• 제목/요약/키워드: PUT

검색결과 6,043건 처리시간 0.03초

Regulatory Characteristics of the Vibrio vulnificus putAP Operon Encoding Proline Dehydrogenase and Proline Permease

  • Lee Jeong-Hyun;Jeong So-Young;Choi Sang-Ho
    • Journal of Microbiology and Biotechnology
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    • 제16권8호
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    • pp.1285-1291
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    • 2006
  • The proline utilization (put) operon of Vibrio vulnificus consists of the putAP genes encoding a proline dehydrogenase and proline permease. The result of put-lux transcriptional fusion analysis suggests that the V vulnificus putAP operon is not autoregulated by the PutA protein. A putR null mutation decreased proline dehydrogenase activity and the level of the put transcripts, indicating that transcription of putAP is under the positive control of PutR. The deduced amino acid sequence of the putR was similar to those reported from other bacteria with high levels of identity. Chromatin IP and GST pull-down assays revealed that PutR specifically binds to the putAP promoter region in vivo, and interacts with CRP in vitro. Taken together, the results suggested that PutR exerts its effect on putAP expression by directly interacting with CRP bound to the upstream region of P$_{put}$.

Characterization of two plasma membrane protein 3 genes (PutPMP3) from the alkali grass, Puccinellia tenuiflora, and functional comparison of the rice homologues, OsLti6a/b from rice

  • Chang-Qing, Zhang;Shunsaku, Nishiuchi;Shenkui, Liu;Tetsuo, Takano
    • BMB Reports
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    • 제41권6호
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    • pp.448-454
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    • 2008
  • Two full-length cDNAs, PutPMP3-1 and PutPMP3-2, encoding PMP3 family proteins were isolated from Puccinellia tenuiflora, a monocotyledonous halophyte. Expression of both genes was induced by low temperature, salt stress, dehydration, ABA, and $NaHCO_3$. Transcripts of PutPMP3-2 were more strongly induced by these stresses relative to those of PutPMP3-1, particularly under low temperature and dehydration conditions. Expression of PutPMP3-1 and PutPMP3-2 in yeast mutants lacking the PMP3 gene can functionally complement the membrane hyper-polarization and salt sensitivity phenotypes resulting from PMP3 deletion. To compare the functions of PutPMP3-1 and PutPMP3-2, the orthologous genes in rice (OsLti6a and OsLti6b) were isolated. Both OsLti6a and OsLti6b could functionally complement the loss of PMP3 in yeast. PutPMP3-2 and OsLti6a were more effective in reversing membrane hyperpolarization than PutPMP3-1 and OsLti6b. However, the four yeast transformants each showed similar levels of salt tolerance. These results imply that these PMP3 family members don't function identically under different stress tolerance conditions.

봄무우 유식물의 자엽과 하배축에서 저온처리동안 Polyamine 농도 변화의 분석 (Analysis of the Change of Polyamine during the Cold Treatment in Spring Radish Young Cotyledons and Hypocotyls)

  • 이성창;박재원;조봉희
    • 분석과학
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    • 제12권1호
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    • pp.75-79
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    • 1999
  • 봄무우 유식물의 자엽과 하배축에서 저온처리동안 변화하는 polyamine(PA)의 농도를 분석하고, PA이 저온 스트레스와 관련이 있는지를 분석하였다. 자엽에서 저온 스트레스동안 putrescine(PUT)의 농도가 증가되었고, 전반적으로 PUT와 spermidine(SPD) 농도의 변화가 심하였다. 따라서 PUT와 SPD는 저온 스트레스의 조건하에서 합성되거나 또는 유리된 것이다. 그러나 spermine(SPM)의 농도에는 거의 변화가 없었다. 하배축의 대조구에는 SPD만이 존재하고, 저온 스트레스를 주면, 유리된 PA의 농다가 증가되었고, 지속된 저온 스트레스동안 PA의 농도가 급속히 감소되었다. 하배축은 일반적으로 저온처리에 매우 예민성을 나타내는 것으로보아, 자엽과 비교해서 세포내에 PA의 농도가 낮기 때문인 것으로 판단된다. 자엽에서 PUT과 SPD가 저온 스트레스의 저항력에 관여하고, 하배축에서는 PA이 저온 스트레스에 대한 저항력의 증대와 아무 관련이 없는 것으로 사료된다. 이상의 결과로 PUT와 SPD는 저온 스트레스에 대항하여 저항력을 증대시키는 것으로 판단된다.

