SGD Paper Help



Eckert CA, et al.  (2007) The enhancement of pericentromeric cohesin association by conserved kinetochore components promotes high-fidelity chromosome segregation and is sensitive to microtubule-based tension. Genes Dev 21(3):278-91

Abstract: Sister chromatid cohesion, conferred by the evolutionarily conserved cohesin complex, is essential for proper chromosome segregation. Cohesin binds to discrete sites along chromosome arms, and is especially enriched surrounding centromeres, but past studies have not clearly defined the roles of arm and pericentromeric cohesion in chromosome segregation. To address this issue, we developed a technique that specifically reduced pericentromeric cohesin association on a single chromosome without affecting arm cohesin binding. Under these conditions, we observed more extensive stretching of centromeric chromatin and elevated frequencies of chromosome loss, suggesting that pericentromeric cohesin enrichment is essential for high-fidelity chromosome transmission. The magnitude of pericentromeric cohesin association was negatively correlated with tension between sister kinetochores, with the highest levels of association in cells lacking kinetochore-microtubule attachments. Pericentromeric cohesin recruitment required evolutionarily conserved components of the inner and central kinetochore. Together, these observations suggest that pericentromeric cohesin levels reflect the balance of opposing forces: the kinetochore-mediated enhancement of cohesin binding and the disruption of binding by mechanical tension at kinetochores. The involvement of conserved kinetochore components suggests that this pathway for pericentromeric cohesin enrichment may have been retained in higher eukaryotes to promote chromosome biorientation and accurate sister chromatid segregation.

Status: Published Type: Journal Article | Research Support, N.I.H., Extramural PubMed ID: 17242156

Topics addressed in this paper

Number of different genes curated to this paper: 17

Jump to Summary Chart for:

  • To find other papers on a gene and topic, click on the colored ball in the appropriate box.
  • displays other papers with information about that topic for that gene.
  • displays other papers in SGD that are associated with that topic.
    The topic is addressed in these papers but does not describe a specific gene or chromosomal feature.
  • To go to the Locus page for a gene, click on the gene name.
Topics Genes linked to topics (#1 - 10 )
BUB1 CDC16 CDC6 CEN3 CSE4 CTF19 DAD1 DAM1 IPL1 MAD2
Additional Literature blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Genetic Interactions blue ball blue ball blue ball blue ball
Mutants/Phenotypes blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball
Strains/Constructs blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball blue ball

Topics Genes linked to topics (#11 - 17 )
MCD1 MIF2 MPS1 MTW1 SLK19 STU2 TID3
Additional Literature blue ball blue ball blue ball blue ball
Alias blue ball
Cell Cycle Phase Involved blue ball
Function/Process blue ball
Genetic Interactions blue ball blue ball
Mutants/Phenotypes blue ball blue ball blue ball blue ball blue ball blue ball
Primary Literature blue ball blue ball blue ball
Protein-Nucleic Acid Interactions blue ball
Strains/Constructs blue ball blue ball blue ball blue ball blue ball blue ball blue ball

Author Searches

To find contact information or other publications by the authors of this paper, follow these three steps:
  1. (1) Choose an author,
  2. (2) Choose a search parameter,
  3. (3) Click to implement