| 2012 |
CENP-T-W and CENP-S-X complexes coassemble into a stable CENP-T-W-S-X heterotetramer with structural similarity to canonical histones within a nucleosome. The heterotetramer binds and supercoils DNA; mutants compromising heterotetramerization or DNA-protein contacts reduce DNA binding and supercoiling in vitro and compromise kinetochore assembly in vivo. |
High-resolution structural analysis (crystal structure), in vitro DNA binding and supercoiling assays, site-directed mutagenesis, in vivo kinetochore assembly assays |
Cell |
High |
22304917
|
| 2013 |
The N-terminal region of vertebrate CENP-T directly interacts with the RWD domain of the Spc24/25 portion of the Ndc80 complex. CDK phosphorylation of CENP-T strengthens a cryptic hydrophobic interaction with Spc25 without direct recognition of the phosphorylated residue. CENP-T and the Mis12 complex bind to the Ndc80 complex via mutually exclusive interactions, supporting two distinct pathways for Ndc80 recruitment to kinetochores. |
High-resolution structural analysis, biochemical binding assays, phosphorylation assays, mutagenesis |
The EMBO journal |
High |
23334297
|
| 2012 |
The budding yeast CENP-T ortholog Cnn1 acts as a direct centromere receptor of the Ndc80 complex. The amino terminus of Cnn1 contains a conserved peptide motif that mediates stoichiometric binding to the Spc24-25 domain of Ndc80. Artificial tethering of Ndc80 through Cnn1 allows mini-chromosome segregation in the absence of a natural centromere. |
Biochemical binding assays, in vivo chromosome segregation assay with artificial tethering |
Nature cell biology |
High |
22561346
|
| 2015 |
CENP-T and CENP-C act in parallel to recruit the KMN network to kinetochores, but via distinct organizational logic: CENP-T directly interacts with Ndc80, which then promotes KNL1/Mis12 complex recruitment through a separate CENP-T region, inverting the hierarchy relative to the CENP-C pathway. CDK regulates KMN recruitment to CENP-T, while Aurora B promotes KMN recruitment to CENP-C. |
Ectopic targeting of CENP-C and CENP-T to an ectopic chromosomal locus in human cells; functional epistasis analysis of KMN recruitment |
Current biology : CB |
High |
25660545
|
| 2016 |
CENP-T is phosphorylated by CDK1:Cyclin B at three distinct sites, enabling binding of one MIS12:NDC80 and two NDC80 complexes. CENP-C and CENP-T together recruit two MIS12 and up to four NDC80 complexes in parallel. Binding of CENP-C and CENP-T to MIS12 is competitive. Electron microscopy of reconstituted complexes supported this stoichiometry model. |
Biochemical reconstitution, in vitro CDK1:Cyclin B phosphorylation assays, electron microscopy visualization of reconstituted complexes, mutagenesis |
eLife |
High |
28012276
|
| 2013 |
The CENP-T-W-S-X complex binds preferentially to ~100 bp of linker DNA rather than nucleosome-bound DNA, primarily as a (CENP-T-W-S-X)2 structure, and induces positive DNA supercoils (opposite to canonical nucleosomes). The DNA-binding regions in CENP-T or CENP-W (but not CENP-S or CENP-X) are required for positive supercoiling and kinetochore targeting of the complex. |
In vitro DNA binding assays, supercoiling assays, mutagenesis, in vivo kinetochore targeting assays |
Nucleic acids research |
High |
24234442
|
| 2016 |
The histone chaperone FACT (subunits Spt16 and SSRP1) interacts with CENP-T/W; the C-terminal region of Spt16 binds specifically to the histone fold region of CENP-T/W. Depletion of Spt16 impairs CENP-T and CENP-W deposition at endogenous centromeres, and site-directed targeting of Spt16 alone is sufficient to drive local de novo CENP-T accumulation. CENP-T deposition at centromeres is uncoupled from DNA synthesis. |
Proteomic screen, Co-IP, FRAP, siRNA depletion, site-directed targeting assay |
