• Title/Summary/Keyword: E3

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Apo E 유전자 변이형이 혈청지질 및 유리아미노산 농도에 미치는 영향 (Effects of Apo E Polymorphism on the Plasma Lipid Profiles and Free Amino Acids in Korean Women)

  • 이명숙;박태선
    • 한국식품영양과학회지
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    • 제28권1호
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    • pp.225-232
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    • 1999
  • Apo E polymorphism(e2, e3, e4) was among the first reported genetic polymorphism that explained part of the normal variation in plasma cholesterol concentrations. Among 62 normolipidemic healthy females, aged 19 up to 22 years, the relative frequencies of E3/3 was 0.806(n=50), E3/2 was 0.081(n=5), E3/4 allele was 0.113(n=7), and no E2/2, E2/4 and E4/4 were found. Based on the five samples of E2 allele, five subjects were randomly selected by E3 and E4 groups for the study of effects of apo E polymorphism on the distribution of serum lipid and amino acids profiles. No differences in the anthro pometric data among apo E isomers were found, otherwise the pulsation was higher in E4 than that in the others. There were no differences in plasma total HDL , HDL3 , HDL2 & LDL cholesterol, and apo A I concentrations. However, phenotype means significantly rank E2>E3>E4 allele in average TG levels(p=0.014), and rank E4>E3>E2 in total cholesterol levels(p=0.011). Atherogenic index(AI) such as lipoproteins was significantly increased in E2 & E4 than that in E3(p=0.045). Subjects with E3/2 allele had significantly higher concentrations of glutamine, phosphoserine and taurine, while subjects with E3/4 allele showed significantly lower concentrations of arginine and am inobutyrate and elevated level of phosphoserine in plasma com pared to those of E3/3 allele. Higher level of plasma taurine in subjects with E3/2 or E3/4 allele appears to be related to the elevated level of plasma total and LDL cholesterol concentrations compared to those of E3/3 allele.

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Studies on the Distribution of Plasma Lipid Profiles and Body Fatness According to Apo E Polymorphism in Normolipidemic Korean Women

  • Lee, Myoung-Sook
    • Preventive Nutrition and Food Science
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    • 제2권4호
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    • pp.338-347
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    • 1997
  • Apo E polymorphism(e2, e3, e4) was among the first reported genetic polymorphism that explained part of the normal vairation in plasma cholesterol concentrations. Both alleles E2 and E4 are significantly more frequent in patients with mixed forms of hyperlipidemia and contribute on the observed differences in CHD risk among different populations. Effects of apo E polymorphism on the distribution of plasma lipid profiles were studied in 89 normolipidemic healthy females, aged 19 up to 22 years. The relative frequencies of E3/3 was 0.787, E3/2 was 0.101, E3/4 allele was 0.112 and no E2/2, E2/4 and E4/4 were found. Weight, height and %LBM were elevated in E2 than those in E3&E4. No differences in the blood pressure among apo E isomers were found, otherwise the pulsation was higher in E4 than that in the others. There were no differences in plasma total-, total DL-, HDL$_3$-, HDL$_2$ cholesterol, apo B-100 and apo A-I, However, phenotype means rank E3/2>E3/3>E3/4 in average TG levels(p<0.0001) significantly, and rank E3/4>E3/3>E3/2 in LDL cholesterol levels. These results were related to the correlation between atherogenic indiced (AI) such as LDL/HDL, (TC-HDL)/HDL, HDL$_3$/HDL$_2$. The ratio of HDL$_3$& HDL$_2$was significantly increased in E2 & E4 than that in E3(P=0.043). LCAT activity was not different between E2 and E3 but was highly increased in E4 (p<0.0001 among apo E isomers), but CETP was not different. Since the negative correlation between LCAT and CETP in apo E2(r=-0.491) was stronger than that in apo E3, E2 allele impacts the clearance of plasma apo E mediated lipoproteins. In conclusion firstly, E4 mediated alteration through LDL or E receptors results in lower TG or higher $\beta$-lipoprotein levels and E2 shows reciprocal effects of E4, respectively. Second, E4 allele was more atherogenic than E2 allele because the higher levels of AI such as HDL$_3$/HDL$_2$ were criticized.

