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Difference between revisions of "User:Takayuki Ohnuma"

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Takayuki Ohnuma is an assistant professor at Department of Advanced Bioscience, Faculty of Agriculture, Kinki University located in Nara, Japan.
 
Takayuki Ohnuma is an assistant professor at Department of Advanced Bioscience, Faculty of Agriculture, Kinki University located in Nara, Japan.
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[[File:Taka.jpg]]He received PhD degree in 2002 from Graduate School of Agriculture in Kyushu University. His research program currently focuses on the structures and functions of plant chitinases (GH18 and GH19), including their CBMs (CBM18 and CBM50), which are involved in plant self-defense against fungal pathogens. In 2013, He and his colabolater published [9] the structure of a complex of rye family 19 chitinase with two molecules of (GlcNAc)4. This is the first report on the complete subsite mapping of GH19 chitinase.
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He received his Ph.D. degree in 2002 from the Graduate School of Agriculture in Kyushu University. His research program currently focuses on the structures and functions of chitinolytic enzymes <cite>Ohnuma2011a Ohnuma2011b Ohnuma2011c Ohnuma2012 Ohnuma2013 Ohnuma2014</cite>, including their CBMs <cite>Ohnuma2008 Shinya2013</cite>. In 2013, He and his collaborators published the structure of a complex of rye [[Glycoside Hydrolase Family 19]] chitinase with two molecules of (GlcNAc)<sub>4</sub> <cite>Ohnuma2013</cite>. This is the first report on the complete subsite mapping of a [[GH19]] chitinase.
  
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References
 
References
  
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1.        Ohnuma T, Umemoto N, Nagata T, Shinya S, Numata T, Taira T, Fukamizo T. Crystal structure of a "loopless" GH19 chitinase in complex with chitin tetrasaccharide spanning the catalytic center. Biochim Biophys Acta, 1844, 793-802 (2014)
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<biblio>
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#Ohnuma2011a pmid=21240541
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2.        Ohnuma T, Umemoto N, Kondo K, Numata T, Fukamizo T. Complete subsite mapping of a "loopful" GH19 chitinase from rye seeds based on its crystal structure. FEBS Lett, 587, 2691-7 (2013)
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#Ohnuma2011b pmid=21390509
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#Ohnuma2011c pmid=21838762
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3.        Ohnuma T, Taira T, Fukamizo T. Antifungal activity of recombinant class V chitinases from Nicotiana tabacum and Arabidopsis thaliana. J Appl Glycosci, 59, 1, 47-50 (2012)
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#Ohnuma2012 pmid=22831795
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#Ohnuma2013 pmid=23871710
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4.        Umemoto N*, Ohnuma T*, Mizuhara M, Sato H, Skriver K, Fukamizo T. Introduction of a tryptophan side chain into subsite +1 enhances transglycosylation activity of a GH-18 chitinase from Arabidopsis thaliana, AtChiC. Glycobiology, 23, 81-90 (2013) (*equally contributed)
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#Ohnuma2014 pmid=24582745
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#Ohnuma2008 pmid=18083709
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5.        Ohnuma T, Numata T, Osawa T, Inanaga H, Okazaki Y, Shinya S, Kondo K, Fukuda T, Fukamizo T. Crystal structure and chitin oligosaccharide-binding mode of a 'loopful' family GH19 chitinase from rye, Secale cereale, seeds. FEBS J, 19, 3639-3651 (2012)
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#Shinya2013 pmid=23986450
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</biblio>
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6.        Umemoto N*, Ohnuma T*, Urpilainen H, Yamamoto T, Numata T, Fukamizo T. Role of tryptophan residues in a class V chitinase from Nicotiana tabacum. Biosci Biotechnol Biochem, 76,778-784 (2012) (equally contributed)
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7.        Ohnuma T, Fukuda T, Dozen S, Honda Y, Kitaoka M, Fukamizo T. A glycosynthase derived from an inverting GH19 chitinase from the moss Bryum coronatum. Biochem J, 444, 437-443 (2012)
 
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8.        Shinya S*, Ohnuma T*, Kawamura S, Torikata T, Nishimura S, Katoh E, Fukamizo T. Interaction of a goose-type lysozyme with chitin oligosaccharides as determined by NMR spectroscopy. J Biochem, 150, 569-577 (2011) (*equally contributed)
 
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9.        Ohnuma T, Sørlie M, Fukuda T, Kawamoto N, Taira T, Fukamizo T. Chitin oligosaccharide binding to a family GH19 chitinase from the moss Bryum coronatum. FEBS J, 278, 3991-4001 (2011)
 