Genes & development |
High |
27284163
|
| 2013 |
CSN5/JAB1 directly interacts with both CENP-T and CENP-W (identified by yeast two-hybrid and Co-IP). Ectopically expressed CSN5 promotes ubiquitin- and proteasome-dependent degradation of CENP-T·CENP-W. Formation of the CENP-T·CENP-W complex enhances stability of both proteins, and dysregulation of CSN5 impairs kinetochore recruitment of CENP-T·CENP-W during prophase. |
Yeast two-hybrid screening, Co-immunoprecipitation, proteasome inhibitor assays, ubiquitination assays, immunofluorescence |
The Journal of biological chemistry |
Medium |
23926101
|
| 2008 |
CENP-T directly associates with CENP-A and CENP-B at centromeres as shown by FRET in living cells. CENP-T exchange into centromeres is restricted to S-phase of the cell cycle, suggesting a co-replicational loading mechanism. |
Acceptor-bleaching FRET in living human cells, FRAP |
Journal of biophotonics |
Medium |
19412974
|
| 2016 |
ChIP-seq and sequential ChIP analyses show that CENPT is centered over the CENPB box between two CENPA nucleosomes on young α-satellite dimers, and interacts with the CENPB/CENPC complex. The entire CENPA/CENPB/CENPC/CENPT complex is nuclease-protected over an α-satellite dimer unit. |
Comparative ChIP with sequencing (base-pair resolution), sequential ChIP, nuclease protection assay |
Genome research |
Medium |
27384170
|
| 2015 |
In fission yeast, alteration of the CENP-A (Cnp1) N-tail specifically reduces localization of Cnp20/CENP-T (but not CENP-C) to centromeres, and overexpression of Cnp20/CENP-T suppresses centromere inactivation defects of N-tail mutants, placing CENP-T downstream of CENP-A N-tail in the epigenetic stability pathway. |
Genetic suppressor analysis, fluorescence microscopy, epistasis (double mutant analysis) |
Current biology : CB |
Medium |
25619765
|
| 2015 |
The budding yeast Cnn1 (CENP-T ortholog) has two kinetochore localization activities: a C-terminal histone-fold domain (HFD) that associates with the centromere region, and an N-terminal Spc24/Spc25 interaction sequence (residues 25-91) that mediates linkage to Ndc80. Mps1 kinase phosphorylates Cnn1-S74 in vitro to modulate the Cnn1-Ndc80 interaction; from G1 through metaphase, Cnn1 uses both localization activities, while at anaphase onset (when Mps1 activity decreases) enrichment is mainly via the N-terminal Spc24/25 interaction. |
In vivo cell biology (localization assays), in vitro binding assays, phosphorylation assays, mutagenesis |
Genetics |
Medium |
25716979
|
| 2015 |
In Xenopus egg extracts, CENP-T centromeric recruitment occurs in late interphase (after CENP-C but before CENP-W), is dependent on CENP-C (depletion reduces CENP-T levels at centromeres), but CENP-T does not participate in CENP-A deposition. CENP-T plays a major role in kinetochore assembly; its depletion reduces Ndc80 and Mis12 recruitment. |
Xenopus egg extract cell-free system, immunodepletion, immunofluorescence, time-course analysis |
Nucleus (Austin, Tex.) |
Medium |
25569378
|
| 2018 |
CENP-T directly binds Holliday junction recognition protein (HJURP), a chaperone for CENP-A loading; the binding interface was mapped to the C terminus of CENP-T. HJURP knockout by CRISPR minimized CENP-T recruitment to centromeres. HJURP recruits CENP-T to centromeres during S/G2 phase. A HJURP-binding-deficient CENP-T mutant (CENP-T6L) failed to localize to centromeres. |
Co-IP, CRISPR knockout, immunofluorescence, mutagenesis (domain mapping and binding-deficient mutant) |
The Journal of biological chemistry |
Medium |
30459232
|
| 2018 |
In budding yeast, the CENP-T (Cnn1) pathway for Ndc80 recruitment becomes essential for viability when the Mis12 pathway is compromised by Dsn1 phosphorylation defects, demonstrating genetic epistasis and redundancy between the two Ndc80 recruitment pathways. |
