Histone deacetylase 3 is selectively involved in L3MBTL2-mediated transcriptional repression

Yoo, Jung-Yoon,Choi, Kyung-Chul,Kang, HeeBum,Kim, Young Jun,Lee, Jeongmin,Jun, Woo Jin,Kim, Mi-Jeong,Lee, Yoo-Hyun,Lee, Ok-Hee,Yoon, Ho-Geun Elsevier 2010 FEBS letters Vol.584 No.11

<P><B>Abstract</B></P><P>This is the first report that L(3)mbt-like 2 (L3MBTL2) specifically interacts with the histone deacetylase domain of histone deacetylase 3 (HDAC3) via its MBT domain. Here, we show that L3MBTL2 selectively interacts with HDAC3, but not other class I HDACs. An in vitro peptide-binding assay demonstrated the specific association of HDAC3 with methylated histone-K20 tail and L3MBTL2. Furthermore, depletion of HDAC3 resulted in a decrease of methylated K20-H4, as well as an increase in acetylated histone H3. Consequently, HDAC3 knock-down selectively suppressed L3MBTL2-mediated transcriptional repression. Taken together, our results reveal the concerted action of both HDAC3 and L3MBTL2 in histone deacetylation and methylation-dependent transcriptional repression.</P><P><B>Structured summary</B></P><P>MINT-7719975: <I>L3MBTL2</I> (uniprotkb:Q969R5) and <I>HDAC3</I> (uniprotkb:O15379) <I>colocalize</I> (MI:0403) by <I>fluorescence microscopy</I> (MI:0416)</P><P>MINT-7719941, MINT-7719921: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>binds</I> (MI:0407) to <I>HDAC3</I> (uniprotkb:O15379) by <I>pull down</I> (MI:0096)</P><P>MINT-7719991: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-7719958: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>physically interacts</I> (MI:0915) with <I>HDAC3</I> (uniprotkb:O15379) by <I>anti tag coimmunoprecipitation</I> (MI:0007)</P><P>MINT-7719897: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>two hybrid</I> (MI:0018)</P>

An S-locus receptor-like kinase in plasma membrane interacts with calmodulin in <i>Arabidopsis</i>

Kim, Ho Soo,Jung, Mi Soon,Lee, Kyunghee,Kim, Kyung Eun,Yoo, Jae Hyuk,Kim, Min Chul,Kim, Doh Hoon,Cho, Moo Je,Chung, Woo Sik Elsevier 2009 FEBS letters Vol.583 No.1

<P><B>Abstract</B></P><P>Calmodulin-regulated protein phosphorylation plays a pivotal role in amplifying and diversifying the action of calcium ion. In this study, we identified a calmodulin-binding receptor-like protein kinase (CBRLK1) that was classified into an S-locus RLK family. The plasma membrane localization was determined by the localization of CBRLK1 tagged with a green fluorescence protein. Calmodulin bound specifically to a Ca<SUP>2+</SUP>-dependent calmodulin binding domain in the C-terminus of CBRLK1. The bacterially expressed CBRLK1 kinase domain could autophosphorylate and phosphorylates general kinase substrates, such as myelin basic proteins. The autophosphorylation sites of CBRLK1 were identified by mass spectrometric analysis of phosphopeptides.</P><P><B>Structured summary</B></P><P>MINT-6800947:<I>CBRLK1</I> (uniprotkb:Q9ZT06) and <I>AtCaM2</I> (uniprotkb:P25069) <I>bind</I> (MI:0407) by <I>electrophoretic mobility shift assay</I> (MI:0413)</P><P>MINT-6800966:<I>AtCaM2</I> (uniprotkb:P25069) and <I>CBRLK1</I> (uniprotkb:Q9ZT06) <I>bind</I> (MI:0407) by <I>competition binding</I> (MI:0405)</P><P>MINT-6800930:<I>CBRLK1</I> (uniprotkb:Q9ZT06) <I>binds</I> (MI:0407) to <I>AtCaM2</I> (uniprotkb:P25069) by <I>far Western blotting</I> (MI:0047)</P><P>MINT-6800978:<I>AtCaM2</I> (uniprotkb:P25069) <I>physically interacts</I> (MI:0218) with <I>CBRLK1</I> (uniprotkb:Q9ZT06) by <I>cytoplasmic complementation assay</I> (MI:0228)</P>

Southward shift of the Intertropical Convergence Zone due to Northern Hemisphere cooling at the Oligocene-Miocene boundary

