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- Hiroki Shibuya
Hiroki Shibuya
Universitetslektor
Institutionen för kemi och molekylärbiologiOm Hiroki Shibuya
Meiosis is a specialized form of cell division for producing haploid germ cells. Errors in meiosis lead to chromosomal aneuploidy, the leading cause of miscarriage and developmental and intellectual disabilities. The critical event during meiosis is the pairing and recombination of homologous chromosomes, which occurs during meiotic prophase I.
The pairing and recombination of homologous chromosomes increases genetic diversity, promotes evolution, and, more crucially, ensures the correct segregation of homologous chromosomes during the following cell divisions.
Our studies try to address the fundamental question of how pairing and recombination of homologous chromosomes are regulated on the molecular level during mammalian meiosis using the mouse as our model system. We employ a combination of genetic, molecular, cytological, and biochemical approaches. Specifically, we are pursuing the following major projects:
1: Dissection of telomere functions required for homologous pairing.
2: Screening for novel proteins regulating meiotic recombination.
We are actively looking for postdoctoral researchers and PhD students. If you are interested in our group, please inquire by contacting Hiroki directly by email (hiroki.shibuya@gu.se).
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Caenorhabditis elegans telomere- binding proteins TEBP-1 and TEBP-2 adapt the Myb module to dimerize and bind telomeric
DNA
Shilpa Padmanaban, Nils Lambacher, Valerie M. Tesmer, Jingjing Zhang, Hiroki Shibuya, Jayakrishnan Nandakumar
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA - 2024 -
Regulation of meiotic telomere dynamics through membrane fluidity promoted by
AdipoR2-ELOVL2
Jingjing Zhang, Mario Ruiz, Per-Olof Bergh, Marcus Henricsson, Nena Stojanovic, Ranjan Devkota, Marius Henn, Mohammad Bohlooly-Y, Abrahan Hernandez-Hernandez, Manfred Alsheimer, Jan Borén, Marc Pilon, Hiroki Shibuya
NATURE COMMUNICATIONS - 2024 -
MEILB2-BRME1 forms a V-shaped DNA clamp upon BRCA2-binding in meiotic
recombination
Manickam Gurusaran, Jingjing Zhang, Kexin Zhang, Hiroki Shibuya, Owen R. Davies
NATURE COMMUNICATIONS - 2024 -
1700029I15Rik orchestrates the biosynthesis of acrosomal membrane proteins required for sperm-egg
interaction.
Yonggang Lu, Kentaro Shimada, Shaogeng Tang, Jingjing Zhang, Yo Ogawa, Taichi Noda, Hiroki Shibuya, Masahito Ikawa
Proceedings of the National Academy of Sciences of the United States of America - 2023 -
Distinct dynein complexes defined by DYNLRB1 and DYNLRB2 regulate mitotic and male meiotic spindle
bipolarity.
Shuwen He, John P Gillies, Juliana L Zang, Carmen Córdoba-Beldad, Io Yamamoto, Yasuhiro Fujiwara, Julie Grantham, Morgan E DeSantis, Hiroki Shibuya
Nature communications - 2023 -
The TERB1 MYB domain suppresses telomere erosion in meiotic prophase
I.
K Zhang, Agata Tarczykowska, Deepesh Kumar Gupta, Devon F Pendlebury, Cassandra Zuckerman, Jayakrishnan Nandakumar, Hiroki Shibuya
Cell reports - 2022 -
The KASH5 protein involved in meiotic chromosomal movements is a novel dynein activating
adaptor
Ritvija Agrawal, John P. Gillies, Juliana L. Zang, Jingjing Zhang, Sharon R. Garrott, Hiroki Shibuya, Jayakrishnan Nandakumar, Morgan E. Desantis
eLife - 2022 -
Structure of a meiosis-specific complex central to BRCA2 localization at recombination
sites.
Devon F Pendlebury, Jingjing Zhang, Ritvija Agrawal, Hiroki Shibuya, Jayakrishnan Nandakumar
Nature structural & molecular biology - 2021 -
BRCA2 in mammalian
meiosis.
Jingjing Zhang, Jayakrishnan Nandakumar, Hiroki Shibuya
Trends in cell biology - 2021 -
Telomeric double-strand DNA-binding proteins DTN-1 and DTN-2 ensure germline immortality in Caenorhabditis
elegans.
Io Yamamoto, Kexin Zhang, Jingjing Zhang, Egor Vorontsov, Hiroki Shibuya
eLife - 2021 -
The BRCA2-MEILB2-BRME1 complex governs meiotic recombination and impairs the mitotic BRCA2-RAD51 function in cancer
cells.
Jingjing Zhang, Manickam Gurusaran, Yasuhiro Fujiwara, Kexin Zhang, Meriem Echbarthi, Egor Vorontsov, Rui Guo, Devon F Pendlebury, Intekhab Alam, Gabriel Livera, Martini Emmanuelle, P Jeremy Wang, Jayakrishnan Nandakumar, Owen R Davies, Hiroki Shibuya
Nature communications - 2020 -
Meiotic cohesins mediate initial loading of HORMAD1 to the chromosomes and coordinate SC formation during meiotic
prophase.
