Pancreatoduodenectomy in Seoul National University Hospital

Lee, Kuhn Uk; Youk, Eui Gon; Lee, Keon-Young

doi:10.1007/978-4-431-68541-8_49

Cited by 39 publications

(67 citation statements)

References 107 publications

(115 reference statements)

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“…S. coelicolor produces two monofunctional catalases: CatA, an H 2 O 2 -inducible major vegetative catalase, and CatB, a stationary phase-specific catalase inducible by osmotic stress (9,10). In addition, two isoforms of catalaseperoxidase have been detected when cells formed aerial mycelium (26). Transient production of catalase-peroxidase also has been observed in other Streptomyces species.…”

mentioning

confidence: 92%

Regulation of the furA and catC Operon, Encoding a Ferric Uptake Regulator Homologue and Catalase-Peroxidase, Respectively, in Streptomyces coelicolor A3(2)

Hahn

Roe

2000

J Bacteriol

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We isolated the catC gene, encoding catalase-peroxidase in Streptomyces coelicolor, using sequence homology with the katG gene from Escherichia coli. Upstream of the catC gene, an open reading frame (furA) encoding a homologue of ferric uptake regulator (Fur) was identified. S1 mapping analysis indicated that the furA gene was cotranscribed with the catC gene. The transcriptional start site of the furA-catC mRNA was mapped to the translation start codon ATG of the furA gene. The putative promoter contains consensus ؊10 and ؊35 elements similar to those recognized by HrdB , the major sigma factor of S. coelicolor. The transcripts were produced maximally at late-exponential phase and decreased at the stationary phase in liquid culture. The change in the amount of mRNA was consistent with that of CatC protein and enzyme activity. When the furA gene was introduced into S. lividans on a multicopy plasmid, the increased production of catC transcripts and protein product at late growth phase was inhibited, implying a role for FurA as the negative regulator of the furA-catC operon. FurA protein bound to its own promoter region between ؊59 and ؊39 nucleotides from the transcription start site.

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mentioning

confidence: 92%

Regulation of the furA and catC Operon, Encoding a Ferric Uptake Regulator Homologue and Catalase-Peroxidase, Respectively, in Streptomyces coelicolor A3(2)

Hahn

Roe

2000

J Bacteriol

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“…The adenine (A) of VP2 start codon was numbered as 1 and the nucleotide just before the A as -1. RT-PCR and sequencing were performed as described previously [26] except the primer sets for sequencing were as follows: P3, P4, VP2-5 0 , VP2-3 0 , VP2-5UTR-F, VP2-3UTR-R, VP2-389F (289-306: 5 0 -AACTACTGCAGGC-TAGTG-3 0 ), and VP2-932R (932-915: 5 0 -TCCAGTTTGAT GGATGTG-3 0 ).…”

Section: Virus Eggs and Chickensmentioning

confidence: 99%

“…Since then, vvIBDVs have been reported in most countries in the world [1]. In Korea, the first outbreak of IBD was reported in 1980 and a typical vvIBDV was first isolated in 1991 [25,26]. AV strains that showed specific antigenic changes were reported in the United States and some other countries, and it was suggested that classical vaccines do not protect chickens from these variants [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Molecular epizootiology of infectious bursal disease (IBD) in Korea

et al. 2009

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We conducted a molecular epizootiological study of infectious bursal disease (IBD) in Korea by analyzing 85 IBD viruses (IBDVs) obtained from vaccinated or unvaccinated flocks between 1980 and 2007. Phylogenetic analysis of the partial nucleotide sequence of the hypervariable region of the VP2 gene (nucleotides 661-1020) and pathogenicity tests revealed more genetic and phenotypic diversity of IBDV in Korea than has been reported previously. We showed that very virulent IBDVs (vvIBDVs) were already present in Korea in 1986. Moreover, vvIBDVs were repeatedly detected in Korean poultry that had been vaccinated, which casts doubt on the IBD vaccine programs. We also identified novel putative antigenic variant (AV)-like IBDV isolates on the basis of their antigenic indices and the presence of amino acid changes (P222S or P222T-A321D) that are known to affect the antigenicity of VP2. These observations suggest that future studies examining the efficacy of conventional vaccines against atrophy of the bursa of Fabricius and vvIBDV shedding may be useful. Moreover, it will be of interest to determine the prevalence of putative Korean antigenic variants and whether these strains exert immunosuppressive effects in vaccinated birds.

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“…As an application, we construct an operator to give a negative answer to a problem posed by W. Y. Lee [10].…”

Section: Proofs Of Theorems 25 26mentioning

confidence: 99%

Operators Similar to Normaloid Operators

Zhu¹,

Li²

2011

Journal of the Korean Mathematical Society

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Abstract. In this paper, the authors investigate the structure of operators similar to normaloid and transloid operators. In particular, we characterize the interior of the set of operators similar to normaloid (transloid, respectively) operators. This gives a concise spectral condition to determine when an operator is similar to a normaloid or transloid operator. Also it is proved that any Hilbert space operator has a compact perturbation with transloid property. This is used to give a negative answer to a problem posed by W. Y. Lee, concerning Weyl's theorem.

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Pancreatoduodenectomy in Seoul National University Hospital

Cited by 39 publications

References 107 publications

Regulation of the furA and catC Operon, Encoding a Ferric Uptake Regulator Homologue and Catalase-Peroxidase, Respectively, in Streptomyces coelicolor A3(2)

Regulation of the furA and catC Operon, Encoding a Ferric Uptake Regulator Homologue and Catalase-Peroxidase, Respectively, in Streptomyces coelicolor A3(2)

Molecular epizootiology of infectious bursal disease (IBD) in Korea

Operators Similar to Normaloid Operators

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