Katsumi Kitagawa

The RAR1 interactor SGT1, an essential component of R gene-triggered disease resistance.

In vivo site-directed mutagenesis of yeast plasmids using a three-fragment homologous recombination system.

Schizosaccharomyces pombe Git7p, a member of the Saccharomyces cerevisiae Sgtlp family, is required for glucose and cyclic AMP signaling, cell wall integrity, and septation.

Sgt1p contributes to cyclic AMP pathway activity and physically interacts with the adenylyl cyclase Cyr1p/Cdc35p in budding yeast.

Calcium-regulated interaction of Sgt1 with S100A6 (calcyclin) and other S100 proteins.

Requirement of Skp1-Bub1 interaction for kinetochore-mediated activation of the spindle checkpoint.

Identification of a novel splice variant: human SGT1B (SUGT1B).

Sgt1 is required for human kinetochore assembly.

Sgt1 associates with Hsp90: an initial step of assembly of the core kinetochore complex.

The novel F-box protein Mfb1p regulates mitochondrial connectivity and exhibits asymmetric localization in yeast.

SCF E3-mediated autoubiquitination negatively regulates activity of Cdc34 E2 but plays a nonessential role in the catalytic cycle in vitro and in vivo.

BUB1 mediation of caspase-independent mitotic death determines cell fate.

Ybp2 associates with the central kinetochore of Saccharomyces cerevisiae and mediates proper mitotic progression.

Caspase-independent mitotic death (CIMD).

Sgt1 dimerization is required for yeast kinetochore assembly.

Sgt1 dimerization is negatively regulated by protein kinase CK2-mediated phosphorylation at Ser361.

Dishevelled, a Wnt signalling component, is involved in mitotic progression in cooperation with Plk1.

Bub1-mediated adaptation of the spindle checkpoint.

Too early to say, "no targeting of mitosis!".

Endogenous transcription at the centromere facilitates centromere activity in budding yeast.

Aurora-B mediated ATM serine 1403 phosphorylation is required for mitotic ATM activation and the spindle checkpoint.

Role of transcription at centromeres in budding yeast.

Structure-specific endonucleases xpf and mus81 play overlapping but essential roles in DNA repair by homologous recombination.

Synthetic genetic array screen identifies PP2A as a therapeutic target in Mad2-overexpressing tumors.

Degradation of centromeric histone H3 variant Cse4 requires the Fpr3 peptidyl-prolyl Cis-Trans isomerase.

CENP-A K124 Ubiquitylation Is Required for CENP-A Deposition at the Centromere.

CENP-A Ubiquitylation Is Required for CENP-A Deposition at the Centromere.

SGT1-HSP90 complex is required for CENP-A deposition at centromeres.

CENP-A Ubiquitylation Contributes to Maintaining the Chromosomal Location of the Centromere.

CENP-A Ubiquitylation Is Indispensable to Cell Viability.