| 2002 |
Cep135 is a 135-kDa coiled-coil centrosomal protein that localizes to the centrosome throughout the cell cycle, independent of the microtubule network. It distributes in association with electron-dense pericentriolar material. Three independent centrosome-targeting domains were identified by deletion construct analysis. Overexpression or RNAi suppression both caused disorganization of interphase and mitotic spindle microtubules, establishing a role in centrosomal microtubule organization. |
Monoclonal antibody identification, deletion construct overexpression, RNA interference, immunofluorescence microscopy |
The Journal of cell biology |
High |
11781336
|
| 2000 |
Overexpressed Cep135 assembles into filamentous polymers and whorl-like particles composed of ~7 nm parallel dense lines both at the centrosome and in the cytoplasm, with the polymer architecture dependent on specific domains of the protein, indicating Cep135 is a structural self-assembling component of the centrosome. |
Transient transfection of HA/GFP-tagged full-length and truncated constructs in CHO cells and baculovirus expression in Sf9 cells, electron microscopy |
Microscopy research and technique |
Medium |
10842375
|
| 2004 |
Cep135 directly interacts with the p50 dynactin subunit (dynamitin) via the C-terminal sequence of Cep135 binding the central domain of p50. This interaction is required for centrosomal targeting of p50; exogenous p50 lacking the Cep135-binding domain failed to localize to the centrosome. Altered levels of either protein displaced the other as well as γ-tubulin and pericentrin, leading to microtubule disorganization. |
Yeast two-hybrid screen, co-immunoprecipitation, immunostaining of co-expressed binding domains in CHO cells, RNAi, overexpression |
Cell motility and the cytoskeleton |
High |
14983524
|
| 2008 |
CEP135 acts as a platform protein for C-NAP1 at the centriole. Depletion of CEP135 caused premature centrosome splitting accompanied by specific reduction of centrosomal C-NAP1 levels. Ectopic expression of CEP135 mutant proteins also caused centrosome splitting with reduced centrosomal C-NAP1, establishing CEP135 as required for C-NAP1 centriolar localization. |
RNAi knockdown, overexpression of CEP135 mutants, immunofluorescence microscopy |
Experimental cell research |
Medium |
18851962
|
| 2012 |
CEP135/Bld10 can bind and stabilize microtubules and is required for the early steps of central microtubule pair formation in Drosophila flagella. Assembly of the central MT pair begins prior to meiotic divisions with nucleation of a singlet MT within the basal body, and BLD10/CEP135 is essential for this early nucleation step. |
Drosophila genetic analysis, electron microscopy of spermatogenesis, MT binding/stabilization assays |
Developmental cell |
High |
22898782
|
| 2012 |
In Tetrahymena, Bld10/Cep135 is an outer cartwheel domain protein that stabilizes basal bodies to resist the forces generated by ciliary beating. Bld10 promotes stability of the A- and C-tubules of the triplet microtubules and proper positioning of the triplet MT blades. In bld10Δ cells, ciliary beating forces promote basal body disassembly, revealing a role in basal body maintenance distinct from its assembly role. |
Tetrahymena genetic deletion, electron microscopy, live-cell analysis of basal body dynamics |
Molecular biology of the cell |
High |
23115304
|
| 2012 |
In Drosophila, Cep135/Bld10 is not essential for cartwheel formation or establishing the ninefold symmetry of centrioles. However, absence of Cep135/Bld10 leads to increased centriole width and progressive cartwheel disassembly over time. Cep135/Bld10 localizes between inner (SAS-6, Ana2) and outer (Asl, DSpd-2, D-PLP) centriolar components and stabilizes the connection between these inner and outer components. |
Drosophila Cep135/Bld10 mutant analysis, electron tomography, 3D structured illumination microscopy (SIM) |
Journal of cell science |