Hyeong, Kiseong,Lee, Jongmin,Seo, Inah,Lee, Mi Jung,Yoo, Chan Min,Khim, Boo-Keun Geological Society of America 2014 Geology Vol.42 No.8

<P>The Mi-1 glaciation (ca. 23 Ma), which marks the Oligocene-Miocene boundary, was an aberrant cooling event that led to a build-up of the Antarctic ice sheet, which reached the near-modern volume (or greater) from its ephemeral or partial existence. An increase of ∼1‰ in the δ<SUP>18</SUP>O of benthic foraminifera during this interval has been attributed to the development of Antarctic ice sheets and deep-water cooling. Without definitive evidence, Northern Hemisphere (NH) glaciation has not been a material consideration for the δ<SUP>18</SUP>O increase. Here we investigate the interhemispheric temperature contrast during Mi-1, with the movement of the Intertropical Convergence Zone (ITCZ) at a site (10°31′N) in the East Pacific (Integrated Ocean Drilling Program Site U1333), to understand NH cooling and the possibility of NH glaciation. The measured <SUP>143</SUP>Nd/<SUP>144</SUP>Nd, <SUP>87</SUP>Sr/<SUP>86</SUP>Sr, and clay mineral compositions of eolian dust fractions indicate unequivocally the deposition of Asian dust during Mi-1, and of Central American and South American dust before and after Mi-1. This is attributed to the southward displacement of the ITCZ over Site U1333 during Mi-1. The ITCZ shifts toward the warmer hemisphere. Thus our results suggest that the cooling during Mi-1 was more significant in the NH than in the Southern Hemisphere, which underwent a sudden expansion of continental ice sheets. Our data call for a forcing mechanism to drive significant NH cooling during this episode. Based on the available data, we propose that the widespread growth of NH ice sheets and/or changes in the production of North Atlantic–origin deep water could be possible causes of the NH cooling at that time.</P>

New polymorphic microsatellite markers in the Korean mi-iuy croaker, $Miichthys$ $miiuy$, and their application to the genetic characterization of wild and farmed populations

An, Hye-Suck,Kim, Eun-Mi,Lee, Jang-Wook,Kim, Dae-Jung,Kim, Yi-Cheong The Korean Society for Integrative Biology 2012 Animal cells and systems Vol.16 No.1

Eighteen new polymorphic microsatellite markers were developed for the Korean mi-iuy croaker ($Miichthys$ $miiuy$, Perciformes, Sciaenidae), and allelic variability was compared between a wild population in Mokpo, Korea, and a hatchery population in Tongyeong, Korea. All loci were amplified readily and demonstrated allelic variability, with the number of alleles ranging from 5 to 37 in the wild population, and from 4 to 12 in the farmed population. The average observed and expected heterozygosities were estimated, respectively, to be 0.74 and 0.78 in the hatchery population samples, and 0.79 and 0.86 in the wild samples. These results indicate lower genetic variability in the hatchery population compared with the wild population, and significant genetic differentiation between the wild population and the hatchery samples ($F_{ST}$=0.058, P<0.001). These microsatellite loci may be valuable for future population genetic studies, monitoring changes in the genetic variation within stocks in a commercial breeding program, conservation genetics, and molecular assisted selective breeding of the mi-iuy croaker in the future.

한국비서자격시험의 개선점과 비교연구

남자현,이미정,이미영,이아영,정해금,최유정,이미숙,전인선,정혜림 이화여자대학교 법정대학 비서학과 1997 비서학연구 Vol.- No.17

낙동강 원수의 생물활성탄 및 오존처리공정에 따른 수질 변화 및 폴리오바이러스의 제거특성

정은영,박홍기,이유정,정종문,정미은,홍용기,장경립,Jung Eun-Young,Park Hong-Ki,Lee You-Jung,Jung Jong-moon,Jung Mi-Eun,Hong Yong-Ki,Jang Kyoung-Lib 한국생명과학회 2005 생명과학회지 Vol.15 No.5

