http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
생화학,분자생물학 : 한국 토양 환경유래의 N-acyl amino acid synthase 유전자에 의한 대장균 내 항생제 N-Lauroyl tyrosine 생산
여윤수 ( Yun Soo Yeo ),임융호 ( Yoon Ho Lim ),김정봉 ( Jeong Bong Kim ),양정모 ( Jung Mo Yang ),이창묵 ( Chang Muk Lee ),김수진 ( Soo Jin Kim ),박민선 ( Min Seon Park ),구본성 ( Bon Sung Koo ),윤상홍 ( Sang Hong Yoon ) 한국응용생명화학회(구 한국농화학회) 2007 Applied Biological Chemistry (Appl Biol Chem) Vol.50 No.4
반복배열된 토마토 Phenvlalanine ammonia-lvase(PAL X1 , PAL X2) 유전자의 구조해석
여윤수(Yun Soo Yeo),이신우(Shin Woo Lee) 한국응용생명화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.1
We observed the structure of phenylalanine ammonia-lyase gene (PAL) which is one of the best studied plant defense-related genes responding to pathogen infection by producing suberin, lignin, and phytoalexins. In tomato, at least 5 different genetic loci have been identified by genomic southern blot hybridization and nucleotide sequence analyses of partially cloned gene fragments (Lee et al. 1992). However, our results suggest that two other isoforms designated as PAL X1 and PAL X2 are located on the chromosome in tomato plant. Furthermore, the preliminary results obtained from southern blot hybridization analyses of subcloned fragment digested with several restriction endonuclease indicated that PAL X1 and PAL X2 clones contain at least two copies of PAL gene and partial nucleotide sequence analyses of each subcloned fragment with the same primer taken from known nucleotide sequence of PAL5 gene indicated that they are located side by side on the same chromosome.
Phytophthora cambivora KACC 40160으로부터 새로운 elicitin의 분리
여윤수 ( Yun Soo Yeo ),윤상홍 ( Sang Hong Yoon ),배신철 ( Shin Chul Bae ),박인철 ( In Cheol Park ),구본성 ( Bon Sung Koo ),김용환 ( Young Hwan Kim ) 한국응용생명화학회 2003 Applied Biological Chemistry (Appl Biol Chem) Vol.46 No.2
Elicitins, proteinaceous elicitors secreted from Oomycetes fungi (Phytophthora spp. and Pythium spp.), have been known as inducer of hypersensitive response (HR) in incompatible interactions between plant and pathogens. Five elicitins among many Korean Phytophthora species caused the reactions of distal HR in radish, chinese cabbage and some hot pepper cultivars, but not in cucumber and tomato. Because the isolation of elicitin from Phytophthora cambivora hasn`t been reported yet, we have purified a cambivorein, a new member of the elicitin family, from the culture filtrate of Phytophthora cambivora (KACC 40160) by using FPLC (Fast Protein Liquid Chromatography, AKTA) with sepharose S and Sephacryl HR columns. We confinrmed that it induces necrosis activities in some hot pepper cultivars and its molecular weight is about 10 KDa by Tricine-SDS-PAGE. Comparison of amino acid sequences of its N-terminal ends also informed the identification of lysine at the ]3th position, which is characteristic of a kind of basic elicitin isoform (β-elicitin). It also showed that our elicitin is not identical with N-terminal sequences of many eliciting reported from Phytophthora spp..