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광학활성 코발트 (III) 착물과 라세미-코발트(II) 착물간의 입체선택적 전자전달반응 (Stereoselective Electron-Transfer Reaction between Optical Active Cobalt(III) Complex and Racemic Cobalt(II) Complex)

  • 이동진;정맹준;도명기
    • 대한화학회지
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    • 제35권5호
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    • pp.500-505
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    • 1991
  • 광학활성인 ${\bigwedge}$-[CO(EDDS)]$^-$와 리간드의 conformation 변화에 있어 제한되는 착물인 $[Co({\pm}chxn)_3]^{2+}$간의 전자전달반응에 따른 입체선택성을 수용액 중에서 조사한 결과 4개의 conformational isomer($lel_3,\;lel_2ob,\;lelob_2,\;and\;ob_3)$가 존재하는 ${\Delta}-[Co(chxn)_3]^{3+}$가 생성되었으며 각 이성질체의 광학순도는 각각 22% e.e, 25% e.e, 11% e.e, 10% e.e로서 나타났다. Λ-[CO(EDDS)]-와 [Co($\pm$ chxn)$_3]^{2+}$간의 전자전달반응에 따른 입체선택성을 DMSO 중에서 반응시킨 결과 두 개의 conformational isomer($lel_3, lel_2ob$)을 포함하는 ${\bigwedge}$-[Co(chxn)$_3]^{3+}$가 생성되었으며 광학순도는 $lel_3$의 경우가 100% e,e로 나타났으며, $lel_2ob$의 경우는 75% e.e로 나타났다.

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고려인삼의 생장효율에 미치는 수종 생장조절제의 효과 (Effect of Some Growth Regulators on Growth Efficiency of Panax ginseng)

  • 박훈;윤종혁;이미경
    • Journal of Ginseng Research
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    • 제12권2호
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    • pp.158-163
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    • 1988
  • 고려인삼의 묘를 GA, 2,4-D 및 B-9로 처리하여 암하에서 생육시켰다. 생장효율($E_1$ = St/Ro, $E_2$ = St/(Ro-Rt), $E_3$ = (Ro- Rt)/ Ro, 여기서 St는 지상부중, Ro와 Rt는 초기와 일정시간 후의 뿌리의 무게임)과 기타 관련된 요인 및 상호관계를 조사하였다. $E_1$$E_3$는 온도변화에 이차식 관계를 보인 반면 $E_2$는 부의 직선 상관을 보였다. $E_1$$E_2$보다 $E_3$에 더 의존하였다. $E_2$$E_3$값은 거의 같았다. $E_2$는 전에 보고된 값보다 커서 뿌리간 큰 차이가 있음을 나타낸다. GA는 고온역에서 $E_2$$E_3$값을 증대시켰으며 B-9은 모든 온도에서 $E_3$를 크게 감소시켰고고 저온역에서 $E_2$를 감소시켰다. 지상부중은 대부분의 생장조절제와 온도에서 기질량과 유의정상관을 보였으며 몇경우에는 호흡소모량과 유의정상관을 보였다. 호흡소모량은 저온역에서만 $E_1$$E_3$와는 유의정상관을 $E_2$와는 유의부상관을 보였다.

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Apolipoprotein E Polymorphism in the Korean Population

  • Eom Yong-Bin;Jo Yoon-Kyung;Lee Duk-Chul;Im Jee-Aee
    • 대한의생명과학회지
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    • 제11권4호
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    • pp.429-434
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    • 2005
  • Apolipoprotein E (apoE) restriction isotyping used oligonucleotides to amplify apoE gene sequences containing amino acid positions 112 and 158. The amplification products were digested with HhaI and subjected to electrophoresis on $4\%$ agarose gel. Each of the isoforms was distinguished by a unique combination of HhaI fragment sizes that enabled unambiguous typing of all homozygotic and heterozygotic combinations. HhaI cleaves at GCGC encoding 112arg (E4) and 158arg (E3, E4), but does not cut at GTGC encoding 112cys (E2, E3) and] 58cys (E2). DNA was isolated from 72 study participants and apoE genotypes were determined utilizing the polymerase chain reaction and restriction isotyping. In the entire group of subjects, $38 (52.8\%)$ had apo E4/4 or E3/4 (Group E4), $28(38.9\%)$ had the apo E3/3 genotype (Group E3) and $6(8.3\%)$ had apo E2/2 or E2/3 (Group E2). This genotypic information may help to identify individuals at increased risk for several diseases.

