Numata K

References (4)

Title : Characterization of the depolymerizing activity of commercial lipases and detection of lipase-like activities in animal organ extracts using poly(3-hydroxybutyrate-co-4-hydroxybutyrate) thin film - Mok_2016_AMB.Express_6_97
Author(s) : Mok PS , Ch'ng DH , Ong SP , Numata K , Sudesh K
Ref : AMB Express , 6 :97 , 2016
Abstract : Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)] is one of the polyhydroxyalkanoate (PHA) copolymers which can be degraded by lipases. In this study, the depolymerizing activity of different known commercial lipases was investigated via microassay using P(3HB-co-92 mol % 4HB) thin film as substrate. Non-enzymatic hydrolysis occurred under conditions in which buffers with pH 12 and 13 were added or temperature of 50 degreesC and above. Different concentrations of metal ions or detergents alone did not cause the film hydrolysis. The depolymerizing activity of lipases on P(3HB-co-4HB) was optimum in the pH range of 6-8 and at temperatures between 30 and 50 degreesC. Addition of metal ions and detergents in different concentrations was also shown to cause variable effects on the depolymerizing activity of commercial lipases. Pancreatic extracts from both mouse and chicken showed similar depolymerizing activity as the commercial lipases on the P(3HB-co-4HB) film. The presence of lipolytic enzymes in the organ extracts was confirmed with another lipase activity assay, p-nitrophenyl laurate assay. For the first time this has produced a direct evidence for the involvement of lipase-like enzymes from animal in the degradation of this PHA. Lipase is most likely the enzyme from pancreas that was involved in the degradation.
ESTHER : Mok_2016_AMB.Express_6_97
PubMedSearch : Mok_2016_AMB.Express_6_97
PubMedID: 27730572

Title : Sonographic assessment of fatty liver infiltration using the measurement of para- and perirenal fat thickness - Kawasaki_2010_J.Clin.Ultrasound_38_470
Author(s) : Kawasaki S , Hasegawa O , Satoh S , Numata K , Terauchi Y
Ref : J Clin Ultrasound , 38 :470 , 2010
Abstract : PURPOSE: Usefulness of abdominal ultrasonography for quantitative estimation of fatty liver by measurement of para- and perirenal sonographic fat thickness (UFT) was investigated. METHODS: Study subjects were 286 patients hospitalized for the treatment of diabetes. These subjects underwent blood chemistry studies, abdominal ultrasonography, and CT. On sonography, the thickness of combined para- and perirenal fat was measured between the kidney and the inner aspect of the abdominal musculature. Measurements on both sides were averaged as the UFT. Fatty liver infiltration was graded on a scale of grade 0 to 3: 0, none; 1, mild; 2, moderate; and 3, severe. With abdominal CT, the ratio of CT attenuation value of the liver to that of the spleen (L/S ratio) was measured. RESULTS: A positive correlation was found between UFT and FL grade or between UFT and L/S ratio (p < 0.0001). Positive correlations were also found between UFT and glutamic pyruvic transaminase (p < 0.05), or cholinesterase (p < 0.0001). CONCLUSION: Measurement of UFT is a useful method for the quantification of fatty liver as well as for the quantification of visceral fat.
ESTHER : Kawasaki_2010_J.Clin.Ultrasound_38_470
PubMedSearch : Kawasaki_2010_J.Clin.Ultrasound_38_470
PubMedID: 20806348

Title : Branched poly(lactide) synthesized by enzymatic polymerization: effects of molecular branches and stereochemistry on enzymatic degradation and alkaline hydrolysis - Numata_2007_Biomacromolecules_8_3115
Author(s) : Numata K , Srivastava RK , Finne-Wistrand A , Albertsson AC , Doi Y , Abe H
Ref : Biomacromolecules , 8 :3115 , 2007
Abstract : In this article the effects of the number of molecular branches (chain ends) and the stereochemistry of poly(lactide)s (PLAs) on the enzymatic degradation and alkaline hydrolysis are studied. Various linear and branched PLAs were synthesized using lipase PS (Pseudomonas fluorescens)-catalyzed ring-opening polymerization (ROP) of lactide monomers having different stereochemistries (L-lactide, D-lactide, and D,L-lactide). Five different alcohols were used as initiators for the ROP, and the monomer-to-initiator molar feed ratio was varied from 10 to 100 and 1000 for each branch in the polymer architecture. The properties of branched PLAs that would affect the enzymatic and alkaline degradations, i.e., the glass transition temperature, the melting temperature, the melting enthalpy, and the advancing contact angle, were determined. The PLA films were degraded using proteinase K or 1.0 M NaOH solution, and the weight loss and changes in the number average molecular weight (Mn) of the polymer were studied during 12 h of degradation. The results suggest that an increase in the number of molecular branches of branched PLAs enhances its enzymatic degradability and alkali hydrolyzability. Moreover, the change in Mn of the branched poly(L-lactide) (PLLA) by alkaline hydrolysis indicated that the decrease in Mn was in the first place dependent on the number of molecular branches and thereafter on the length of the molecular branch of branched PLA. The branched PLLA, poly(D-lactide) (PDLA), and poly(D,L-lactide) (PDLLA) differed in weight loss and change in Mn of the PLA segment during the enzymatic degradation. It is suggested that the branched PDLLA was degraded preferentially by proteinase K.
ESTHER : Numata_2007_Biomacromolecules_8_3115
PubMedSearch : Numata_2007_Biomacromolecules_8_3115
PubMedID: 17722879