반복배열된 토마토 phenylalanine ammonia-Iyase(p AL X1, PAL X2) 유전자의 구조해석
이신우,여윤수,Lee, Shin-Woo,Yeo, Yun-Soo 한국응용생명화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.1
토마토의 genome내에는 적어도 5개 이상의 PAL유전자 좌가 존재한다는 사실을 이 등(1992)이 이미 genomic Southern blot hybridization으로 확인하여 보고하였다. 그러나 본 연구에서 제작한 genomic DNA libraries를 대상으로 검색한 결과 기존에 보고된 PAL유전자 이외에 약 15 kb 와 10 kb에 해당하는 큰 EcoRI 단편을 확보 할 수 있었다. 이들 단편을 BamHI, HindIII등 9종의 제한효소를 사용하여 Southern blot hybridization을 행한 결과 PAL X1의 경우는 모든 효소에 대하여 2개의 단편이 hybridization 되었으며, 특히 BamHI으로 절단하여 얻은 3개의 단편중 두 개는 PAL5 유전자의 exon 2 부위에서 취한 oligomer(18 mer)와 primer extension 반응이 진행되어서 약 200 bp의 PAL유전자와 아주 높은 상동성을 갖는 염기서열이 확인되었다. 따라서 PAL X1유전자는 2 copy의 유전자가 나란히 존재하거나 아니면 염색체 재배열이 진행된 것으로 추정된다. 이러한 결과는 적어도 7개 이상의 PAL유전자 좌가 토마토 염색체내에 존재하는 것으로 사료된다. We observed the structure of phenylalanine ammonia-lyase gene (PAL) which is one of the best studied plant defense-related genes responding to pathogen infection by producing suberin, lignin, and phytoalexins. In tomato, at least 5 different genetic loci have been identified by genomic southern blot hybridization and nucleotide sequence analyses of partially cloned gene fragments (Lee et al. 1992). However, our results suggest that two other isoforms designated as PAL X1 and PAL X2 are located on the chromosome in tomato plant. Furthermore, the preliminary results obtained from southern blot hybridization analyses of subcloned fragment digested with several restriction endonuclease indicated that PAL X1 and PAL X2 clones contain at least two copies of PAL gene and partial nucleotide sequence analyses of each subcloned fragment with the same primer taken from known nucleotide sequence of PAL5 gene indicated that they are located side by side on the same chromosome.
대두 철분결합단백질 유전자 발현 형질전환 감자의 감자무름병 방어 증진효과
배신철,여윤수,허성기,황덕주,변명옥,고승주,Bae, Shin-Chul,Yeo, Yun-Soo,Heu, Sung-Gi,Hwang, Duk-Ju,Byun, Myung-Ok,Go, Seung-Joo 한국식물생명공학회 2002 식물생명공학회지 Vol.29 No.4
Ferritin is ubiquitous in bacteria, animals and plants. Ferritin is thought to play two main roles in living cells to provide iron for the synthesis of iron protein such as ferretoxin and cytochromes and to prevent damage from radicals produced by iron/dioxygen interaction. To enhance the resistance of potato to Erwinia carotovora, the soybean ferritin gene was introduced into the potato either under CaMV 35S or hsr203J promoter. Potato transgenic plants were screened by PCR analysis using specific primers to the ferritin gene. Expression of ferritin gene under CaMV 35S and hsr203J promoter in potato transgenic plants was confirmed by northern blot analysis. hsr203J promoter known to pathogen inducible in tobacco drives the induction upon Phytophthora infestan in potato and the transcript level of ferritin gene was extremely high after 24 hours post inoculation. One of transformants under CaMV 35S promoter was increased 2.5 fold than untransformant. Each one of transgenic potato containing gene promoter CaMV 35S and hsr203J-ferrtin fusion exhibited tolerance against potato soft rot. 식물의 항산화력을 증진하여 식물병원균 저항성 작물을 개발하고자, 철분 결합 단백질인 대두의 ferritin 유전자를 CaMV 35S와 hsr203J promoter에 연결하여 감자에 형질전환하였다. PCR및 Northern분석에 의한 형질전환 감자에 ferritin 유전자가 존재하는 것과 이들 유전자 식물체내에서 발현되는 것을 확인하였다. ferritin 유전자를 담배 유래 병원균 특이 발현promoter인 hsr203J와 연결하여 획득된 형질전환 감자 식물체는 감자역병균 접종 후 24시간대에서 전사체 발현량이 가장 많았으며 그 후 줄어드는 경향을 나타내었다. 유전자 도입이 확인된 형질전환체 감자괴경의 철분 함량은 CaMV 35S와 ferritin 유전자 도입 형질전환체가 2.5배, hsr203J promoter와 ferritin 유전자 도입 형질전환체가 1.5배 각각 증가하는 것으로 나타냈다. 또한 이들 형질전환체는 감자 무름병균에 대한 저항성 증진효과를 관찰할 수 있었다.
