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Showing 1-25 of 25 results for "06-1398" within Papers
Fernando R Balestra et al.
eLife, 10 (2021-01-26)
TRIM37 is an E3 ubiquitin ligase mutated in Mulibrey nanism, a disease with impaired organ growth and increased tumor formation. TRIM37 depletion from tissue culture cells results in supernumerary foci bearing the centriolar protein Centrin. Here, we characterize these centriolar
Fatma Uzbas et al.
Bio-protocol, 13(17), e4812-e4812 (2023-09-20)
The centrosome governs many pan-cellular processes including cell division, migration, and cilium formation. However, very little is known about its cell type-specific protein composition and the sub-organellar domains where these protein interactions take place. Here, we outline a protocol for
Andrew Muroyama et al.
Molecular biology of the cell, 29(13), 1533-1541 (2018-05-10)
In most differentiated cells, microtubules reorganize into noncentrosomal arrays that are cell-type specific. In the columnar absorptive enterocytes of the intestine, microtubules form polarized apical-basal arrays that have been proposed to play multiple roles. However, in vivo testing of these
Johnny M Tkach et al.
eLife, 11 (2022-06-28)
Centrosomes act as the main microtubule organizing center (MTOC) in metazoans. Centrosome number is tightly regulated by limiting centriole duplication to a single round per cell cycle. This control is achieved by multiple mechanisms, including the regulation of the protein
Cecilia S Blengini et al.
PLoS genetics, 17(4), e1009327-e1009327 (2021-04-27)
The Aurora protein kinases are well-established regulators of spindle building and chromosome segregation in mitotic and meiotic cells. In mouse oocytes, there is significant Aurora kinase A (AURKA) compensatory abilities when the other Aurora kinase homologs are deleted. Whether the
Shinya Ohta et al.
Molecular biology of the cell, 26(7), 1225-1237 (2015-02-07)
Centrosomes nucleate spindle formation, direct spindle pole positioning, and are important for proper chromosome segregation during mitosis in most animal cells. We previously reported that centromere protein 32 (CENP-32) is required for centrosome association with spindle poles during metaphase. In
Hitesh Patel et al.
Nature communications, 4, 2056-2056 (2013-06-28)
Kindlin-1 binds to integrins and regulates integrin activation at cell adhesions. Here we report a new function of Kindlin-1 in regulating spindle assembly. We show that Kindlin-1 localizes to centrosomes, its concentration peaking during G2/M, where it associates with various
Alexis R Barr et al.
The Journal of cell biology, 189(1), 23-39 (2010-04-07)
The centrosomal protein, CDK5RAP2, is mutated in primary microcephaly, a neurodevelopmental disorder characterized by reduced brain size. The Drosophila melanogaster homologue of CDK5RAP2, centrosomin (Cnn), maintains the pericentriolar matrix (PCM) around centrioles during mitosis. In this study, we demonstrate a
Zhong Y Yeow et al.
Nature, 585(7825), 447-452 (2020-09-11)
Genomic instability is a hallmark of cancer, and has a central role in the initiation and development of breast cancer1,2. The success of poly-ADP ribose polymerase inhibitors in the treatment of breast cancers that are deficient in homologous recombination exemplifies
Salil K Sukumaran et al.
Molecular genetics and genomics : MGG, 292(2), 365-383 (2016-12-23)
Autosomal recessive primary microcephaly (MCPH) is characterized by a substantial reduction in brain size but with normal architecture. It is often linked to mutations in genes coding for centrosomal proteins; however, their role in brain size regulation is not completely
Garrison Buss et al.
Molecular biology of the cell, 33(13), ar118-ar118 (2022-08-25)
DNA replication is normally coupled with centriole duplication in the cell cycle. Trophoblast giant cells (TGCs) of the placenta undergo endocycles resulting in polyploidy but their centriole state is not known. We used a cell culture model for TGC differentiation
Khaled Aziz et al.
The Journal of clinical investigation, 128(8), 3517-3534 (2018-07-24)
A homozygous truncating frameshift mutation in CEP57 (CEP57T/T) has been identified in a subset of mosaic-variegated aneuploidy (MVA) patients; however, the physiological roles of the centrosome-associated protein CEP57 that contribute to disease are unknown. To investigate these, we have generated
Tatsuo Miyamoto et al.