Title : Analysis of the mouse transcriptome based on functional annotation of 60,770 full-length cDNAs - Okazaki_2002_Nature_420_563
Author(s) : Okazaki Y , Furuno M , Kasukawa T , Adachi J , Bono H , Kondo S , Nikaido I , Osato N , Saito R , Suzuki H , Yamanaka I , Kiyosawa H , Yagi K , Tomaru Y , Hasegawa Y , Nogami A , Schonbach C , Gojobori T , Baldarelli R , Hill DP , Bult C , Hume DA , Quackenbush J , Schriml LM , Kanapin A , Matsuda H , Batalov S , Beisel KW , Blake JA , Bradt D , Brusic V , Chothia C , Corbani LE , Cousins S , Dalla E , Dragani TA , Fletcher CF , Forrest A , Frazer KS , Gaasterland T , Gariboldi M , Gissi C , Godzik A , Gough J , Grimmond S , Gustincich S , Hirokawa N , Jackson IJ , Jarvis ED , Kanai A , Kawaji H , Kawasawa Y , Kedzierski RM , King BL , Konagaya A , Kurochkin IV , Lee Y , Lenhard B , Lyons PA , Maglott DR , Maltais L , Marchionni L , McKenzie L , Miki H , Nagashima T , Numata K , Okido T , Pavan WJ , Pertea G , Pesole G , Petrovsky N , Pillai R , Pontius JU , Qi D , Ramachandran S , Ravasi T , Reed JC , Reed DJ , Reid J , Ring BZ , Ringwald M , Sandelin A , Schneider C , Semple CA , Setou M , Shimada K , Sultana R , Takenaka Y , Taylor MS , Teasdale RD , Tomita M , Verardo R , Wagner L , Wahlestedt C , Wang Y , Watanabe Y , Wells C , Wilming LG , Wynshaw-Boris A , Yanagisawa M , Yang I , Yang L , Yuan Z , Zavolan M , Zhu Y , Zimmer A , Carninci P , Hayatsu N , Hirozane-Kishikawa T , Konno H , Nakamura M , Sakazume N , Sato K , Shiraki T , Waki K , Kawai J , Aizawa K , Arakawa T , Fukuda S , Hara A , Hashizume W , Imotani K , Ishii Y , Itoh M , Kagawa I , Miyazaki A , Sakai K , Sasaki D , Shibata K , Shinagawa A , Yasunishi A , Yoshino M , Waterston R , Lander ES , Rogers J , Birney E , Hayashizaki Y
Ref : Nature , 420 :563 , 2002
Abstract : Only a small proportion of the mouse genome is transcribed into mature messenger RNA transcripts. There is an international collaborative effort to identify all full-length mRNA transcripts from the mouse, and to ensure that each is represented in a physical collection of clones. Here we report the manual annotation of 60,770 full-length mouse complementary DNA sequences. These are clustered into 33,409 'transcriptional units', contributing 90.1% of a newly established mouse transcriptome database. Of these transcriptional units, 4,258 are new protein-coding and 11,665 are new non-coding messages, indicating that non-coding RNA is a major component of the transcriptome. 41% of all transcriptional units showed evidence of alternative splicing. In protein-coding transcripts, 79% of splice variations altered the protein product. Whole-transcriptome analyses resulted in the identification of 2,431 sense-antisense pairs. The present work, completely supported by physical clones, provides the most comprehensive survey of a mammalian transcriptome so far, and is a valuable resource for functional genomics.
ESTHER : Okazaki_2002_Nature_420_563
PubMedSearch : Okazaki_2002_Nature_420_563
PubMedID: 12466851
Gene_locus related to this paper: mouse-1lipg , mouse-1llip , mouse-1plrp , mouse-3neur , mouse-ABH15 , mouse-abhd4 , mouse-abhd5 , mouse-Abhd8 , mouse-Abhd11 , mouse-abhda , mouse-acot4 , mouse-adcl4 , mouse-AI607300 , mouse-BAAT , mouse-bphl , mouse-C87498 , mouse-Ldah , mouse-Ces1d , mouse-Ces2e , mouse-CMBL , mouse-DGLB , mouse-dpp9 , mouse-ES10 , mouse-F135A , mouse-FASN , mouse-hslip , mouse-hyes , mouse-Kansl3 , mouse-LIPH , mouse-LIPK , mouse-lipli , mouse-LIPM , mouse-lypla1 , mouse-lypla2 , mouse-MEST , mouse-MGLL , mouse-ndr4 , mouse-OVCA2 , mouse-pafa , mouse-pcp , mouse-ppce , mouse-Ppgb , mouse-PPME1 , mouse-q3uuq7 , mouse-Q8BLF1 , mouse-ACOT6 , mouse-Q8C1A9 , mouse-Q9DAI6 , mouse-Q80UX8 , mouse-Q8BGG9 , mouse-Q8C167 , mouse-rbbp9 , mouse-SERHL , mouse-tssp