High |
22976301
|
| 2013 |
Human CEP135 directly interacts with hSAS-6 via its carboxyl-terminus and with microtubules via its amino-terminus. CEP135 also interacts with microcephaly protein CPAP via its amino-terminal domain. CEP135 depletion perturbed centriolar localization of CPAP, blocked CPAP-induced centriole elongation, and caused abnormal centriole structures with altered numbers of MT triplets and shorter centrioles. A CEP135 mutant lacking the hSAS-6 interaction had a dominant-negative effect on centriole assembly, establishing CEP135 as a linker between the SAS-6 cartwheel hub and outer MTs. |
Co-immunoprecipitation, in vitro binding assays, RNAi depletion, overexpression of domain mutants, immunofluorescence and electron microscopy |
The EMBO journal |
High |
23511974
|
| 2013 |
Disruption of Cep135 in DT40 chicken cells produces viable cells with a small decrease in centriole numbers, increased monopolar spindles, and an atypical structure in the centriole lumen by electron microscopy. Cep135 loss significantly increases centrosome amplification after S-phase arrest (hydroxyurea treatment), indicating Cep135 inhibits centrosome reduplication during S-phase delay and is required for structural integrity of centrioles. |
Targeted gene disruption in DT40 cells, electron microscopy, flow cytometry, immunofluorescence |
Molecular biology of the cell |
High |
23864714
|
| 2014 |
Nek2-mediated multisite phosphorylation of C-Nap1's C-terminal domain perturbs its interaction with Cep135. Interaction between endogenous C-Nap1 and Cep135 is specifically lost in mitosis. Phosphorylation of C-Nap1 leads to loss of oligomerization and centrosome association, and loss of Cep135 binding contributes to centrosome disjunction at mitotic entry. |
In vitro kinase assay, co-immunoprecipitation of endogenous proteins across cell cycle stages, phosphomimetic/non-phosphorylatable mutant analysis |
Journal of cell science |
High |
24695856
|
| 2014 |
The Drosophila ortholog Bld10 (Cep135) is required to establish centrosome asymmetry in neuroblasts by mediating shedding of Polo kinase from the mother centrosome. bld10 mutants fail to downregulate Polo and PCM from the mother centrosome, generating two active MTOCs, causing spindle alignment defects, centrosome segregation errors, and incorrect retention of the older mother centrosome by neuroblasts. |
Drosophila bld10 mutant analysis, live imaging, immunofluorescence microscopy |
Current biology : CB |
High |
24954048
|
| 2016 |
The N-terminal 158 residues of human CEP135 form a parallel two-stranded coiled-coil structure. This domain binds tubulin, protofilaments, and microtubules in vitro and induces MT bundle formation. A 13-amino-acid segment (residues 96–108) represents the major MT-binding site, containing three lysine residues that contribute to the MT bundling activity. |
X-ray crystallography, small-angle X-ray scattering (SAXS), cryo-electron microscopy, fluorescence microscopy, in vitro MT binding/bundling assays, site-directed mutagenesis |
Structure (London, England : 1993) |
High |
27477386
|
| 2015 |
A short splice isoform of CEP135 (CEP135mini) represses centriole duplication by limiting centriolar localization of CEP135full binding partners SAS-6 and CPAP, and pericentriolar localization of γ-tubulin. CEP135mini and CEP135full have distinct and complementary centrosomal localizations during the cell cycle; CEP135mini decreases from centrosomes at anaphase onset, which is proposed to allow new centriole assembly. |
Isoform-specific overexpression and knockdown, immunofluorescence microscopy, cell cycle staging |
Current biology : CB |
Medium |
26412126
|
| 2019 |
