• Title/Summary/Keyword: full-length cDNA

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Molecular Characterization, Chromosomal Localizations, Expression Profile, and Association Analysis of the Porcine PECI Gene with Carcass Traits

  • Gao, H.;Fan, B.;Zhu, M.J.;Liu, Bang
    • Asian-Australasian Journal of Animal Sciences
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    • v.23 no.1
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    • pp.7-12
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    • 2010
  • The full-length cDNA of the porcine peroxisomal ${\Delta}^3$,${\Delta}^2$-enoyl-CoA isomerase (PECI) gene encodes a monofunctional peroxisomal ${\Delta}^3$,${\Delta}^2$-enoyl-CoA isomerase. Cloning and sequencing of the porcine PECI cDNA revealed the presence of an 1185-base pair open reading frame predicted to encode a 394-amino acid protein by the 5'rapid amplification of cDNA ends (5'RACE) and EST sequences. The porcine PECI gene was expressed in seven tissues (heart, liver, spleen, lung, kidney, skeletal muscle, fat) which was revealed by reverse transcriptase-polymerase chain reaction (RT-PCR). The porcine PECI was mapped to SSC71/2 p11-13 using the somatic cell hybrid panel (SCHP) and the radiation hybrid panel (RH) (LOD score 12.84). The data showed that PECI was closely linked to marker S0383. A C/T single nucleotide polymorphism in PECI exon 10 (3'UTR) was detected as a PvuII PCR-RFLP. Association analysis in our experimental pig population showed that different genotypes of PECI gene were significantly associated with the Average Backfat thickness (ABF) (p<0.05) and Buttock backfat thickness (p<0.01).

SEQUENCE ANALYSIS AND COMPARISON OF BOVINE αS1-CASEIN GENOMIC DNA

  • Lin, C.S.;Huang, M.C.;Choo, K.B.;Tseng, Y.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.6 no.4
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    • pp.541-547
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    • 1993
  • A phage clone containing the partial ${\alpha}_{S1}$-casein gene was isolated from a bovine genomic library by using mixed probes of ovine ${\alpha}_{S1}$-, ${\beta}$- and ${\kappa}$-casein cDNAs. Restriction enzyme mapping analysis for 14.6 kb revealed that the map was in conflict with the report of Meade et al. (1990), especially in the 3'-end fragment. Sequence analysis of 12.6 kb revealed a high AT/GC ratio (1.64); we have identified eight exon sequences according to the bovine ${\alpha}_{S1}$-casein cDNA sequence. The same exon/intron splice junction sequence was observed between these exons. We suggest that the bovine ${\alpha}_{S1}$-casein gene night contain a minimum of 18 exons and the full length is approximately 18-19 kb.

cDNA Cloning of a Putative Alcohol Dehydrogenase from the Silkworm, Bombyx mori

  • Kim, Iksoo;Park, Yong-Soo;Sohn, Hung-Dae;Jin, Byung-Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.7 no.1
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    • pp.51-57
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    • 2003
  • A cDNA encoding a putative alcohol dehydrogenase (ADH) class III was cloned from the silkworm, Bombyx mono The full length cDNA is 1,385 nucleotides long and contains an open reading frame of 1,128 bp encoding 376 amino acid residues. The B. mon ADH III protein sequence was aligned with ADH III known from various organisms. Interestingly, the protein sequence of B. mon ADH III showed 87% and 85% identity to ADH III from marine fish Sparus aurata and Branchiostoma floridae, respectively, whereas rather low sequence identity (83%) to Drosophila melanogaster ADH III was observed. Northern blot analysis revealed that B. mon ADH III mRNA is expressed in all tissues from larva examined: fat body, midgut, epidermis, silk gland and ovary, with the highest level found in the fat body.

Molecular Cloning of Peroxidase cDNA from Flower Bud of Ginseng(Panax ginseng)

  • In Jun-Gyo;Lee Bum-Soo;Song Won-Seob;Bae Chang-Hyu;Choi Seong-Kyu;Yang Deok-Chun
    • Plant Resources
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    • v.8 no.2
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    • pp.155-160
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    • 2005
  • A full-length cDNA (PPrx1) encoding peroxidase has been isolated and its nucleotide sequence determined from flower bud in ginseng plant (Panax ginseng). A PPrx1 cDNA is 1192 nucleotides long and has an open reading frame of 1062 bp with a deduced amino acid sequence of 354 residues (pI 7.53). The deduced amino acid sequence of PPrx1 matched to the previously reported peroxidase protein genes. The PPrx1 showed a high similarity with the $64\%$ identity with peroxidase of N. tabacum (AAK52084). In the phylogenetic analysis based on the amino acid residues, the PPrx1 was closer with peroxidase of G. max (AAD37376).

