode2002Sci...297.2267M. 
  3. 3.0 3.1 "Entrez Gene: NDC80 NDC80 homolog, kinetochore complex component (S. cerevisiae)". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10403. 
  4. Human kinetochore protein Spc25 Q9HBM1
  5. "Trypanosome outer kinetochore proteins suggest conservation of chromosome segregation machinery across eukaryotes". The Journal of Cell Biology 216 (2): 379–391. February 2017. doi:10.1083/jcb.201608043. PMID 28034897. 
  6. "A conserved protein network controls assembly of the outer kinetochore and its ability to sustain tension". Genes & Development 18 (18): 2255–68. September 2004. doi:10.1101/gad.1234104. PMID 15371340. 
  7. "A conserved Mis12 centromere complex is linked to heterochromatic HP1 and outer kinetochore protein Zwint-1". Nature Cell Biology 6 (11): 1135–41. November 2004. doi:10.1038/ncb1187. PMID 15502821. 
  8. "Phosphorylation of the mitotic regulator protein Hec1 by Nek2 kinase is essential for faithful chromosome segregation". The Journal of Biological Chemistry 277 (51): 49408–16. December 2002. doi:10.1074/jbc.M207069200. PMID 12386167. 
  9. 9.0 9.1 "HEC binds to the seventh regulatory subunit of the 26 S proteasome and modulates the proteolysis of mitotic cyclins". The Journal of Biological Chemistry 272 (38): 24081–7. September 1997. doi:10.1074/jbc.272.38.24081. PMID 9295362. 

Further reading