오존처리는 음용수중의 유해한 미생물을 소독하는 처리기술로 주로 이용되고 있으며, 생물활성탄 처리기술 역시 오염물질 제거를 포함한 음용수 제조과정에 여러 가지 이점을 제공한다. 이글의 병행처리는 원수중의 여러 물질을 제거하는데 효과적인 공정으로 간주되고 있다. 본 연구에서는 낙동강 하류의 매리취수장 원수를 사용하여 생물활성탄 정수처리공정 및 오존에 의한 수질 변화와 함께 폴리오바이러스 제거 효율을 조사하였다. 수질인자들은 BAC 여과를 거치면서 $NH^{+}_{4}-N$등을 포함한 모든 항목들은 거의 제거되는 것으로 나타났다. Pilot-plant를 이용한 정수처리공정별 폴리오바이러스 제거실험에서는 전오존 접촉에 의해 $96.8\%$, 침전단계에서$99.3\%$, 여과단계에서 $99.6\%$의 바이러스가 제거되었으며, 후오존을 거친 BAC 여과수 시료에서는 세포배양법과 ICC-PCR 방법에서 바이러스가 $100\%$ 제거되어짐을 확인할 수 있었다. 오존농도에 의한 폴리오바이러스 제거실험 결과 0.4mg/1에서 5분간 접촉되었을 때는 약 $61.1\%$ 이상이, 0.8mg/1에서 10분 이상 접촉시킨 후에는 바이러스의 $100\% $가 불활성화 되어졌음을 알 수 있었다. Ozonation is a disinfection technique of harmful mi-crobes commonly used in the treatment of drinking water. And Biological Activated Carbon (BAC) treatment also provides numerous benefits for drinking water utilities, including removal of micro- pollutants, improved treatment processes. The multiful-stage ozonation and BAC play roles as effective methods for removing several materials in raw water. Water quality variation in Nak dong river and the removal efficiency of viruses by ozonation-BAC process were investigated on pilot scale. During the period of survey, most of water quality parameters including $NH_{4}^{+}-N$ were highly improved after passing through the BAC. The removal efficiency of poliovirus type III in water treatment process using pilot-plant,$ 99.6\% $ of viruses were removed by pre-ozonation, sedimentation and sand filteration process, $ 100\% $ were removed after in BAC filteration step. In the removal survey of viruses by ozonation, ap-proximately $ 61.1\% $ or polioviruses were inactivated by ozone of 0.4 mg/l within 5 min. and $ 100\% $ were inactivated by ozone of 0.8 mg/l over 10 min.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

A Study on Textile Design with Textile CAD

Jung,Hyun Mi (사)한국디지털디자인협의회 2006 (사)한국디지털디자인협의회 conference Vol.2006 No.2

악성 섬유성 조직구종 1예

정미정,정우권,박영립,황규왕,김영근 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.1

Malignant fibrous histiocytoma is the most common soft tissue sarcoma in adult life and shows a mixed proliferation of both fibroblastic and histiocytic cells. Because of its highly variable morphologic pattern, this tumor has often been confused with other sarcomas such as pleomorphic rhabdomyosarcoma and liposarcoma. We report a case of malignant fibrous histiocytoma occurring in a 22-year-old male who presented with a adult's fist-sized mass with several brown colored nodules on the right buttock of 3 years' duration. Histologic findings shows spindle cells arranged in a storiform pattern characteristic of the typical pleomorphic malignant fibrous histiocytoma.

한국어판 정신증상평가척도의 신뢰도와 타당도

정순민,김미경,이정빈,최진환,정봉주,변원탄 大韓神經精神醫學會 2007 신경정신의학 Vol.46 No.3

Objectives : Psychotic Symptom Rating Scale (PSYRATS) is an assessment tool to measure the seventy of different dimen-sions of auditory hallucinations and delusions. The reliability and validity of the Korean version of PSYRATS (K-PSYRATS)were examined in Korean patients with major psychosis. Methods : The inter-rater reliability of the K-PSYRATS was determined from the videotaped interviews of the five Schizoph-renic patients. To measure validity and internal consistency reliability, the 109 patients with auditory hallucinations or delusions were assessed using the K-PSYRATS, Positive and Negative Syndrome Scale (PANSS) and Clinical Global Impression-Se-verity (CGI-S) scale. Results : K-PSYRATS was found to have excellent inter-rater reliability (intra-class correlation coefficient of auditory haliu-cination=0.81, P<.001, intm-class correlation coefficient ofde1usion=0.97, P<.001) and internal consistency reliability (Cron-bach's a of auditory hallucination =0.77, Cronbach's α of delusion =0.76). Significant correlation was found between K-PSY-RATS and positive syndrome subscale of PANSS and CGI. Conclusion : K-PSYRATS is a useful assessment instrument for psychotic symptoms in Korea.