http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Xiao Juan Xing ),( Yong Sheng Tian ),( Ri He Peng ),( Jing Xu ),( Wei Zhao ),( Quan Hong Yao ),( Sheng Sun ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.10
Although a large number of AroA enzymes (EPSPS: 5-enopyruvylshikimate-3-phosphate synthase) have been identified, cloned, and tested for glyphosate resistance, only two AroA variants, derived from Agrobacterium tumefaciens strain CP4 and Zea mays, have been utilized to produce the commercial glyphosate-resistant crops. Here, we have used a PCR-based twostep DNA synthesis method to synthesize an aroA gene (aroAA. metalliredigens) from Alkaliphilus metalliredigens, encoding a new EPSPS. Furthermore, transgenic Arabidopsis with the new aroAA. metalliredigens gene was obtained to confirm the potential of the novel aroA gene in developing glyphosate-resistant crops.
Brevibacterium anseongense sp. nov., isolated from soil of ginseng field
정미선,Xiao-Tian Quan,Muhammad Zubair Siddiqi,Qing-Zhen Liu,김상용,위지향,임완택 한국미생물학회 2018 The journal of microbiology Vol.56 No.10
A Gram-positive, aerobic, non-motile, pale-yellow, and rodshaped bacterium, designated as Gsoil 188T, was isolated from the soil of a ginseng field in Pocheon, South Korea. A phylogenetic analysis based on 16S rRNA gene sequence comparison revealed that the strain formed a distinct lineage within the genus Brevibacterium and was most closely related to B. epidermidis NBRC 14811T (98.4%), B. sediminis FXJ8.269T (98.2%), B. avium NCFB 3055T (98.1%), and B. oceani BBH7T (98.1%), while it shared less than 98.1% identity with the other species of this genus. The DNA G + C content was 68.1 mol%. The predominant quinone was MK-8(H2). The major fatty acids were anteiso-C15:0 and anteiso-C17:0. The cell wall peptidoglycan of strain Gsoil 188T contained meso-diaminopimelic acid. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol, and an unidentified aminolipid. The physiological and biochemical characteristics, low DNA-DNA relatedness values, and taxonomic analysis allowed the differentiation of strain Gsoil 188T from the other recognized species of the genus Brevibacterium. Therefore, strain Gsoil 188T represents a novel species of the genus Brevibacterium, for which the name Brevibacterium anseongense sp. nov. is proposed, with the type strain Gsoil 188T (= KACC 19439T = LMG 30331T).
( Yong-sheng Tian ),( Jing Xu ),( Lei-chen ),( Xiao-yan Fu ),( Ri-he Peng ),( Quan-hong Yao ) 한국미생물생명공학회(구 한국산업미생물학회) 2017 Journal of microbiology and biotechnology Vol.27 No.10
Thermostability is an important property of xylanase because high temperature is required for its applications, such as wood pulp bleaching, baking, and animal feedstuff processing. In this study, XynB from Thermobacillus composti, a moderately thermophilic gram-negative bacterium, was modified via site-directed mutagenesis (based on its 3D structure) to obtain thermostable xylanase, and the properties of this enzyme were analyzed. Results revealed that the half-life of xylanase at 65°C increased from 10 to 50 min after a disulfide bridge was introduced between the α-helix and its adjacent β-sheet at S98 and N145. Further mutation at the side of A153E named XynB-CE in the C-terminal of this α-helix enhanced the half-life of xylanase for 60 min at 65°C. Therefore, the mutant may be utilized for industrial applications.
Qing-Hua Tian,Chun-Gen Wu,Quan-Ping Xiao,Cheng-Jian He,Yi-Feng Gu,Tao Wang,Ming-Hua Li 대한영상의학회 2014 Korean Journal of Radiology Vol.15 No.6
Glucocorticosteroid-induced osteoporosis is the most frequent of all secondary types of osteoporosis, and can increase the risk of vertebral compression fractures (VCFs). There are promising additions to current medical treatment for appropriately selected osteoporotic patients. Few studies have reported on the efficiency of percutaneous vertebroplasty (PVP) or kyphoplasty for whole thoracic and lumbar glucocorticosteroid-induced osteoporotic vertebral compression fractures. We report a case of a 67-year-old man with intractable pain caused by successional VCFs treated by PVP.
Terrabacter ginsengisoli sp. nov., isolated from ginseng cultivating soil
Mei-Fang Jin,Xiao-Tian Quan,주베르,Qing-Zhen Liu,Hong Shan Yu,임완택 한국미생물학회 2018 The journal of microbiology Vol.56 No.5
A Gram-positive, strictly aerobic, nonmotile, yellowish, coccus- rod-shaped bacterium (designated Gsoil 653T) isolated from ginseng cultivating soil was characterized using a polyphasic approach to clarify its taxonomic position. The strain Gsoil 653T exhibited optimal growth at pH 7.0 on R2A agar medium at 30°C. Phylogenetic analysis based on 16S rRNA gene sequence similarities, indicated that Gsoil 653T belongs to the genus Terrabacter of the family Humibacillus, and was closely related to Terrabacter tumescens DSM 20308T (98.9%), Terrabacter carboxydivorans PY2T (98.9%), Terrabacter terrigena ON10T (98.8%), Terrabacter terrae PPLBT (98.6%), and Terrabacter lapilli LR-26T (98.6%). The DNA G + C content was 70.5 mol%. The major quinone was MK-8(H4). The primary polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidyl-ethanolamine. The predominant fatty acids were iso-C15:0, iso-C16:0, iso-C14:0, and anteiso-C15:0, as in the case of genus Terrabacter, thereby supporting the categorization of strain Gsoil 653T. However, the DNA-DNA relatedness between Gsoil 653T and closely related strains of Terrabacter species was low at less than 31%. Moreover, strain Gsoil 653T could be both genotypically and phenotypically distinguished from the recognized species of the genus Terrabacter. This isolate, therefore, represents a novel species, for which the name Terrabacter ginsengisoli sp. nov. is proposed with the type strain Gsoil 653T (= KACC 19444T = LMG 30325T).