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농작업자의 생리반응으로 본 착용식 의자의 활용 효과 (Effects of Using convenient Tool (put- on - style - stool) on Farm Worker′s Physiological Responses)

  • 최정화;설향;류관희
    • 한국농촌생활과학회지
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    • 제8권1호
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    • pp.1-5
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    • 1997
  • In this study we tried to examine the efficiency of the agricultural convenient tool (put-on-style-stool) by observing subjects'physiological responses. For this we measured subjects' heart rate, oxygen consumption, blood lactate level, mean skin temperature and rectal temperature. The results of this study are as follows; Heart rate was 75$\pm$2 beats/min with the put-on-style-stool and 78$\pm$2 beats/min without it (P<0.01). Oxygen consumption was 3.88$\pm$1.90 $m\ell$/kg/min with the Put-on-style-stool and 5. 06$\pm$0.40 $m\ell$/kg/min without it (P<0.05). Blood lactate level was 2.39$\pm$0.64 mmol with the put-on-style-stool and 3.38$\pm$0.45 mmol without it (P<0.05). Mean skin temperature was lower but rectal temperature was higher with than without the put- on - style - stool (P<0.05 and P<0.01 respectively) So, using the put-on-style-stool was evaluated positively in farmer's work.

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Identification and Functional Analysis of the putAP Genes Encoding Vibrio vulnificus Proline Dehydrogenase and Proline Permease

  • Kim, Hye-Jin;Lee, Jeong-Hyun;Rhee, Jee-Eun;Jeong, Hye-Sook;Choi, Hyun-Kyung;Chung, Hee-Jong;Ryu, Sang-Ryeol;Choi, Sang-Ho
    • Journal of Microbiology and Biotechnology
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    • 제12권2호
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    • pp.318-326
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    • 2002
  • The pathogenic marine bacterium Vibrio vulnificus is the causative agent of food-borne diseases such as life-threatening septicemia. To better understand this organism's strategies to survive osmotic stress, a mutant that was more sensitive to high osmolarity was screened from a library of mutants constructed by a random transposon mutagenesis. By a transposon-tagging method, putAP genes encoding a proline dehydrogenase and a proline permease were identified and cloned from V. vulnificus. The amino acid sequences deduced from nucleotide sequences of putAP from V. vulnificus were 38 to $59\%$ similar to those of PutA and PutP reported from other Enterobacteriaceae. Functions of putAP genes were assessed by the construction of mutants, whose putAP genes were inactivated by allelic exchanges. When proline as the sole carbon or nitrogen source was used, the putA mutant was not able to grow to the substantial level, revealing the proline dehydrogenase is the only enzyme for metabolic conversion of proline into other amino acids. Although the growth rate of the putP mutant on proline as the sole carbon or nitrogen source was significantly reduced, the mutant still grew. This indicated that at least one more proline permease is produced by V. vulnificus. The putP mutant decreased approximately $2-log_10$ CFU/ml after a hyperosmotic challenge, while the parent strain decreased approximately $l-log_10$ CFU/ml. This result suggests that the gene product of putP contributes to the osmotic tolerance of V. vulnificus.

Put to Light 시스템의 통로 수가 분류 생산성에 미치는 영향 (The Impact of Assorting Performance by the Number of Aisles in Put to Light System)

  • 유강철;양광모;강경식
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2011년도 춘계학술대회
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    • pp.229-242
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    • 2011
  • The assorting process in distribution center is one of the most difficult and time-consuming process. The improvement of assorting productivity is a core element which decides efficiency of a distribution center. The time to shipping from receiving depends on assorting such as sorting by customer. To enhance efficiency of assorting typically uses the put to light system composed of computer and digital indicator etc. Generally the layout of put to light system has been performed rather than scientific analysis by a common experience. Therefore, this study analyzes the impact of assorting performance by the number of aisle in assorting process of put to light system.

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MFSFET의 신경회로망 응용을 위한 CUJT와 PUT 소자를 이용한 발진 회로에 관한 연구 (Study on Oscillation Circuit Using CUJT and PUT Device for Application of MFSFET′s Neural Network)

  • 강이구;장원준;장석민;성만영
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1998년도 춘계학술대회 논문집
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    • pp.55-58
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    • 1998
  • Recently, neural networks with self-adaptability like human brain have attracted much attention. It is desirable for the neuron-function to be implemented by exclusive hardware system on account of huge quantity in calculation. We have proposed a novel neuro-device composed of a MFSFET(ferroelectric gate FET) and oscillation circuit with CUJT(complimentary unijuction transistor) and PUT(programmable unijuction transistor). However, it is difficult to preserve ferroelectricity on Si due to existence of interfacial traps and/or interdiffusion of the constitutent elements, although there are a few reports on good MFS devices. In this paper, we have simulated CUJT and PUT devices instead of fabricating them and composed oscillation circuit. Finally, we have resented, as an approach to the MFSFET neuron circuit, adaptive learning function and characterized the elementary operation properties of the pulse oscillation circuit.