The ratio of full-length CEP135 (CEP135full) to CEP135mini is increased in breast cancer cell lines with high centrosome amplification. Inducing expression of CEP135full increases centrosome amplification frequency, multipolar spindles, anaphase-lagging chromosomes, and micronuclei; inducing CEP135mini reduces centrosome number. The differential isoform expression is regulated by alternative polyadenylation. Directed mutations near the CEP135mini alternative polyadenylation signal reduce the CEP135full:mini ratio and decrease centrosome amplification. |
Isoform-specific induction in breast cancer cell lines, immunofluorescence for centrosome number and spindle phenotypes, genome editing of polyadenylation signal |
Molecular biology of the cell |
Medium |
30811267
|
| 2022 |
CEP135 loss-of-function (CRISPR knockout) in human cells causes compromised PCM recruitment, reduced MTOC function, and premature centrosome splitting with imbalanced PCMs during interphase. However, defective CEP135 KO centrosomes compensate during mitosis to establish balanced spindle poles, allowing unperturbed mitosis and regular cell proliferation. CEP135 was also found to form a complex with centriolar satellite proteins SSX2IP and WDR8 before centrosome assembly. |
CRISPR knockout, immunofluorescence microscopy, co-immunoprecipitation |
Cells |
Medium |
35406752
|
| 2022 |
In Chlamydomonas, Bld10p/Cep135 connects cartwheel spokes to triplet microtubules and determines the inter-triplet distance in the centriole, thereby regulating the number of triplet microtubules in a cartwheel-independent manner. Truncated Bld10p in cartwheel-deficient centrioles significantly reduces the inter-triplet distance and frequently generates eight-microtubule centrioles. Immunoelectron microscopy localized hemagglutinin-tagged Bld10p along two lines connecting adjacent triplets, corresponding to crosslinking structures identified by conventional and cryo-EM. |
Chlamydomonas mutant analysis, immunoelectron microscopy with HA epitope tagging, conventional and cryo-electron microscopy |
The EMBO journal |
High |
36093892
|
| 2025 |
LZTS2 negatively regulates centrosomal CEP135 levels. Depletion of LZTS2 increases microtubule nucleation at the centrosome, and this effect is dependent on CEP135 since depletion of LZTS2 partially rescues impaired centrosome microtubule nucleation caused by CEP135 knockdown. |
RNAi knockdown of LZTS2 and CEP135, fluorescence microscopy for centrosomal CEP135 levels and microtubule nucleation assays, epistasis analysis |
Cytoskeleton (Hoboken, N.J.) |
Medium |
40521914
|
| 2025 |
CEP135 is a component of a luminal ring network at the distal centriole that includes C2CD3/SFI1/centrin-2/CEP135/NA14. C2CD3 depletion destabilizes this luminal ring network, placing CEP135 within an architectural scaffold at the distal centriole lumen connected to the distal microtubule cap and appendages. |
Ultrastructure Expansion Microscopy (U-ExM), iterative U-ExM, cryo-electron tomography, RNAi depletion |
bioRxivpreprint |
Medium |
bio_10.1101_2025.06.17.660204
|
| 2025 |
CEP135 interacts with spermatogenic proteins SPATA6 and AKAP3, regulating their expression and stability. Conditional knockout of Cep135 in premeiotic germ cells (Stra8-Cre) causes defects in acrosome formation, flagellum structure, and head-to-tail connections during spermatogenesis, leading to oligoasthenoteratozoospermia and male infertility, without affecting premeiosis. |
Conditional knockout (Stra8-Cre × Cep135flox/flox), scanning and transmission electron microscopy, proteomics, co-immunoprecipitation |
Cellular and molecular life sciences : CMLS |
Medium |
40095067
|
| 2023 |
CEP135 promotes endothelial cell migration by mediating centrosome polarization and microtubule stability. CEP135 siRNA inhibits in vivo angiogenesis. CEP135 affects spindle orientation and mediates cell cycle progression in endothelial cells. A tubulin turbidity assay confirmed CEP135 promotes microtubule stabilization. |
siRNA knockdown, tube formation assay, in vivo angiogenesis assay, wound healing and transwell migration assays, tubulin turbidity assay, flow cytometry |
Frontiers in bioscience (Landmark edition) |
Low |
38062802
|