» Articles » PMID: 15592865

The Drosophila Melanogaster Condensin Subunit Cap-G Interacts with the Centromere-specific Histone H3 Variant CID

Overview
Journal Chromosoma
Specialty Molecular Biology
Date 2004 Dec 14
PMID 15592865
Citations 31
Authors
Affiliations
Soon will be listed here.
Abstract

The centromere-specific histone H3 variant CENP-A plays a crucial role in kinetochore specification and assembly. We chose a genetic approach to identify interactors of the Drosophila CENP-A homolog CID. Overexpression of cid in the proliferating eye imaginal disk results in a rough eye phenotype, which is dependent on the ability of the overexpressed protein to localize to the kinetochore. A screen for modifiers of the rough eye phenotype identified mutations in the Drosophila condensin subunit gene Cap-G as interactors. Yeast two-hybrid experiments also reveal an interaction between CID and Cap-G. While chromosome condensation in Cap-G mutant embryos appears largely unaffected, massive defects in sister chromatid segregation occur during mitosis. Taken together, our results suggest a link between the chromatin condensation machinery and kinetochore structure.

Citing Articles

Centromere structure and function: lessons from Drosophila.

Kyriacou E, Heun P Genetics. 2023; 225(4).

PMID: 37931172 PMC: 10697814. DOI: 10.1093/genetics/iyad170.


Bivalent individualization during chromosome territory formation in Drosophila spermatocytes by controlled condensin II protein activity and additional force generators.

Vernizzi L, Lehner C PLoS Genet. 2021; 17(10):e1009870.

PMID: 34669718 PMC: 8559962. DOI: 10.1371/journal.pgen.1009870.


Condensin I is required for faithful meiosis in Drosophila males.

Kleinschnitz K, Viessmann N, Jordan M, Heidmann S Chromosoma. 2020; 129(2):141-160.

PMID: 32314039 PMC: 7260282. DOI: 10.1007/s00412-020-00733-w.


Condensin I subunit Cap-G is essential for proper gene expression during the maturation of post-mitotic neurons.

Hassan A, Araguas Rodriguez P, Heidmann S, Walmsley E, Aughey G, Southall T Elife. 2020; 9.

PMID: 32255428 PMC: 7170655. DOI: 10.7554/eLife.55159.


Multiple Functions of the Essential Gene in Early Development.

Liu B, Sung H, Grosshans J G3 (Bethesda). 2019; 9(11):3583-3593.

PMID: 31484673 PMC: 6829155. DOI: 10.1534/g3.119.400662.


References
1.
Henikoff S, Ahmad K, Platero J, van Steensel B . Heterochromatic deposition of centromeric histone H3-like proteins. Proc Natl Acad Sci U S A. 2000; 97(2):716-21. PMC: 15396. DOI: 10.1073/pnas.97.2.716. View

2.
Sullivan B, Blower M, Karpen G . Determining centromere identity: cyclical stories and forking paths. Nat Rev Genet. 2001; 2(8):584-96. DOI: 10.1038/35084512. View

3.
Jager H, Herzig A, Lehner C, Heidmann S . Drosophila separase is required for sister chromatid separation and binds to PIM and THR. Genes Dev. 2001; 15(19):2572-84. PMC: 312799. DOI: 10.1101/gad.207301. View

4.
Bhat M, Philp A, Glover D, Bellen H . Chromatid segregation at anaphase requires the barren product, a novel chromosome-associated protein that interacts with Topoisomerase II. Cell. 1996; 87(6):1103-14. DOI: 10.1016/s0092-8674(00)81804-8. View

5.
Brand A, Perrimon N . Targeted gene expression as a means of altering cell fates and generating dominant phenotypes. Development. 1993; 118(2):401-15. DOI: 10.1242/dev.118.2.401. View