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핸드스프링 몸접어 앞공중돌기동작의 운동학적 분석 (The Kinematic Analysis of Handspring Salto Forward Piked)

  • 권오석
    • 한국운동역학회지
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    • 제17권1호
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    • pp.145-153
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    • 2007
  • The purpose of this study is to compare and analyze the phase-by-phase elapsed time, the COG, the body joint angle changes and the angular velocities of each phase of Handspring Salto Forward Piked performed by 4 college gymnasts through 3D movement analysis program. 1. The average elapsed time for each phase was .13sec for Phase 1, .18sec for Phase 2, .4sec for Phase 3, and .3sec for Phase 5. The elapsed time for Phase 1 to Phase 3 handspring was .35sec on average and the elapsed time for Phase 4 to Phase 5 handspring salto forward piked was .7sec on average. And so it showed that the whole elapsed time was 1.44sec. 2. The average horizontal changes of COG were 93.2 cm at E1, 138. 5 cm at E2, 215.7 cm at E3, 369.2 cm at E4, 450.7 cm at E5, and 553.1 cm at E6. The average vertical changes of COG were 83.1 cm at E1, 71.3 cm at E2, 78.9 cm at E3, 93.7 cm at E4, 150.8 cm at E5, and 97.2 cm at E6. 3. The average shoulder joint angles at each phase were 131.6 deg at E1, 153.5 deg at E2, 135.4 deg at E3, 113.4 deg at E4, 39.6 deg at E5, and 67.5 deg at E6. And the average hip joint angles at each phase were 82.2 deg at E1, 60 deg at E2, 101.9 deg at E3, 161.2 deg at E4, 97.7 deg at E5, and 167 deg at E6. 4. The average shoulder joint angular velocities at each phase were 130.9deg/s E1, 73.1 deg/s at E2, -133.9 deg/s at E3, -194.4 deg/s at E4, 29.4 deg/s at E5, and -50.1 deg/s at E6. And the average hip joint angular velocities at each phase were -154.7 deg/s E1, -96.5 deg/s at E2, 495.9 deg/s at E3, 281.5 deg/s at E4, 90.3 deg/s at E5, and 181.7 deg/s at E6. The results shows that, as for the performance of handspring salto forward piked, it is important to move in short time and horizontally from the hop step to the point to place the hands on the floor and jump, and to stretch the hip joints as much as possible after the displacement of the hands and to keep the hip joints stretched and high in the vertical position at the takeoff. And it is also important to bend the shoulder joints and the hip joints fast and spin as much as possible after the takeoff, and to decrease the speed of spinning by bending he shoulder joints and the hip joints quickly after the highest point of COG and make a stable landing.

eRF1aMC and $Mg^{2+}$ Dependent Structure Switch of GTP Binding to eRF3 in Euplotes octocarinatus

  • Song, Li;Jia, Yu-Xin;Zhu, Wen-Si;Chai, Bao-Feng;Liang, Ai-Hua
    • Journal of Microbiology and Biotechnology
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    • 제22권2호
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    • pp.176-183
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    • 2012
  • Eukaryotic translation termination is governed by eRF1 and eRF3. eRF1 recognizes the stop codons and then hydrolyzes peptidyl-tRNA. eRF3, which facilitates the termination process, belongs to the GTPase superfamily. In this study, the effect of the MC domain of eRF1a (eRF1aMC) on the GTPase activity of eRF3 was analyzed using fluorescence spectra and high-performance liquid chromatography. The results indicated eRF1aMC promotes the GTPase activity of eRF3, which is similar to the role of eRF1a. Furthermore, the increased affinity of eRF3 for GTP induced by eRF1aMC was dependent on the concentration of $Mg^{2+}$. Changes in the secondary structure of eRF3C after binding GTP/GDP were detected by CD spectroscopy. The results revealed changes of conformation during formation of the eRF3C GTP complex that were detected in the presence of eRF1a or eRF1aMC. The conformations of the eRF3C eRF1a GTP and eRF3C eRF1aMC GTP complexes were further altered upon the addition of $Mg^{2+}$. By contrast, there was no change in the conformation of GTP bound to free eRF3C or the eRF3C eRF1aN complex. These results suggest that alterations in the conformation of GTP bound to eRF3 is dependent on eRF1a and $Mg^{2+}$, whereas the MC domain of eRF1a is responsible for the change in the conformation of GTP bound to eRF3 in Euplotes octocarinatus.

