• 제목/요약/키워드: Transcript

검색결과 678건 처리시간 0.019초

Gain of a New Exon by a Lineage-Specific Alu Element-Integration Event in the BCS1L Gene during Primate Evolution

  • Park, Sang-Je;Kim, Young-Hyun;Lee, Sang-Rae;Choe, Se-Hee;Kim, Myung-Jin;Kim, Sun-Uk;Kim, Ji-Su;Sim, Bo-Woong;Song, Bong-Seok;Jeong, Kang-Jin;Jin, Yeung-Bae;Lee, Youngjeon;Park, Young-Ho;Park, Young Il;Huh, Jae-Won;Chang, Kyu-Tae
    • Molecules and Cells
    • /
    • 제38권11호
    • /
    • pp.950-958
    • /
    • 2015
  • BCS1L gene encodes mitochondrial protein and is a member of conserved AAA protein family. This gene is involved in the incorporation of Rieske FeS and Qcr10p into complex III of respiratory chain. In our previous study, AluYRa2-derived alternative transcript in rhesus monkey genome was identified. However, this transcript has not been reported in human genome. In present study, we conducted evolutionary analysis of AluYRa2-exonized transcript with various primate genomic DNAs and cDNAs from humans, rhesus monkeys, and crabeating monkeys. Remarkably, our results show that AluYRa2 element has only been integrated into genomes of Macaca species. This Macaca lineage-specific integration of AluYRa2 element led to exonization event in the first intron region of BCS1L gene by producing a conserved 3' splice site. Intriguingly, in rhesus and crabeating monkeys, more diverse transcript variants by alternative splicing (AS) events, including exon skipping and different 5' splice sites from humans, were identified. Alignment of amino acid sequences revealed that AluYRa2-exonized transcript has short N-terminal peptides. Therefore, AS events play a major role in the generation of various transcripts and proteins during primate evolution. In particular, lineage-specific integration of Alu elements and species-specific Alu-derived exonization events could be important sources of gene diversification in primates.

회재(晦齋) 『중용구경연의(中庸九經衍義)』의 경세론적 이해 (A Confucius Political Economics Based Understanding of the Chungyongkugyongyonui(中庸九經衍義))

  • 김인규
    • 동양고전연구
    • /
    • 제55호
    • /
    • pp.35-58
    • /
    • 2014
  • 이 논문은 회재(晦齋) 이언적(李彦迪, 1491~1553)의 "중용구경연의"를 고찰한 것이다. 주지하다시피 회재는 16세기를 대표하는 사상가 가운데 한 사람으로, 일찍이 조한보(曺漢輔, ?~?) 사이에 벌어졌던 태극논쟁(太極論爭)은 주자성리학(朱子性理學)을 조선에 정착시키는데 큰 역할을 하였으며, 아울러 지치주의(至治主義)의 이론적 체계를 확립한 학자이기도하다. "대학"과 "중용"에 담긴 지치주의 이념을 군주(君主)에게 진헌하고자 저술된 책이 바로 회재의 "대학장구보유"와 "중용구경연의"이다. 회재는 수기(修己)의 도(道)에 속하는 조목에 있어서 "대학"이 "중용"보다 더 체계적이고 자세한 반면에 치인(治人)의 도(道)에 해당하는 조목은 "중용"이 "대학" 보다 더 구체적이라고 하여 '표리(表裏)의 관계'로 파악하고, 이 둘을 함께 보아야만 제왕위치(帝王爲治)의 규모가 갖추어 진다고 하였다. 특히 "중용구경연의"는 송나라 진덕수(眞德秀)의 "대학연의(大學衍義)"와 명나라 구준(丘濬)의 "대학연의보(大學衍義補)"를 모방하여 당시의 군주였던 명종(明宗)으로 하여금 이제 삼왕(二帝三王)의 지치(至治)를 실현시킬 목적으로 저술된 책으로, 이는 퇴계의 "성학십도"와 율곡의 "성학집요"에 많은 영향을 끼쳤다.