Functional Roles of Long Non-coding RNA in Human Breast Cancer
Ye, Ni,Wang, Bin,Quan, Zi-Fang,Cao, San-Jie,Wen, Xin-Tian,Huang, Yong,Huang, Xiao-Bo,Wu, Rui,Ma, Xiao-Ping,Yan, Qi-Gui Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.15
The discovery of long noncoding RNA (LncRNA) changes our view of transcriptional and posttranscriptional regulation of gene expression. With application of new research techniques such as high-throughput sequencing, the biological functions of LncRNAs are gradually becoming to be understood. Multiple studies have shown that LncRNAs serve as carcinogenic factors or tumor suppressors in breast cancer with abnormal expression, prompts the question of whether they have potential value in predicting the stages and survival rate of breast cancer patients, and also as therapeutic targets. Focusing on the latest research data, this review mainly summarizes the tumorigenic mechanisms of certain LncRNAs in breast cancer, in order to provide a theoretical basis for finding safer, more effective treatment of breast cancer at the LncRNA molecular level.
Terrabacter ginsengisoli sp. nov., isolated from ginseng cultivating soil
Jin, Mei-Fang,Quan, Xiao-Tian,Siddiqi, Muhammad Zubair,Liu, Qing-Zhen,Yu, Hong-Shan,Im, Wan-Taek MICROBIOLOGICAL SOCIETY OF KOREA 2018 JOURNAL OF MICROBIOLOGY -SEOUL- Vol.56 No.5
A Gram-positive, strictly aerobic, nonmotile, yellowish, coccus-rod-shaped bacterium (designated Gsoil <TEX>$653^T$</TEX>) isolated from ginseng cultivating soil was characterized using a polyphasic approach to clarify its taxonomic position. The strain Gsoil <TEX>$653^T$</TEX> exhibited optimal growth at pH 7.0 on R2A agar medium at <TEX>$30^{\circ}C$</TEX>. Phylogenetic analysis based on 16S rRNA gene sequence similarities, indicated that Gsoil <TEX>$653^T$</TEX> belongs to the genus Terrabacter of the family Humibacillus, and was closely related to Terrabacter tumescens DSM <TEX>$20308^T$</TEX> (98.9%), Terrabacter carboxydivorans <TEX>$PY2^T$</TEX> (98.9%), Terrabacter terrigena <TEX>$ON10^T$</TEX> (98.8%), Terrabacter terrae <TEX>$PPLB^T$</TEX> (98.6%), and Terrabacter lapilli <TEX>$LR-26^T$</TEX> (98.6%). The DNA G + C content was 70.5 mol%. The major quinone was MK-8(<TEX>$H_4$</TEX>). The primary polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidyl-ethanolamine. The predominant fatty acids were <TEX>$iso-C_{15:0}$</TEX>, <TEX>$iso-C_{16:0}$</TEX>, <TEX>$iso-C_{14:0}$</TEX>, and <TEX>$anteiso-C_{15:0}$</TEX>, as in the case of genus Terrabacter, thereby supporting the categorization of strain Gsoil <TEX>$653^T$</TEX>. However, the DNA-DNA relatedness between Gsoil <TEX>$653^T$</TEX> and closely related strains of Terrabacter species was low at less than 31%. Moreover, strain Gsoil <TEX>$653^T$</TEX> could be both genotypically and phenotypically distinguished from the recognized species of the genus Terrabacter. This isolate, therefore, represents a novel species, for which the name Terrabacter ginsengisoli sp. nov. is proposed with the type strain Gsoil <TEX>$653^T$</TEX> (<TEX>$=KACC\;19444^T=LMG\;30325^T$</TEX>).
Xu, Na,Lei, Zhen,Li, Xiao-Long,Zhang, Jun,Li, Chen,Feng, Guo-Quan,Li, Di-Nuo,Liu, Jing-Yi,Wei, Qiang,Bian, Ting-Ting,Zou, Tian-Yu Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.1
Objectives: To explore the correlation between multi-slice spiral CT (MSCT) perfusion parameters and the expression of vascular endothelial growth factor (VEGF) as well as matrix metalloproteinase-2 (MMP-2) in breast cancer. Methods: Forty five breast cancer patients and 16 patients with benign breast tumor, both confirmed by pathology examination, were enrolled. All underwent MSCT perfusion imaging to obtain perfusion maps and data for parameters including blood flow (BF), blood volume (BV) and permeability surface (PS). Cancer patients did not receive treatment prior to surgery. The expression of VEGF and MMP-2 were examined with both immunohistochemistry and Western blotting. Results: The levels of VEGF and MMP-2 by immunohistochemistry were significantly higher in the breast cancer group (P < 0.01) than the benign tumor group. Relative OD values from Western blotting were also higher in cancer cases (P < 0.05). Similarly, the mean MSCT perfusion parameters (BF, BV, PS) were significantly higher in the breast cancer group (P < 0.01), BF and BV positively correlating with VEGF expression (r = 0.878 and 0.809 respectively, P < 0.01); PS and VEGF and MMP-2 expression were also positively correlated (r= 0.860, 0.786 respectively, P < 0.01). Conclusion: There is a correlation between breast cancer MSCT perfusion parameters and VEGF andMMP-2 expression, which might be useful for detection of breast lesions, qualitative diagnosis of breast cancer, and evaluation of breast cancer treatment.