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  1. Article

    Open Access

    Donor cord blood aging accelerates in recipients after transplantation

    Cord blood stem cell transplantation is an important alternative for patients needing hematopoietic stem cell transplantation. However, it is unclear how cord blood cells, which are 0 years old, age in the rec...

    Makoto Onizuka, Tadashi Imanishi, Kaito Harada, Yasuyuki Aoyama in Scientific Reports (2023)

  2. No Access

    Protocol

    Nanopore Sequencing Data Analysis of 16S rRNA Genes Using the GenomeSync-GSTK System

    With the development of nanopore sequencing technology, long reads of DNA sequences can now be determined rapidly from various samples. This protocol introduces the GenomeSync-GSTK system for bacterial species...

    Kirill Kryukov, Tadashi Imanishi, So Nakagawa in Nanopore Sequencing (2023)

  3. Article

    Open Access

    Rapid profiling of drug-resistant bacteria using DNA-binding dyes and a nanopore-based DNA sequencer

    Spread of drug-resistant bacteria is a serious problem worldwide. We thus designed a new sequence-based protocol that can quickly identify bacterial compositions of clinical samples and their drug-resistance p...

    Ayumu Ohno, Kazuo Umezawa, Satomi Asai, Kirill Kryukov, So Nakagawa in Scientific Reports (2021)

  4. Article

    Open Access

    Comprehensive genomic analysis reveals dynamic evolution of endogenous retroviruses that code for retroviral-like protein domains

    Endogenous retroviruses (ERVs) are remnants of ancient retroviral infections of mammalian germline cells. A large proportion of ERVs lose their open reading frames (ORFs), while others retain them and become e...

    Mahoko Takahashi Ueda, Kirill Kryukov, Satomi Mitsuhashi, Hiroaki Mitsuhashi in Mobile DNA (2020)

  5. No Access

    Article

    Molecular characterization of feline paramyxovirus in Japanese cat populations

    Feline paramyxovirus (FPaV) is a member of the family Paramyxoviridae that has been reported only in Germany and the United Kingdom. We detected FPaV for the first time in Japan by transcriptome sequencing of cat...

    Shoichi Sakaguchi, So Nakagawa, Satomi Mitsuhashi, Makoto Ogawa in Archives of Virology (2020)

  6. No Access

    Article

    Identification of a distinct lineage of aviadenovirus from crane feces

    Viruses are believed to be ubiquitous; however, the diversity of viruses is largely unknown because of the bias of previous research toward pathogenic viruses. Deep sequencing is a promising and unbiased appro...

    Yahiro Mukai, Yuriko Tomita, Kirill Kryukov, So Nakagawa, Makoto Ozawa in Virus Genes (2019)

  7. Article

    Open Access

    Real-time diagnostic analysis of MinION™-based metagenomic sequencing in clinical microbiology evaluation: a case report

    Hiromasa Tanaka, Yoshiyuki Matsuo, So Nakagawa, Kenichiro Nishi in JA Clinical Reports (2019)

  8. Article

    Open Access

    Nanopore-based single molecule sequencing of the D4Z4 array responsible for facioscapulohumeral muscular dystrophy

    Subtelomeric macrosatellite repeats are difficult to sequence using conventional sequencing methods owing to the high similarity among repeat units and high GC content. Sequencing these repetitive regions is c...

    Satomi Mitsuhashi, So Nakagawa, Mahoko Takahashi Ueda in Scientific Reports (2017)

  9. Article

    Open Access

    The efficacy and further functional advantages of random-base molecular barcodes for absolute and digital quantification of nucleic acid molecules

    Accurate quantification of biomolecules in system-wide measurements is in high demand, especially for systems with limited sample amounts such as single cells. Because of this, digital quantification of nuclei...

    Taisaku Ogawa, Kirill Kryukov, Tadashi Imanishi, Katsuyuki Shiroguchi in Scientific Reports (2017)

  10. Article

    Open Access

    A portable system for rapid bacterial composition analysis using a nanopore-based sequencer and laptop computer

    We developed a portable system for 16S rDNA analyses consisting of a nanopore technology-based sequencer, the MinION, and laptop computers, and assessed its potential ability to determine bacterial composition...