De novo kinetochore assembly assay in yeast extracts, genetic epistasis analysis (double mutant), microtubule binding assay |
eLife |
Medium |
30117803
|
| 2020 |
The budding yeast Cnn1-Wip1 (CENP-T/W) heterodimer structure was determined at high resolution bound to the Ctf3 complex. Live-cell imaging experiments provided a mechanism for Ctf3c and Cnn1-Wip1 recruitment to the kinetochore, suggesting feedback regulation of Ctf19c assembly. |
High-resolution crystal/cryo structure, live-cell imaging |
Current biology : CB |
Medium |
32679099
|
| 2020 |
In Lepidoptera (CenH3-deficient organisms), a divergent CENP-T homolog is required for accurate mitotic progression and is sufficient to recruit Mis12 and Ndc80 outer kinetochore complexes. CRISPR-mediated knockout of CENP-T in Bombyx mori establishes an essential in vivo function. CENP-T-based kinetochore assembly functions independently of CenH3 in these insects. |
CRISPR-mediated gene editing (Bombyx mori), mass spectrometry (kinetochore composition), Co-IP (Mis12/Ndc80 recruitment), functional rescue assay |
Current biology : CB |
Medium |
32032508
|
| 2016 |
In mitotic CENP-T/W-depleted cells (using auxin-inducible degron approach), stripping of CENP-T from chromosomes in early mitosis reveals the RZZ complex (Rod-Zw10-zwilch), Spindly, Mad1/Mad2, and CENP-E require CENP-T/W function during kinetochore assembly for stable outer kinetochore association, but once assembled, remain associated after CENP-T stripping during mitosis. |
Auxin-inducible degron (AID) system, quantitative kinetochore proteomics (mass spectrometry of mitotic chromosomes), comparison with conventional knockouts |
Open biology |
Medium |
26791246
|
| 2022 |
Two copies of Ndc80C exist on CENP-T: one via direct binding and one via Mis12C. Cells lacking both CENP-T-Mis12C and CENP-C-Mis12C interactions show defects in sister chromatid cohesion and spindle checkpoint protein recruitment. Artificial direct tethering of two Ndc80C to CENP-T restores proper kinetochore-microtubule interactions without requiring direct Mis12C-Ndc80C binding, demonstrating that N-N on CENP-T is functionally sufficient. |
DT40 cell genetics, artificial engineering/tethering constructs, cell biology assays (chromosome segregation, spindle checkpoint) |
Nature communications |
Medium |
35165266
|
| 2021 |
In fission yeast, Ccp1 directly interacts with CENP-T via a Ccp1-interaction motif (CIM) at the N terminus of CENP-T, adjacent to the Ndc80 receptor motif. CDK1 phosphorylation of the CIM domain weakens Ccp1 interaction, causing Ccp1 to dissociate from centromeres in mitosis. Phospho-null CIM mutant retains Ccp1 at centromeres during mitosis and disrupts Ndc80 positioning, causing chromosome missegregation, demonstrating competitive exclusion between Ccp1 and Ndc80 at the CENP-T N terminus. |
Co-IP, mutagenesis (phosphomimetic and phospho-null mutants), in vitro CDK1 kinase assay, live-cell imaging, chromosome segregation assay |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
34810257
|
| 2024 |
CENP-T-Mis12C interaction involves three binding surfaces (identified by AlphaFold2 predictions combined with cell biological and biochemical analyses), and is cooperatively regulated by dual phosphorylation of Dsn1 (Mis12C component) and CENP-T. Each interface is important for Mis12C recruitment to CENP-T in cells. |
AlphaFold2 structure prediction validated by biochemical binding assays and cell biology (DT40 cells lacking CENP-C-Mis12C interaction), mutagenesis |
iScience |
Medium |
39628583
|
| 2024 |