생화학,분자생물학 : 토양의 DNA로부터 4-Hydroxyphenylpyruvate Dioxygenase 유전자 탐색 및 분리
윤상순 ( Sang Soon Yun ),이정한 ( Jung Han Lee ),김수진 ( Soo Jin Kim ),김삼선 ( Sam Sun Kim ),박인철 ( In Cheol Park ),이미혜 ( Mi Hye Lee ),구본성 ( Bon Sung Koo ),윤상홍 ( Sang Hong Yoon ),여윤수 ( Yun Soo Yeo ) 한국응용생명화학회 2005 Applied Biological Chemistry (Appl Biol Chem) Vol.48 No.4
Chitinase생산 저영양세균의 분리 및 계통분류학적 특성
김수진,김민영,구본성,윤상홍,여윤수,박인철,김윤지,이종화,황경숙,Kim Soo-Jin,Kim Min-Young,Koo Bon-Sung,Yoon San-Hong,Yeo Yun-Soo,Park In-Cheol,Kim Yoon-Ji,Lee Jong-Wha,Whang Kyung-Sook 한국미생물학회 2005 미생물학회지 Vol.41 No.4
인삼근권토양으로부터 분리된 총640 저영양세균 중 유일한 탄소원으로 colloidal chitin을 첨가한 배지에서 투명환을 나타낸 8균주를 선발하였다. 대부분의 균주가 chitin의 형광성 유사체인 4-methylumbelliferyl D-N,N'-diacetylchitobioside (MUF-diNAG)을 분해하였고, CR-42균주의 경우 4-methylumbelliferyl-D-glucosaminide (MUF-NAG)를 분해하였다. 이들 chitinase 생산균주의 16S rDNA 염기서열을 결정하여 계통학적 위치를 확인한 결과 5개의 주요한 계통군: proteobacteria $\gamma-subdivision$ (3균주), proteobacteria $\beta-subdivision$ (1 균주), Actinobacteriaceae (1 균주), Bacillaceae (1 균주) 그리고 Bacteriodetes (2 균주)로 분류되었다. 이들 분리균주 중 WR164와 CR18 균주는 16S rDNA염기서열의 유사도가 미배양 및 미동정 등록균주와 $97\%$ 미만으로 나타나 신규미생물로 제안할 수 있는 균주로 예상되었다. 한편 CR2와 CR75 chitinase 생산균주는 인삼 탄저 병원균인 Colletotrichum gloeosporioides의 생장을 저해하는 것으로 나타났다. Many isolates from soil of Korean ginseng rhizosphere did not show remarkable growth on full strength of the conventional nutrient broth (NB medium) but grew on its 100-fold dilution (DNB medium). Six hundred-forty strains were isolated as oligotrophic bacteria. In the course of screening for new bioactive compounds from oligotrophic bacteria from soil, 8 strains which had appeared to form of clear zone on a medium containing colloidal chitin as a sole carbon source were selected for further studies. Strain CR42 hydrolyzed a fluorogenic analogue of chitin, 4-methylumbelliferyl-D-glucosaminide (MUF-NAG) . Mo st of the culture supernatant of these isolates hydrolyzed 4-methylumbelliferyl-D-N,N'-diacetylchitobioside (MUF-diNAG). The isolates were heterogeneous and categorized to gamma- and beta-proteobacteria, Bacillaceae, Actinobactepia, and Bacteroides by 16S rRNA analysis. Two strains, WR164 and CR18, had a 16S rRNA sequence of $95-96\%$ identical to uncultured bacteria. It was observed that CR2 and CR75 could inhibit the growth of Colletotrichum gloeosporioides with hyphal extention-inhibition assay on PDA plate supplemented with $1\%$ colloidal chitin.
이소영(So-Young Lee),여윤수(Yunsoo Yeo),박수윤(Soo-Yun Park),오선우(Seon-Woo Oh),윤은경(Eun Kyung Yoon),신공식(Kong-Sik Shin),우희종(Hee-Jong Woo),임명호(Myung-Ho Lim) 한국육종학회 2015 한국육종학회지 Vol.47 No.3
In order to assess the substantial equivalence of two varieties of genetically modified rice, herbicide-tolerant Ab rice and the insect-resistant Bt rice, to the non-GM Dongjin-byeo cultivar. We analyzed the compositions and contents of the proximate, amino acids, minerals, fatty acids, vitamins, and anti-nutrients in their unpolished grains using t-test (p<0.05). A comparison of fatty acids compositions showed that the levels of stearic acid and arachidonic acid in Ab rice and those of myristic, palmitic, oleic, linoleic, and gadoleic acid in Bt rice were different significantly from the corresponding levels in Dongjin-byeo. Vitamin content did not differ between Bt and Dongjin-byeo, but the content of vitamins B1, B7, and E in Ab rice differed from that in Dongjin-byeo. Iron content in Ab and Bt rice was 2 times higher than that in Dongjin-byeo, although it was within the reference range set by Codex. The amount of the anti-nutrient trypsin inhibitor was 0.1 TIU/mg in the unpolished grain of all three rice varieties examined. Of the 47 components analyzed, 17 were significantly different among the three rice varieties; however, most of these differences were within the Codex reference range for commercial rice. Overall, it was confirmed that both Bt and Ab rice are substantially equivalent to the Dongjin-byeo and other commercial varieties of rice.