    Satomi Mitsuhashi, Kirill Kryukov, So Nakagawa, Junko S. Takeuchi in Scientific Reports (2017)

  11. No Access

    Chapter

    Protein-Coding and Noncoding RNA Genes

    During the last decade, our understanding about human genes has gradually but drastically changed. When the human genome-sequencing project announced its completion in 2004, they reported the number of human p...

    Tadashi Imanishi in Evolution of the Human Genome I (2017)

  12. Article

    Selection pressure on human STR loci and its relevance in repeat expansion disease

    Short Tandem Repeats (STRs) comprise repeats of one to several base pairs. Because of the high mutability due to strand slippage during DNA synthesis, rapid evolutionary change in the number of repeating units...

    Makoto K. Shimada, Ryoko Sanbonmatsu in Molecular Genetics and Genomics (2016)

  13. Article

    Open Access

    PCDq: human protein complex database with quality index which summarizes different levels of evidences of protein complexes predicted from H-Invitational protein-protein interactions integrative dataset

    Proteins interact with other proteins or biomolecules in complexes to perform cellular functions. Existing protein-protein interaction (PPI) databases and protein complex databases for human proteins are not o...

    Shingo Kikugawa, Kensaku Nishikata, Katsuhiko Murakami in BMC Systems Biology (2012)

  14. Article

    Open Access

    Abundance of ultramicro inversions within local alignments between human and chimpanzee genomes

    Chromosomal inversion is one of the most important mechanisms of evolution. Recent studies of comparative genomics have revealed that chromosomal inversions are abundant in the human genome. While such previou...

    Yuichiro Hara, Tadashi Imanishi in BMC Evolutionary Biology (2011)

  15. Article

    CIPRO 2.5: Ciona intestinalis Protein Database - a unique integrated repository of large-scale omics data, bioinformatic analyses, and curated annotation, with ability for user rating and comments

    Toshinori Endo, Keisuke Ueno, Kouki Yonezawa, Katsuhiko Mineta in Genome Biology (2010)

  16. Article

    Open Access

    A comprehensive survey of human polymorphisms at conserved splice dinucleotides and its evolutionary relationship with alternative splicing

    Alternative splicing (AS) is a key molecular process that endows biological functions with diversity and complexity. Generally, functional redundancy leads to the generation of new functions through relaxation...

    Makoto K Shimada, Yosuke Hayakawa, Jun-ichi Takeda in BMC Evolutionary Biology (2010)

  17. No Access

    Article

    Characteristics of the β-Globin Gene Cluster Haplotypes of Three Han Chinese Populations at Bei**g, **’an, and Kunming as Compared with Those of Other Asian Populations

    Haplotype frequencies of the β-globin gene cluster of Han Chinese at Bei**g, **’an, and Kunming were estimated, and their mutual genetic relationships were examined and compared to those of Buryats, Khalkhs, ...

    Koji Shimizu, Erika Nagaoka, Yusuke Okada, Yukiko Takeuchi in Biochemical Genetics (2008)

  18. Article

    Open Access

    Two different classes of co-occurring motif pairs found by a novel visualization method in human promoter regions

    It is essential in modern biology to understand how transcriptional regulatory regions are composed of cis-elements, yet we have limited knowledge of, for example, the combinational uses of these elements and the...

    Katsuhiko Murakami, Tadashi Imanishi, Takashi Gojobori, Kenta Nakai in BMC Genomics (2008)

  19. Article

    Open Access

    A genome-wide survey of changes in protein evolutionary rates across four closely related species of Saccharomyces sensu stricto group

    Changes in protein evolutionary rates among lineages have been frequently observed during periods of notable phenotypic evolution. It is also known that, following gene duplication and loss, the protein evolut...

    Yoshihiro Kawahara, Tadashi Imanishi in BMC Evolutionary Biology (2007)

  20. No Access

    Article

    Isolation and characterization of a pig major histocompatibility complex (SLA) class II DNA cDNA clone

    Tamami Baba, Takashi Shiina, Asako Ando, Tadashi Imanishi, Naoto Matsuno in Immunogenetics (1999)

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