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Option Strategies: An Analysis of Naked Put Writing

  • Lekvin Brent J.;Tiwari Ashish
    • 재무관리논총
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    • 제3권2호
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    • pp.329-364
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    • 1996
  • Writing naked put options is a strategy employed either as a speculation to capture premium income, or as a method of placing a limit order to buy the underlying at the strike price in return for premium received. Using a Monte Carlo simulation, twenty thousand equity prices are generated under known volatility and return parameters. A binomial tree is constructed using the same volatility and return parameters. Put options on these 'equities' are valued with the binomial methodology. The performance of various put writing strategies is evaluated on a risk-adjusted basis. Evidence presented suggests that the judicious use of put options may enhance returns during portfolio construction.

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서부경남지방의 전통혼례에 관한 민속학적 연구 - 1920~1950년대를 중심으로 - (A Study of Folklore on the Traditional Wedding of the West Gyeong Nam District - Focused on 1920s~1950s -)

  • 정복남
    • 복식문화연구
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    • 제8권6호
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    • pp.871-886
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    • 2000
  • The purpose of this study is to understand the culture on the Traditional Wedding of the West Gyeong Nam District. The traditional wedding was characterized that the bridegroom visited his bride's house accompanied by his honored guests(上客) and the marriage ceremony was to be held in day time, and then the bridegroom became a son-in-law and stayed with the family for a few days. The bridegroom returned to his home, leaving his bride behind. After a certain period, the bride came to her husband's home as a daughter-in-law. The Traditional Wedding costume of the bridegroom were Samo-Gwandae. The coat (outside uniform) was blue Danryeong ornamented with two cranes figured Hyong-Bae and Heukgackdae. In case Samo-Gwandae was not available, Dopo or Durumakie could be substituted and they put on shoes in this case. A bridegroom put on Mokhwa his feet and under the Samo, and he also put on Nambawie or Bokguen. He put on Dopo or Haeng-eui(行衣) or Durumaki under the blue Danryeong. The bride put on Wonsam and Chokduri or Hwagwan on her hair. In case Wonsam was not available, Chima Jogori style or imitational Wonsam, which was roughly sewed with red cloth and blue cloth contained in the Honsuham (Box of wedding treasure), could be substituted. She put on Hyang-guen to protect her body against the coldness and to hide her face.

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현행(現行) 수의(壽衣) 착의법(着衣法) 관(關) 연구(硏究) (A Study about Current Putting on a Shroud)

  • 남민기;백영자
    • 패션비즈니스
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    • 제3권2호
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    • pp.85-90
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    • 1999
  • A shroud is clothes for giving a dead person a bath and being finely dressed:though our routine clothes have been western, putting on a shroud has been kept comparatively well as a tradition of a conventional ceremony garments. This study is about the current using of dressing a shroud, and for presenting foundations of a way about dressing a shroud in order to make the most of this by everyone, therefore this research will be worthwhile to preserve the traditional custom of giving a dead person a bath and being finely dressed. 1. We must confirm the death of a person before we do Su-Si for controlling rightly a corse. Su-Si is ways of changing a clean clothes after bathing the dead person, tieing up hands, feet and ankles with a string, filling up a mouth, a nose and ears with a wad of cotton, laying down the dead person with his head toward east, and setting up a screen after covering the dead person with a bed sheet. 2. Here are processes of putting on a shroud. After the day of death, first of all, you must untie the string to control rightly a corpse, take off the clothes, and give a dead man a bath. You trim the dead person's fingernails and toenails, put them in O-nang, then put his hands and feet in five pouches, finally put feet in korean socks and wrap with Ak-su. You put a underwear in a overwear in order to put on the clothes easily, and then put on an upper garments after putting on trousers. And put on Sb-sin After you wash the dead person's face and his hair, you put gems and raw rice in his mouth, wrap head with cotton fabrics, and put hairs into five pouches, then put on a headgear which is filled with five pouches. 3. You tie up with hem cloth the dead person dressed a shroud after wrapping with Dae-ryum-km and So-ryumkm. 4. After you encoffin the dead person, you weave coffin strings with cotton fabrics in order to lift up the coffin easily, and lay down a red fabrics having white letters about the dead person's name or social position onto the coffin, then cover the coffin with a coffin cover : finally you leave the coffin at the former place and set up screen.

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