Ndc80 binding to CENP-T is a two-step process: initial rapid association/dissociation from disordered N-terminal sites, followed by binding site maturation resulting in stronger Ndc80 retention. Within CENP-T clusters (high molecular density), maturation is markedly accelerated compared to soluble CENP-T monomers. The two Ndc80 binding sites in human CENP-T exhibit distinct maturation rates correlating with differences in amino acid content. |
Quantitative in vitro binding assays, molecular clustering assays, fluorescence microscopy in dividing human cells |
Proceedings of the National Academy of Sciences of the United States of America |
Medium |
39700145
|
| 2024 |
Aurora B phosphorylates CENP-W at threonine 60, which enhances the interaction between CENP-W and the histone fold domain and an uncharacterized N-terminal region of CENP-T, promoting robust metaphase chromosome alignment and accurate chromosome segregation. |
In vitro Aurora B kinase assay, Co-IP, mutagenesis, chromosome alignment assays in mitosis |
Journal of molecular cell biology |
Medium |
38200711
|
| 2020 |
In mouse oocytes, depletion of CENP-T by siRNA increases CDH1 (FZR1) levels, leading to increased APC-CDH1 activity, decreased CCNB1 levels, attenuated MPF activity, and severely compromised meiotic resumption. This defect is rescued by CCNB1 overexpression or CDH1 knockdown, placing CENP-T upstream of CDH1/APC-CDH1 in the meiotic G2/M transition pathway. |
siRNA injection in mouse oocytes, Western blot, rescue experiments (overexpression and siRNA knockdown), MPF activity assay |
Journal of cell science |
Medium |
31964702
|
| 2015 |
CENP-T C-terminus is specifically proximal to H3.1 (but not H3.2, H3.3, or H3.1 mutants C96A and C110A) at centromeres, as shown by in vivo FRET, suggesting that CENP-T bridges a CENP-A-containing and an H3.1-containing nucleosome at centromeres. |
In vivo acceptor-bleaching FRET in human cells |
International journal of molecular sciences |
Low |
25775162
|
| 2025 |
CENPT interacts with γ-glutamyl-cysteine ligase catalytic subunit (GCLC) by directly binding to GCLC residues 213-424, competitively displacing GCLM, and increasing GCLC catalytic activity, thereby promoting glutathione synthesis and inhibiting ferroptosis in renal cell carcinoma cells. GSH in turn increases CENPT expression via ATF2-mediated transcriptional regulation, forming a feedback loop. |
Co-IP, in vitro GCLC activity assay, domain mapping, ROS assay, knockdown/overexpression |
Cell death & disease |
Low |
40651948
|
| 2025 |
Cryo-EM structures of CCAN bound to free DNA and monomeric/dimeric CENP-A nucleosomes show that the CENP-T-W-S-X (TWSX) module engages 65-70 bp of DNA including 30-35 bp of an upstream α-satellite repeat in a manner resembling nucleosome DNA wrapping. On a dimeric α-satellite array, CCAN accommodation requires unwrapping of DNA from the TWSX module and 25 bp from the upstream nucleosome. |
Cryo-EM structure determination of CCAN complexes with DNA and CENP-A nucleosomes |
bioRxivpreprint |
Medium |
|
| 2025 |
Lepidopteran CENP-T forms a stable monomer due to a structural rearrangement repositioning HFD helix α3, bringing a conserved two-helical extension to take over the role of CENP-W partner. This change does not affect DNA-binding ability of lepidopteran CENP-T. |
Structural analysis, biochemical solubility/stability assays, DNA binding assays |
EMBO reports |
Medium |
41162737
|
| 2025 |
Adaptive evolution of the histone fold domain of mouse CENP-T reduced centromere binding. Chimeric CENP-T variants with HFD from closely related species showed increased centromere binding when expressed in mouse oocytes or in a transgenic mouse model, and this adaptation supports robust female gametogenesis. This effect was independent of specific centromeric DNA sequence. |
Transgenic mouse model, oocyte microinjection of chimeric CENP-T variants, quantitative centromere binding assays |
Current biology : CB |
Medium |
39947176
|