Yasuhiro Fujiwara, Yuki Horisawa-Takada, Erina Inoue, Naoki Tani, Hiroki Shibuya, Sayoko Fujimura, Ryo Kariyazono, Toyonori Sakata, Kunihiro Ohta, Kimi Araki, Yuki Okada, Kei-Ichiro Ishiguro
PLoS genetics - 2020 -
The demethylase NMAD-1 regulates DNA replication and repair in the Caenorhabditis elegans
germline.
Simon Yuan Wang, Hui Mao, Hiroki Shibuya, Satoru Uzawa, Zach Klapholz O'Brown, Sage Wesenberg, Nara Shin, Takamune T Saito, Jinmin Gao, Barbara J Meyer, Monica P Colaiácovo, Eric Lieberman Greer
PLoS genetics - 2019 -
A meiosis-specific BRCA2 binding protein recruits recombinases to DNA double-strand breaks to ensure homologous
recombination.
Jingjing Zhang, Yasuhiro Fujiwara, Shohei Yamamoto, Hiroki Shibuya
Nature communications - 2019 -
Sources of artifact in measurements of 6mA and 4mC abundance in eukaryotic genomic
DNA.
Zach K O'Brown, Konstantinos Boulias, Jie Wang, Simon Yuan Wang, Natasha M O'Brown, Ziyang Hao, Hiroki Shibuya, Paul-Enguerrand Fady, Yang Shi, Chuan He, Sean G Megason, Tao Liu, Eric L Greer
BMC genomics - 2019 -
Live-cell microscopy of meiosis in
spermatocytes.
Hiroki Shibuya, Yoshinori Watanabe
Methods in cell biology - 2018 -
Dissecting the telomere-inner nuclear membrane interface formed in
meiosis.
Devon F Pendlebury, Yasuhiro Fujiwara, Valerie M Tesmer, Eric M Smith, Hiroki Shibuya, Yoshinori Watanabe, Jayakrishnan Nandakumar
Nature structural & molecular biology - 2017 -
Distinct TERB1 Domains Regulate Different Protein Interactions in Meiotic Telomere
Movement.
Jingjing Zhang, Zhaowei Tu, Yoshinori Watanabe, Hiroki Shibuya
Cell reports - 2017 -
Meiotic DNA break formation requires the unsynapsed chromosome axis-binding protein IHO1 (CCDC36) in
mice
Marcello Stanzione, Marek Baumann, Frantzeskos Papanikos, Ihsan Dereli, Julian Lange, Angelique Ramlal, Daniel Tränkner, Hiroki Shibuya, Bernard De Massy, Yoshinori Watanabe, Maria Jasin, Scott Keeney, Attila Tóth
Nature Cell Biology - 2016 -
Essential role of the Cdk2 activator RingoA in meiotic telomere tethering to the nuclear
envelope
Petra Mikolcevic, Michitaka Isoda, Hiroki Shibuya, Ivan del Barco Barrantes, Ana Igea, José A. Suja, Sue Shackleton, Yoshinori Watanabe, Angel R. Nebreda
Nature communications - 2016 -
MAJIN Links Telomeric DNA to the Nuclear Membrane by Exchanging Telomere
Cap
Hiroki Shibuya, Abrahan Hernández-Hernández, Akihiro Morimoto, Lumi Negishi, Christer Höög, Yoshinori Watanabe
Cell - 2015 -
The meiosis specific modification of mammalian
telomeres
Hiroki Shibuya, Yoshinori Watanabe
Cell Cycle - 2014 -
Meiosis-specific cohesin mediates homolog recognition in mouse
spermatocytes.
Kei-Ichiro Ishiguro, Jihye Kim, Hiroki Shibuya, Abrahan Hernández-Hernández, Aussie Suzuki, Tatsuo Fukagawa, Go Shioi, Hiroshi Kiyonari, Xin C Li, John Schimenti, Christer Höög, Yoshinori Watanabe
Genes & development - 2014 -
The TRF1-binding protein TERB1 promotes chromosome movement and telomere rigidity in
meiosis.
Hiroki Shibuya, Kei-ichiro Ishiguro, Yoshinori Watanabe
Nature cell biology - 2014 -
Mouse CCDC79 (TERB1) is a meiosis-specific telomere associated
protein
Katrin Daniel, Daniel Tränkner, Lukasz Wojtasz, Hiroki Shibuya, Yoshinori Watanabe, Manfred Alsheimer, Attila Tóth
BMC Cell Biology - 2014 -
The Dissection of Meiotic Chromosome Movement in Mice Using an In Vivo Electroporation
Technique
Hiroki Shibuya, Akihiro Morimoto, Yoshinori Watanabe
PLoS Genetics - 2014 -
A conserved KASH domain protein associates with telomeres, SUN1, and dynactin during mammalian
meiosis
Akihiro Morimoto, Hiroki Shibuya, Xiaoqiang Zhu, Jihye Kim, Kei Ichiro Ishiguro, Min Han, Yoshinori Watanabe
Journal of Cell Biology - 2012