태음인(太陰人) 청심연자탕(淸心蓮子湯)의 항(抗)allergy 작용(作用)에 대(對)한 실험적(實驗的) 연구(硏究) (Effects of CheongSimYeonJaTang(CSYJT) on Control of Immune-function in highly purified mouse B cells and Mast cell)

  • 박승찬
    • 사상체질의학회지
    • /
    • 제15권2호
    • /
    • pp.166-179
    • /
    • 2003
  • In order to evaluate the antiallergic effects of CSYJT, studies were done. We measured the cytotoxic activity for cytokines transcript expression, production of IL-4, IgE, $IFN-{\gamma}$, proliferation of B cell in HRF plus anti-CD40mAb plus rIL-4 stimulated murine splenic B cells. and cytokines transcript expression of IgE in Mast cell The results were obtained as follows: 1. CSYJT decreased the expression of IL-4 in mast cell significantly. 2. CSYJT decreased the production of IL-4 significantly. 3. CSYJT decreased the expression of IgE in mast cell significantly. 4. CSYJT decreased the production of IgE significantly. 5. CSYJT increased the appearance of $IFN-{\gamma}$. The facts above prove that CSYJT is effective against the allergy. Thus, I think that we should study on this continuously.

  • PDF

Determination of Tyrosinase mRNA in Melanoma by Reverse Transcription-PCR and Optical Mirror Resonance Biosensor

  • Taeboo Choe;Park, Inchul;Seokil Hong
    • Biotechnology and Bioprocess Engineering:BBE
    • /
    • 제7권4호
    • /
    • pp.212-215
    • /
    • 2002
  • Tyrosinase transcript In the blood Is known as the marker of malignant melanoma and it has been often determined by using reverse transcription-polymerase chain reaction (RT-PCA) . However, after the PCR process, the quantification of amplified CDMA by the gel electrophoresis is not reliable and time-consuming. for this reason, we tried to quantify the PCR product using a cuvette-type biosensor, where the oligonucleotide probe was immobilized on the cuvette surface and the single strand CDMA, the denatured PCH product, was then hybridized onto the immobilized probe to give a response signal. The response was Immediate and takes 15 min to obtain a stable signal. The biosensor was much more sensitive comparing to the gel electrophoresis method. The quantification of PCR product using a cuvette-type biosensor was feasible and rapid.

Cloning and characterization of the psbA Gene from Panax ginseng(Characterization of the psbA Gene from P. ginseng)

  • Lee, Won-Kyu;Tae, Gun-Sik
    • Journal of Photoscience
    • /
    • 제10권3호
    • /
    • pp.245-249
    • /
    • 2003
  • The psbA gene of photo system II was cloned and characterized from the P. ginseng chloroplast. The psbA gene is composed of 1,062 nucleotides. The overall amino acid sequence shows 99% and 98% identities to dicots and monocots of higher plants, respectively. Southern blot analysis revealed that a single copy of the psbA gene existed in the chloroplast genome. Northern blot analysis of the in vivo accumulation of the psbA transcript, after being grown under the different intensities (5%, 10%, 20%, and 100%) of daylight, indicated that the steady-state level of the psbA transcript was not significantly affected by light intensity.

  • PDF

Transcription of Some Early and Late Genes of Bombyx mori Nuclear Polyhedrosis Virus in the Cells

  • Kim, Keun-Young;Eun
    • 한국잠사곤충학회지
    • /
    • 제40권1호
    • /
    • pp.60-62
    • /
    • 1998
  • To understand expression of some early and late genes of Bombyx mori nuclear polyhedrosis virus (BmNPV) in the B. mori-derived BmN cell line, the transcripts were analyzed by polymerase chain reaction with synthetic primers. After infection, the transcript of early genes, which include p35, IE1 and helicase p143, was immediately detected in the infected cells. In addition, the transcript of late genes, which include p10 and polyhedrin, was also detected in just-infected cells. In conclusion, our results revealed that transcripts of early and late genes of BmNPV are immediately expressed from the cells after infection.