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10.    Ohnuma T, Numata T, Osawa T, Mizuhara M, Lampela O, Juffer AH, Skriver K, Fukamizo T. A class V chitinase from Arabidopsis thaliana: gene responses, enzymatic properties, and crystallographic analysis. Planta, 234, 123-137 (2011)
 
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11.    Ohnuma T, Numata T, Osawa T, Mizuhara M, Vårum KM, Fukamizo T. Crystal structure and mode of action of a class V chitinase from Nicotiana tabacum. Plant Mol Biol, 75, 291-304 (2011)        Normal  0  false      0  2    false  false  false    EN-US  JA  X-NONE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
 
 
[[Category:Contributors|Ohnuma, Takayuki]]
 
[[Category:Contributors|Ohnuma, Takayuki]]

Latest revision as of 09:15, 8 December 2016

Taka.jpg

Takayuki Ohnuma is an assistant professor at Department of Advanced Bioscience, Faculty of Agriculture, Kinki University located in Nara, Japan. He received his Ph.D. degree in 2002 from the Graduate School of Agriculture in Kyushu University. His research program currently focuses on the structures and functions of chitinolytic enzymes [1, 2, 3, 4, 5, 6], including their CBMs [7, 8]. In 2013, He and his collaborators published the structure of a complex of rye Glycoside Hydrolase Family 19 chitinase with two molecules of (GlcNAc)4 [5]. This is the first report on the complete subsite mapping of a GH19 chitinase.


References

  1. Ohnuma T, Numata T, Osawa T, Mizuhara M, Vårum KM, and Fukamizo T. (2011). Crystal structure and mode of action of a class V chitinase from Nicotiana tabacum. Plant Mol Biol. 2011;75(3):291-304. DOI:10.1007/s11103-010-9727-z | PubMed ID:21240541 [Ohnuma2011a]
  2. Ohnuma T, Numata T, Osawa T, Mizuhara M, Lampela O, Juffer AH, Skriver K, and Fukamizo T. (2011). A class V chitinase from Arabidopsis thaliana: gene responses, enzymatic properties, and crystallographic analysis. Planta. 2011;234(1):123-37. DOI:10.1007/s00425-011-1390-3 | PubMed ID:21390509 [Ohnuma2011b]
  3. Ohnuma T, Sørlie M, Fukuda T, Kawamoto N, Taira T, and Fukamizo T. (2011). Chitin oligosaccharide binding to a family GH19 chitinase from the moss Bryum coronatum. FEBS J. 2011;278(21):3991-4001. DOI:10.1111/j.1742-4658.2011.08301.x | PubMed ID:21838762 [Ohnuma2011c]
  4. Ohnuma T, Numata T, Osawa T, Inanaga H, Okazaki Y, Shinya S, Kondo K, Fukuda T, and Fukamizo T. (2012). Crystal structure and chitin oligosaccharide-binding mode of a 'loopful' family GH19 chitinase from rye, Secale cereale, seeds. FEBS J. 2012;279(19):3639-3651. DOI:10.1111/j.1742-4658.2012.08723.x | PubMed ID:22831795 [Ohnuma2012]
  5. Ohnuma T, Umemoto N, Kondo K, Numata T, and Fukamizo T. (2013). Complete subsite mapping of a "loopful" GH19 chitinase from rye seeds based on its crystal structure. FEBS Lett. 2013;587(16):2691-7. DOI:10.1016/j.febslet.2013.07.008 | PubMed ID:23871710 [Ohnuma2013]
  6. Ohnuma T, Umemoto N, Nagata T, Shinya S, Numata T, Taira T, and Fukamizo T. (2014). Crystal structure of a "loopless" GH19 chitinase in complex with chitin tetrasaccharide spanning the catalytic center. Biochim Biophys Acta. 2014;1844(4):793-802. DOI:10.1016/j.bbapap.2014.02.013 | PubMed ID:24582745 [Ohnuma2014]
  7. Ohnuma T, Onaga S, Murata K, Taira T, and Katoh E. (2008). LysM domains from Pteris ryukyuensis chitinase-A: a stability study and characterization of the chitin-binding site. J Biol Chem. 2008;283(8):5178-87. DOI:10.1074/jbc.M707156200 | PubMed ID:18083709 [Ohnuma2008]
  8. Shinya S, Ohnuma T, Yamashiro R, Kimoto H, Kusaoke H, Anbazhagan P, Juffer AH, and Fukamizo T. (2013). The first identification of carbohydrate binding modules specific to chitosan. J Biol Chem. 2013;288(42):30042-30053. DOI:10.1074/jbc.M113.503243 | PubMed ID:23986450 [Shinya2013]

All Medline abstracts: PubMed

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