• 제목/요약/키워드: ${\beta}$ Tubulin

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Nucleotide Sequence of ${\beta}-tubulin$ Gene from the Soft Coral Scleronephthya gracillimum $(K\ddot{u}kenthal)$

  • Yum, Seung-Shic;Woo, Seon-Ock;Chang, Man;Lee, Taek-Kyun;Song, Jun-Im
    • Ocean Science Journal
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    • 제40권1호
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    • pp.55-59
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    • 2005
  • We cloned the complete cDNA of the ${\beta}-bubulin$ from the soft coral, Scleronephthya gracillimum $(K\ddot{u}kenthal)$ (Alcyonacea, Octocorallia, Anthozoa, Cnidaria), via the random sequencing of a cDNA library and the 5'-rapid amplification of cDNA end (RACE) technique. The full-length cDNA of the S. gracillimum ${\beta}-tubulin$ comprised 1541 bp, not including the poly $A^+$ stretch, also contained a complete open reading frame, which codes for a total of 445 amino acids. The amino acid residues 16402 appeared to be in a state of conservation in a variety of animals. Northern blot analysis clearly demonstrated that the sequence we have obtained is, indeed, the full-length cDNA of the ${\beta}-bubulin$ gene in S. gracillimum.

Morphological and Genetic Characterization of Penicillium spp. associated with post - harvest decay of fruits. (oral)

  • Oh, S.Y.;Yu, S.H.
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.115.1-115
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    • 2003
  • Post-harvest decay, caused by Penicillium spp. is a serious problem of fruits worldwide. Morphological characteristics and molecular markers were used to characterize 22 Penicillium isolates from apples, 18 isolates from pears, 60 from oranges and 18 from grapes and 23reference isolates representing related Penicillium spp. to assess their diversity and resolve their taxonomy. Based on morphological and physiological characteristics, the isolates were grouped as identical or very similar to P. digitatum, P. italicum, P. ulaiense or very similar to P. crustosum, P. expansum, P. solitum and unidentified Penicillium spp. Based on sequence comparisons of ITS region, variable site were presented within and among the species, but there variation were not correlated with the species. Cluster analyses of AP-PCR fragment patterns using UP and L45 primer and the -tubulin gene sequence, the Penicillium species were segregated into distinct groups. Particularly. the -tubulin partial sequence data provided support for species concepts based on morphological and physiological characteristics.

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Two Species of Penicillium Associated with Blue Mold of Yam in Korea

  • Kim, Won-Ki;Hwang, Yong-Soo;Yu, Seung-Hun
    • Mycobiology
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    • 제36권4호
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    • pp.217-221
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    • 2008
  • During 2007 survey of post-harvest diseases of yam performed in May and June, severe tuber loss caused by blue mold was observed in Iksan, Cheonbuk Province. Two species of Penicillium were isolated from the infected tubers. Based on $\beta$-tubulin gene sequence analysis, and cultural and morphological characteristics, the isolates were identified as Penicillium sclerotigenum and P. polonicum. P. sclerotigenum, which is a novel to Korea, is presently described and illustrated.

Characterization of a Sapstaining Fungus, Ophiostoma floccosum, Isolated from the Sapwood of Pinus thunbergii in Korea

  • Yun, Yeo-Hong;Hyun, Min-Woo;Suh, Dong-Yeon;Kim, Seong-Hwan
    • Mycobiology
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    • 제37권1호
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    • pp.5-9
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    • 2009
  • An Ophiostoma fungus was isolated from a stump of Pinus thunbergii in a forest on the West coast of Korea. Microscopic analysis using a light microscope, a stereo microscope, and a scanning electron microscope revealed that it had morphological features of Pesotum and Sporothix synanarmorphs. Based on the $\beta$-tubulin gene sequence analysis, the fungus was identified as the anamorph of Ophiostoma floccosum. Mycological properties of the species including its growth properties on different culture media were described.

Two New Records of Penicillium Associated with Blue Moldy Bulbs of Lily in Korea

  • Kim, Won-Ki;Park, Myung-Soo;Hahm, Soo-Sang;Yu, Seung-Hun
    • Mycobiology
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    • 제34권4호
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    • pp.176-179
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    • 2006
  • Two new records of Penicillium from blue moldy bulbs of lily are reported in Korea. The Korean isolates of P. albocoremium (Frisvad) Frisvad and P. tulipae Overy and Frisvad were phylogenetically identical to the reference species based on DNA sequence of the ${\beta}-tubulin$ gene. P. albocoremium and P. tulipae are described and illustrated.