Human molecular genetics, 26(22), 4429-4440 (2017-10-04)
Primary microcephaly (MCPH) is an autosomal recessive disorder characterized by congenital reduction of head circumference. Here, we identified compound heterozygous mutations c.731 C > T (p.Ser 244 Leu) and c.2413 G > T (p.Glu 805 X) in the WDR62/MCPH2 gene, which encodes the mitotic centrosomal protein
Andrew Muroyama et al.
The Journal of cell biology, 213(6), 679-692 (2016-06-15)
Differentiation induces the formation of noncentrosomal microtubule arrays in diverse tissues. The formation of these arrays requires loss of microtubule-organizing activity (MTOC) at the centrosome, but the mechanisms regulating this transition remain largely unexplored. Here, we use the robust loss
Joo-Hee Sir et al.
The Journal of cell biology, 203(5), 747-756 (2013-12-04)
Most animal cells contain a centrosome, which comprises a pair of centrioles surrounded by an ordered pericentriolar matrix (PCM). Although the role of this organelle in organizing the mitotic spindle poles is well established, its precise contribution to cell division
Elena Fdez et al.
iScience, 25(6), 104476-104476 (2022-06-21)
Mutations in LRRK2 increase its kinase activity and cause Parkinson's disease. LRRK2 phosphorylates a subset of Rab proteins which allows for their binding to RILPL1. The phospho-Rab/RILPL1 interaction causes deficits in ciliogenesis and interferes with the cohesion of duplicated centrosomes.
Kaitlin Ching et al.
eLife, 11 (2022-04-15)
Olfactory sensory neurons (OSNs) in vertebrates detect odorants using multiple cilia, which protrude from the end of the dendrite and require centrioles for their formation. In mouse olfactory epithelium, the centrioles originate in progenitor cells near the basal lamina, often
Yuki Kobayashi et al.
FASEB bioAdvances, 3(9), 744-767 (2021-09-07)
The primary cilium is a plasma membrane-protruding sensory organelle that efficiently conveys signaling cascades in a highly ordered microenvironment. Its signaling is mediated, in part, by a limited set of GPCRs preferentially enriched in the cilium membrane. This includes melanin-concentrating
Akari Nakamura et al.
IBRO neuroscience reports, 13, 264-273 (2022-09-28)
The centrosome lacks microtubule (MT)-nucleation activity in differentiated neurons. We have previously demonstrated that MTs were nucleated at the cytoplasm of mouse neurons. They are supposed to serve seeds for MTs required for dendrite growth. However, the factors that activate
Maria P Gavilan et al.
EMBO reports, 19(11) (2018-09-19)
Here, we address the regulation of microtubule nucleation during interphase by genetically ablating one, or two, of three major mammalian γ-TuRC-binding factors namely pericentrin, CDK5Rap2, and AKAP450. Unexpectedly, we find that while all of them participate in microtubule nucleation at
Anil Shukla et al.
Nature communications, 6, 8077-8077 (2015-08-22)
Centrosome overduplication promotes mitotic abnormalities, invasion and tumorigenesis. Cells regulate the number of centrosomes by limiting centriole duplication to once per cell cycle. The orthogonal orientation between a mother and a daughter centriole, established at the time of centriole duplication
Zhenzhen Chu et al.
Cells, 11(7) (2022-04-13)
Centrosomes represent main microtubule organizing centers (MTOCs) in animal cells. Their duplication in S-phase enables the establishment of two MTOCs in M-phase that define the poles of the spindle and ensure equal distribution of chromosomes and centrosomes to the two
Donghee Kang et al.
Scientific reports, 10(1), 17000-17000 (2020-10-14)
Cep215 (also known as Cdk5rap2) is a centrosome protein which is involved in microtubule organization. Cep215 is also placed at specific subcellular locations and organizes microtubules outside the centrosome. Here, we report that Cep215 is involved in morphological differentiation of
Sadanori Watanabe et al.
The Journal of cell biology, 219(12) (2020-11-11)
Centrosomes, composed of centrioles that recruit a pericentriolar material (PCM) matrix assembled from PCNT and CDK5RAP2, catalyze mitotic spindle assembly. Here, we inhibit centriole formation and/or remove PCNT-CDK5RAP2 in RPE1 cells to address their relative contributions to spindle formation. While
Shinya Ohta et al.
PloS one, 10(11), e0142798-e0142798 (2015-11-13)
The centrosome-associated C1orf96/Centriole, Cilia and Spindle-Associated Protein (CSAP) targets polyglutamylated tubulin in mitotic microtubules (MTs). Loss of CSAP causes critical defects in brain development; however, it is unclear how CSAP association with MTs affects mitosis progression. In this study, we
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