Estrone-3-Glucuronide에 대한 단일클론항체를 이용한 Estrone-3-Sulfate 측정을 위한 화학발광면역분석법 (Chemiluminescence Immunoassay for Measurement of Estrone-3-Sulfate Using Monoclonal Antibody to Estrone-3-Glucuronide)

  • 김윤규;민형식;김춘원;김창규;김선호;김종배
    • 한국가축번식학회지
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    • 제20권2호
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    • pp.215-221
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    • 1996
  • This study was carried out to develop an immunoassay for the diagnosis of the pregnancy and ovarian function of domestic animals. Using 2E92C10 monoclonal antibody(McAb) generated against estrone-3-glucuronide(E1-3-G) and appeared a high cross-reactivity with estrone-3-sulfate(E1-3-S), chemiluminesence immunoassay (CIA) to detect E1-3-S was developed. 2E92C10 McAb cross-reacted with E1-3-S (30%) was purified from ascites fluid using protein G sepharose gel column. The purity of purified antibody fraction was monitored by SDS-PAGE and was better compared to that of crude ascite fluid. The soild and liquid phase CIA for E1-3-S were established utilizing 2E92C10 antibody and E1-3-G-ABEI conjugate used as a tracer. As the results, the titer of 2E92C10 antibody was 5g/ml in soild phase and 1:2000 in liquid phase. The sensitivity on soild and solid phase CIA were about 200 pg/ml. These results indicate that CIA for measurement of E1-3-S was successfully developed by using ant-E1-3-G McAb cross-reacted with E1-3-S and could be usefully used to research this area.

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An Efficient Application of eBSS DRM Method to eBook Contents based on ePub 3.0 for Smart Device

  • Jun, Eung Sup
    • 한국컴퓨터정보학회논문지
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    • 제21권12호
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    • pp.59-72
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    • 2016
  • DRM(Digital Rights Management) is essential for the copy right protection of eBooks based on ePub 3.0 by IDPF. In this paper, we developed eBSS(eBook Service System) as ePub 3.0 builder and viewer system with DRM and proposed an efficient DRM method which improves the performance of contents generation, security and distribution system. The efficient application of DRM method to the eBook contents based on ePub 3.0 for smart phone is practically useful for eBook service system. It is very useful for the suggested eBSS with DRM method and strategy to apply easily and practically to the encryption and decryption of the eBook contents. Also, it is very efficient to generate the ePub 3.0 contents and to apply DRM method to it especially, by using practically this suggested ePub 3.0 builder system from the view point of the eBook content generation and its viewer such as eBook reader for user and eBook providers.

Gene Cloning and Nucleotide Sequence of Human Dihydrolipoamide Dehydrogenase-Binding Protein

  • Lee, Jeongmin;Ryou, Chongsuk;Jeon, Bong Kyun;Lee, Poongyeon;Woo, Hee-Jong;Kwon, Moosik
    • Asian-Australasian Journal of Animal Sciences
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    • 제15권3호
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    • pp.421-426
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    • 2002
  • The pyruvate dehydrogenase complex (PDC), a member of $\alpha$-keto acid dehydrogenase complex, catalyzes the oxidative decarboxylation of pyruvate with the formation of $CO_2$, acetyl-CoA, NADH, and $H^+$. This complex contains multiple copies of three catalytic components including pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2), and dihydrolipoamide dehydrogenase (E3). Two regulatory components (E1-kinase and phospho-E1 phosphatase) and functionally less-understood protein (protein X, E3BP) are also involved in the formation of the complex. In this study, we have partially cloned the gene for E3BP in human. Nine putative clones were isolated by human genomic library screening with 1.35 kb fragment of E3BP cDNA as a probe. For investigation of cloned genes, Southern blot analysis and the construction of the restriction map were performed. One of the isolated clones, E3BP741, has a 3 kb-SacI fragment, which contains 200 bp region matched with E3BP cDNA sequences. The matched DNA sequence encodes the carboxyl-terminal portion of lipoyl-bearing domain and hinge region of human E3BP. Differences between yeast E3BP and mammalian E3BP coupled with the remarkable similarity between mammalian E2 and mammalian E3BP were confirmed from the comparison of the nucleotide sequence and the deduced amino acid sequence in the cloned E3BP. Cloning of human E3BP gene and analysis of the gene structure will facilitate the understanding of the role(s) of E3BP in mammalian PDC.