  • PDF

Isolation of HRD3 gene, a homologous RAD3 gene from fission yeast Schizosaccharomyces pombe

  • Choi, In-Soon;Jin, Yong-Hwan;Park, Sang-Dai
    • 한국환경성돌연변이발암원학회지
    • /
    • 제16권2호
    • /
    • pp.77-82
    • /
    • 1996
  • The RAD3 gene of Saccharomyces cerevisiae is required for excision repair and is essential for cell viability. RAD3 encoded protein possesses a single stranded DNA-dependent ATPase and DNA-RNA helicase activies. To examine the extent of conservation of structure and function of RAD3 during eukaryotic evolution, we have cloned the RAD3 homolog, HRD3, from the distantly related yeast Schizosaccharomyces pombe. Here, we report the partial cloning and characterization of HRD3 gene (Homologous of RAD3 gene) which was isolated by PCR amplification using conserved domain of Saccharomyces cerevisiae RAD3 gene. Chromosomal DNA isolated from S. pombe had similar restriction patterns to those from S. cerevisiae, as determined by Southern blot analysis. The 2. 8 kb transcript of mRNA was identified by Northern hybridization. The level of transcript did not increase upon UV-irradiation, suggesting that the HRD3 gene in S. pombe is not UV-inducible.

  • PDF

Text-driven Speech Animation with Emotion Control

  • Chae, Wonseok;Kim, Yejin
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • 제14권8호
    • /
    • pp.3473-3487
    • /
    • 2020
  • In this paper, we present a new approach to creating speech animation with emotional expressions using a small set of example models. To generate realistic facial animation, two example models called key visemes and expressions are used for lip-synchronization and facial expressions, respectively. The key visemes represent lip shapes of phonemes such as vowels and consonants while the key expressions represent basic emotions of a face. Our approach utilizes a text-to-speech (TTS) system to create a phonetic transcript for the speech animation. Based on a phonetic transcript, a sequence of speech animation is synthesized by interpolating the corresponding sequence of key visemes. Using an input parameter vector, the key expressions are blended by a method of scattered data interpolation. During the synthesizing process, an importance-based scheme is introduced to combine both lip-synchronization and facial expressions into one animation sequence in real time (over 120Hz). The proposed approach can be applied to diverse types of digital content and applications that use facial animation with high accuracy (over 90%) in speech recognition.

Story of Johnsongrass Mosaic (Poty)virus in Australia

  • Oh, Hae-Young
    • Journal of Life Science
    • /
    • 제12권2호
    • /
    • pp.61-74
    • /
    • 2002
  • One of the major aims in studying plant viruses is to minimise the development of symptoms in infected plants. With the advent of in vitro transcript mediated research on plant viruses, substantial progress has been made. This article describes the biology of a plant specific RNA virus, Johnsongrass mosaic virus (JGMV), important to Australian sorghum and corn agriculture and, in particular, at a molecular level which of the RNA sequences in its genome that make it possible for the virus to move from cell to cell, and eventually spread systemically throughout the entire plant. The JGMV has caused considerable yield losses in maize and sorghum over a number of years in Australia. Incidents where 100% of the crop has been infected are on record. The use of this virus is convenient under laboratory conditions because it can be readily transmitted by mechanical inoculation with infected leaf sap, which obviates the need for maintaining aphid colonies. The JGMV is a single stranded positive sense RNA virus.

  • PDF

CLONING AND LIGHT-DEPENDENT EXPRESSION OF A cDNA FOR PEA CYTOSOLIC FRUCTOSE-1,6-BISPHOSPHATASE

  • Son, Tae-Jong;Hahn, Tae-Ryong
    • Journal of Photoscience
    • /
    • 제4권3호
    • /
    • pp.141-145
    • /
    • 1997
  • Polymerase chain reaction(PCR) was conducted with a pea cDNA library using two primers synthesized from homology analysis of amino acid sequences for animal and plant cytosolic FBPases. A PCR product with 650 bp long was cloned into pGEM-T vector and sequenced. The deduced amino acid sequence of the cDNA fragment was 98, 91, and 85% homologous with those of cytosolic FBPases from spinach, sugarbeet, and sugarcane, respectively. It was 51% homologous with amino acid sequence of FBPase from pea chloroplasts. Northern blot analysis was proceeded with the cDNA clone resulting that 1.2 kb transcript was highly expressed in light-grown pea leaves but almost not expressed in dark-grown etiolated pea seedlings. When peas grown in the light for 10 days were transferred to darkness, the transcript was gradually decreased with dark treatment, indicating that the expression of the enzyme was induced by continuous white light but suppressed by dark treatment. Pea cytosolic FBPase was highly expressed in leaves with trace amounts in stems. but almost not expressed in roots.

  • PDF