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Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sang Mong Lee 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Presently, We have constructed an olig-d(T) primed directional cDNA library from the silkworm Dongchunghacho, an entomopathogenic fungus, of which species is belonging to Paecilomyces tenuipes Jocheon-1. To isolate and screen genes in the fungus, 626 expressed sequence tags(ESTs) were generated by a partial sequencing from the cDNA library. Paecilomyces tenuipes Jocheon-1 cDNA encoding the glyceraldehyde-3-phosphate dehydrogenase(Pt-GAPDH) of Paecilomyces tenuipes Jocheon-1 was cloned from the above cDNA library. The complete cDNA sequence of Pt-GAPDHis comprised of 1,014bp encoding 338 amino acid residues. The deduced protein sequence of Pt-GAPDH showed higher homology with Beauberia bassiana-GAPDH(93% amino acid identity). Hydropathy analysis revealed that Pt-GAPDH protein is hydrophilic. The major three amino acids in its composition of amino acid residues were alanine(11.54%), valine(9.47%) and glycine(8.88%). The cDNA encoding Pt-GAPDH was expressed as a 37 kDa polypeptide in baculovirus-infected insect Sf9 cells. The Pt-GAPDH gene of Paecilomyces tenuipes entomopathogenic fungus consisted of three exons and two introns coding for 338 amino acid residues, and the genomic DNA length of the gene spans 1302bp. The accession number of the gene in GenBank are GU997099 for Pt-GAPDH cDNA and GU997102 for Pt-GAPDH genomic DNA.
Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sang Mong Lee 한국응용곤충학회 2010 한국응용곤충학회 학술대회논문집 Vol.2010 No.05
Fungi belonging to the Paecilomyces spp. have recently been used as food and herbal medicines in Korea and are greatly popular as commercially available powdered supplement or dried fruiting body. Despite this acceptance and its use, little is known of the genes related to its reactive agents. Presently, We have constructed an olig-d(T) primed directional cDNA library from the silkworm Dongchunghacho, an entomopathogenic fungus, of which species is belonging to Paecilomyces spp. based on the previous identification of ITS1 and ITS2 at the molecular level and collected from Jocheon Miryang, Korea. To isolate and screen genes in the fungus, 626 expressed sequence tags(ESTs) were generated by a partial sequencing from the cDNA library. cDNA encoding the glyceraldehyde-3-phosphate dehydrogenase(Pt-GAPDH) of Paecilomyces tenuipes- Jocheon was cloned from the above cDNA library. The complete cDNA sequence of Pt-GAPDH is comprised of 1,014bp encoding 338 amino acid residues. The deduced protein sequence of Pt-GAPDH showed higher homology with Beauberia bassiana-GAPDH(93% amino acid identity). Hydropathy analysis revealed that Pt-GAPDH protein is hydrophilic. The major three amino acids in its composition of amino acid residues were alanine(11.54%), valine(9.47%) and glycine(8.88%). The Pt-GAPDH gene of Paecilomyces tenuipes entomopathogenic fungus consisted of three exons and two introns coding for 338 amino acid residues, and the genomic DNA length of the gene spans 1302bp. The accession number of the gene in GenBank are GU997099 for Pt-GAPDH cDNA and GU997102 for Pt-GAPDH genomic DNA. More investigation works including gene expression, immunological analysis etc. will be carried continuously without hesitation after this presentation.
Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sook Jae Sea,Hong Ja Kim,Eunju Park,Gyeong Im Jeon,Hyun Jung Lee, 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
A full genomic DNA microarray technique was employed to investigate the effects of Dongchunghacho on aortal and hepatic gene expression in apolipoprotein E knockout mice fed a high-fat/high-cholesterol diet. Male 8- week - old ApoE-/- mice were randomly divided into two groups, control(high cholesterol group; HC) and supplementation of Dongchunghacho (SD). All of the mice were fed a high-fet/high cholesterol diet with or without Dongchunghacho supplemented by 1% for 6 weeks. At first, lipid profile of the Dongchunghacho was measured by biochemical analysis. No differences were observed in serum triglyceride and total cholesterol levels between the two groups. Antigenotoxic effect of the Dongchunghacho was measured by the single cell gel electrophoresis assay (Comet assay) and quantified as % fluorescence in tail. Dongchunghacho supplementation decreased significantly leukocytic DNA damage and also there was a tendency of reduction in hepatic DNA damage in Dongchunghacho group compared with the control group. In up regulated genes in liver and aorta of the mice, genes with 0 to 2- fold difference in expression level between the two group (HD and SD) was very much more in liver than in aorta, on the contrary, those with 2-fold to 16-flod difference increased greatly rather in aorta than in liver. Also, almost the same results were observed in down regulated genes in liver and aorta between the two groups. These results suggested that supplementation of Dongchunghacho might be helpful in preventing leukocytic DNA damage induced by high fat diet, and has a more crucial roles in aortal gene expression.
Liu Ya Qi,Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sang Mong Lee 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
In this study, a full-length heat shock protein88 complementary DNA (cDNA) of Paecilomyces tenuipes Jocheon-1 was obtained by screening of P. tenuipesJocheon-1 Uni-Zap cDNA library and 5' RACE polymerase chain reaction. The Paecilomyces tenuipes Jocheon-1 heat shock protein88 cDNA contains an open reading frame of 2,139 bp encoding 713 amino acid residues. The deduced amino acid sequence of the P. tenuipes Jocheon-1 HSP88 cDNA showed 77% identity to N. haematococca HSP88 and 45-76% identity to other fungi HSP88. Phylogenetic analysis and BLAST program analysis confirmed that the deduced amino acid sequences of the P. tenuipes Jocheon-1 HSP88 gene belonged to the ascomycetes group within the fungal clade and P. tenuipes Jocheon-1 HSP88 also contains the conserved ATPase domain at the N-terminal. The cDNA encoding P. tenuipes Jocheon-1 HSP88 was expressed as a 88 kDa polypeptide in baculovirus-infected insect Sf9 cells. Under different stress conditions, mRNA expression of P. tenuipes Jocheon-1 HSP88 were quantified by real-time PCR and the result showed that heat shock stress affected the mRNA expression levels of P. tenuipes Jocheon-1 HSP88.
Liu Ya Qi,Nam Sook Park,Han Seok Kang,Seon Ku Kim,Yong Gyun Kim,Byung Uuk Cho,Teak Soon Shin,Keun Ki Kim,Hyun Chul Park,Hong Joo Son,Hong Gu Lee,Sang Mong Lee 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
The genomic structure and phylogenetic relationships of HSP88 genes from P. tenuipes Jocheon-1, P. tenuipes, C. militaris and C. pruinosa are described. The HSP88 genomic DNA from P. tenuipes Jocheon-1, P. tenuipes and C. militaris all contain 5 introns and 6 exons with the length of 13, 62, 32, 1438, 306, 288 bp, encoding 713 amino acid residues. C. pruinosa HSP88 genomic DNA contains 4 introns and 5 exons encoding 713 amino acids. The length of each exon of C. pruinosa HSP88 is 13, 62, 32, 1744, 288 bp and the length of exon 4 is identical to the total length of exon 4 and exon 5 of HSP88 of P. tenuipes Jochoen-1, P. tenuipes, and C. militaris. The deduced amino acid sequence of P. tenuipes Jocheon-1 HSP88 showed 99% identity with the P. tenuipes, 97% identity with the Cordyceps militaris, and 98% identity with the C. pruinosa. Phylogenetic analysis confirmed that the P. tenuipes Jocheon-1, P. tenuipes, C. militaris and C. pruinosa HSP88 are placed together within the ascomycetes group of fungal clade.