Marine Athrinium spp. Isolated from Sargassum sp. (Brown Algae) in Jeju Island and Unrecorded Species in Korea

  • Jang, Seokyoon;Hong, Joo-Hyun;Heo, Young Mok;Kim, Jae-Jin
    • 한국균학회지
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    • 제44권4호
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    • pp.259-262
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    • 2016
  • Arthrinium (Ascomycota, Apiosporaceae) is a major marine fungal genus. Three Arthrinium species were reported previously, but not fully described. We isolated the two species A. arundinis and A. saccharicola from Sargassum sp. brown algae in Jeju Island, Korea. These species have not been previously reported in Korea. We described these species in detail and performed a phylogenetic analysis based on the nucleotide sequences of the EF1-${\alpha}$ and ${\beta}$-tubulin genes.

HIV gp41의 세포내 부분과 상호작용하는 단백질 유전자의 분리 (Isolation of the Gene for HIV-1 gp41 Interacting Protein)

  • 김은미;김정우
    • 자연과학논문집
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    • 제10권1호
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    • pp.27-32
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    • 1998
  • HIV-1 gp41의 세포내 부분과 상호작용하는 단백질 유전자를 분리할 목적으로 yeast two hybrid system을 사용하여 검색하였다. 전체 $1.4 \times 10^6 colony를 검색하여 최종적으로 20개의 colony를 얻었다. 이들 colony로부터 분리된 유전자의 염기배열을 결정하여 본 결과, acidic ribosomal protein P0, beta tubulin, alpha catenin등의 세가지 종류임을 밝혔다. 이들은 yeast system 내에서 매우 특이적으로 gp41과 상호작용하고 있음을 알았다.

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First Report of Anthracnose Caused by Colletotrichum fioriniae on Chinese Matrimony Vine in Korea

  • Oo, May Moe;Tweneboah, Solomon;Oh, Sang-Keun
    • Mycobiology
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    • 제44권4호
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    • pp.325-329
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    • 2016
  • A fungus, Colletotrichum fioriniae, was isolated for the first time from fruits of Chinese matrimony vine (Lycium chinense Mill.) in Korea. It was classified as C. fioriniae based on the morphological characteristics and nucleotide sequence of glyceraldehyde-3-phosphate-dehydrogenase and ${\beta}-tubulin$. To the best of our knowledge, this is the first report of C. fioriniae causing anthracnose of Chinese matrimony vine in Korea.

소나무 침엽에서 분리된 3종의 국내 미기록 내생균 (Three Unreported Endophytic Fungi Isolated from Conifer Leaves of Pinus densiflora in Korea)

  • 박혁;엄안흠
    • 한국균학회지
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    • 제47권1호
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    • pp.35-42
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    • 2019
  • 본 연구에서는 전북 부안군에 서식하는 소나무의 침엽에서 내생균을 분리하였다. 분리된 균주는 internal transcribed spacer 영역, rDNA의 large subunit 영역, beta-tubulin 영역의 DNA 염기서열을 분석하여 동정하였다. 연구 과정에서 3종의 국내 미기록 내생균 균주를 확인하였으며, 확인된 종은 Paracamarosporiumhawaiiense, Tubakia dryina, Zasmidiumfructigenum이다. 확인된 미기록 균주의 형태적 특성 및 계통적 분석의 결과에 대해 서술하였다.

CSE1L/CAS, a microtubule-associated protein, inhibits taxol (paclitaxel)-induced apoptosis but enhances cancer cell apoptosis induced by various chemotherapeutic drugs

  • Liao, Ching-Fong;Luo, Shue-Fen;Shen, Tzu-Yun;Lin, Chin-Huang;Chien, Jung-Tsun;Du, Shin-Yi;Jiang, Ming-Chung
    • BMB Reports
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    • 제41권3호
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    • pp.210-216
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    • 2008
  • CSE1L/CAS, a microtubule-associated, cellular apoptosis susceptibility protein, is highly expressed in various cancers. Microtubules are the target of paclitaxel-induced apoptosis. We studied the effects of increased or reduced CAS expression on cancer cell apoptosis induced by chemotherapeutic drugs including paclitaxel. Our results showed that CAS overexpression enhanced apoptosis induced by doxorubicin, 5-fluorour-acil, cisplatin, and tamoxifen, but inhibited paclitaxel-induced apoptosis of cancer cells. Reductions in CAS produced opposite results. CAS overexpression enhanced p53 accumulation induced by doxorubicin, 5-fluorouracil, cisplatin, tamoxifen, and etoposide. CAS was associated with $\alpha$-tubulin and $\beta$-tubulin and enhanced the association between $\alpha$-tubulin and $\beta$-tubulin. Paclitaxel can induce G2/M phase cell cycle arrest and microtubule aster formation during apoptosis induction, but CAS overexpression reduced paclitaxel-induced G2/M phase cell cycle arrest and microtubule aster formation. Our results indicate that CAS may play an important role in regulating the cytotoxicities of chemotherapeutic drugs used in cancer chemotherapy against cancer cells.