Hong Gu Lee(이홍구),Young Cheng Jin(김영성),Hisashi Hidari,Yun Jaie Choi(최윤재),Seon Ku Kim(김선구),Teak Soon Shin(신택순),Byung Uuk Cho(조병욱),Yong Gyun Kim(김용균),Keun Ki Kim(김근기),Hong Joo Son(손홍주),Sang Mong Lee(이상몽) 한국생명과학회 2008 생명과학회지 Vol.18 No.7
본 연구는 정상으로 단백질을 급여한 거세면양에 있어서 에너지 첨가가 GHRP-2투여에 대한 혈장 IGF-1 및 IGFBPs에 대한 반응과, 고에너지 급여에 따른 GHRP-2투여가 hepatic GH 수용체에 미치는 영향을 검증하기 위하여 실시하였다. 시험 결과 HENP (CP 0.34 ㎏, TDN 1.83 ㎏/day DM intake)처리기간 동안 혈장 IGF-1 과 39-42kDa IGFBP-3수준은 LENP (CP 0.32 ㎏, TDN 0.87 ㎏/day DM intake)기간에 비하여 높게 나타났으나 (P<0.05), 혈장 34 kDa IGFBP-2와 24 kDa IGFBP-4는 영양처리에 의해 영향을 받지 않았다. 각 영양처리 기간동안 GHRP-2 (12.5 μg/㎏ body weight/day)투여는 혈장 GH 반응이 촉진되었으며(P<0.05), 혈장 GH 평균 함량과 AUC증가에 있어서는 LENP처리 기간에 비하여 HENP처리기간에서 유의적으로 높게 나타났다(P<0.01). 특히 HENP에서 7일간 GHRP-2투여에 의한 일중 혈장 IGF-1 변화양상을 조사한 결과 투여 2, 6 및 7일에서 뚜렷한 증가양상을 보였다(P<0.05). 이에 반하여 LENP에서는 오직 투여 3일째에서 Saline구에 비하여 유의적인 증가를 확인하였다(P<0.05). IGFBPs의 ligand blotting 결과 HENP구에서 혈장 39-43 kDa IGFBP-3의 수준의 증가가 투여 6일과 7일에서 관찰되었으나 혈장 IGFBP-2수준은 두 영양처리시기에서 유의적인 차이를 관찰하지 못했다. 아울러 HENP구에 있어서 간세포막에 <SUP>125</SUP>I-oGH의 결합력을 측정한 결과 GHRP-2투여에 의한 영향은 관찰되지 않았다. 이와 같은 결과는 거세면양에 있어서 단백질과 에너지 사이의 영양적 균형은 내인성 GH/IGF-1 axis는 물론 혈장 IGFBP-3수준의 변화에 영향을 미치고 있음을 시사한다. The purpose of this study was to determine the effect of energy supplement on responses of plasma insulin-like growth factor (IGF)-1 and IGF binding proteins (IGFBPs) to growth hormone-releasing peptide-2 (GHRP-2) administration in normal protein-fed wethers, and to observe the effect of GHRP-2 treatment on hepatic growth hormone (GH) receptor in well-fed wethers. Plasma IGF-1 and 39-42 kDa IGFBP-3 during the HENP (CP, crude protein 0.34 and TDN, total digestible nutrients 1.83 ㎏/day DM, dry matter intake) treatment period were higher than in the LENP (CP 0.32 ㎏ and TDN 0.87 ㎏/day DM intake) period (P<0.05). The response of GH was stimulated by GHRP-2 (12.5 ㎍/㎏ body weight/day) administration during both of the feed treatment periods (P<0.05). The area under curve (AUC) increment and average concentration of GH (0-180 min) with GHRP-2 administration was higher during HENP treatment than LENP treatment (P<0.01). During the HENP treatment period from day 1 to day 7 of twice daily GHRP-2 treatment, the plasma IGF-1 increment was increased on days 2, 6 and 7 of GHRP-2 administration (P<0.05). On the basis of ligand blotting, the proportions of plasma 39-43 kDa IGFBP-3 during the HENP treatment period only showed a significant difference on days 6 and 7 with GHRP-2 administration. No significant difference in the specific binding of 125I-labeled oGH to hepatic membranes was detected between the saline and GHRP-2 treatments of the HENP-fed wethers. These results suggest that the nutritional balance between energy and protein may affect the endogenous GH / IGF-1 axis as well as plasma IGFBP-3 levels.