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Characterization and Expression of Chironomus riparius Alcohol Dehydrogenase Gene under Heavy Metal Stress (중금속 노출에 따른 리파리 깔다구에서의 ADH 유전자의 발현 및 특성)

  • Park, Ki-Yun;Kwak, Inn-Sil
    • Environmental Analysis Health and Toxicology
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    • v.24 no.2
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    • pp.107-117
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    • 2009
  • Metal pollution of aquatic ecosystems is a problem of economic and health importance. Information regarding molecular responses to metal exposure is sorely needed in order to identify potential biomarkers. To determine the effects of heavy metals on chironomids, the full-length cDNA of alcohol dehydrogenase (ADH3) from Chironomus riparius was determined through molecular cloning and rapid amplification of cDNA ends (RACE). The expression of ADH3 was analyzed under various cadmium and copper concentrations. A comparative and phylogenetic study among different orders of insects and vertebrates was carried out through analysis of sequence databases. The complete cDNA sequence of the ADH3 gene was 1134 bp in length. The sequence of C. riparius ADH3 shows a low degree of amino acid identity (around 70%) with homologous sequences in other insects. After exposure of C. riparius to various concentrations of copper, ADH3 gene expression significantly decreased within 1 hour. The ADH3 gene expression was also suppressed in C. riparius after cadmium exposure for 24 hour. However, the effect of cadmium on ADH3 gene expression was transient in C. riparius. The results show that the suppression of ADH3 gene by copper exposure could be used as a possible biomarker in aquatic environmental monitoring and imply differential toxicity to copper and cadmium in C. riparius larvae.

Isolation of a Leucoanthocyanidin Dioxygenase (LDOX) Gene from a Spray-type Chrysanthemum (Dendranthema × grandiflorum) and Its Colored Mutants (스프레이형 국화와 화색변이체로부터 Leucoanthocyanidin dioxygenase (LDOX) 유전자의 분리)

  • Chung, Sung-Jin;Lee, Geung-Joo;Lee, Hye-Jung;Kim, Jin-Baek;Kim, Dong-Sub;Kang, Si-Yong
    • Horticultural Science & Technology
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    • v.28 no.5
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    • pp.818-827
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    • 2010
  • A full-length cDNA and genomic DNA of a $leucoanthocyanidin$ $dioxygenase$ ($DgLDOX$) gene was isolated from the petals of chrysanthemum 'Argus', and comparative features of the gene among three flower color mutants derived from a gamma-ray mutagenesis were characterized. The cDNA coding region of the gene was 1068 bp and was translated into 356 amino acids accordingly. The genomic DNA size was 1346 bp for 'Argus', while three mutants revealed ranges of 1363 to 1374 bp. A single intron between two coding exons for the $DgLDOX$ gene was found, of which size was 112 bp for 'Argus', but 128 or 137 bp for three flower color mutants, indicating that a genomic insertion in the intron occurred during the gamma-ray mutagenesis. DNA blot analysis revealed the $DgLDOX$ gene presenting as a single copy in the chrysanthemum genome. The $DgLDOX$ gene was expressed in both 'Argus' of light-pink color and two purple color mutants (AM1 and AM3) but had very weak expression in only white color mutant (AM2). The results demonstrated that variations in the flower color of the mutants might be associated with changes in the amino acid moieties in the coding exons or fragment insertions in the intron of the $DgLDOX$ gene, which potentially resulted in less expression of the gene in the white colored mutant.

Generation of an Infectious Clone of a New Korean Isolate of Apple chlorotic leaf spot virus Driven by Dual 35S and T7 Promoters in a Versatile Binary Vector

  • Kim, Ik-Hyun;Han, Jae-Yeong;Cho, In-Sook;Ju, HyeKyoung;Moon, Jae Sun;Seo, Eun-Young;Kim, Hong Gi;Hammond, John;Lim, Hyoun-Sub
    • The Plant Pathology Journal
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    • v.33 no.6
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    • pp.608-613
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    • 2017
  • The full-length sequence of a new isolate of Apple chlorotic leaf spot virus (ACLSV) from Korea was divergent, but most closely related to the Japanese isolate A4, at 84% nucleotide identity. The full-length cDNA of the Korean isolate of ACLSV was cloned into a binary vector downstream of the bacteriophage T7 RNA promoter and the Cauliflower mosaic virus 35S promoter. Chenopodium quinoa was successfully infected using in vitro transcripts synthesized using the T7 promoter, detected at 20 days post inoculation (dpi), but did not produce obvious symptoms. Nicotiana occidentalis and C. quinoa were inoculated through agroinfiltration. At 32 dpi the infection rate was evaluated; no C. quinoa plants were infected by agroinfiltration, but infection of N. occidentalis was obtained.

Isolation of a novel dehydrin gene from Codonopsis lanceolata and analysis of its response to abiotic stresses

  • Pulla, Rama Krishna;Kim, Yu-Jin;Kim, Myung-Kyum;Senthil, Kalai Selvi;In, Jun-Gyo;Yang, Deok-Chun
    • BMB Reports
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    • v.41 no.4
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    • pp.338-343
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    • 2008
  • Dehydrins (DHNs) compose a family of intrinsically unstructured proteins that have high water solubility and accumulate during late seed development at low temperature or in water-deficit conditions. They are believed to play a protective role in freezing and drought-tolerance in plants. A full-length cDNA encoding DHN (designated as ClDhn) was isolated from an oriental medicinal plant Codonopsis lanceolata, which has been used widely in Asia for its anticancer and anti-inflammatory properties. The full-length cDNA of ClDhn was 813 bp and contained a 477 bp open reading frame (ORF) encoding a polypeptide of 159 amino acids. Deduced ClDhn protein had high similarities with other plant DHNs. RT-PCR analysis showed that different abiotic stresses such as salt, wounding, chilling and light, triggered a significant induction of ClDhn at different time points within 4-48 hrs post-treatment. This study revealed that ClDhn assisted C. lanceolata in becoming resistant to dehydration.

Molecular Characterization and Infectious cDNA Clone of a Korean Isolate of Pepper mild mottle virus from Pepper

  • Yoon, Ju-Yeon;Hong, Jin-Sung;Kim, Min-Jea;Ha, Ju-Hee;Choi, Gug-Seon;Choi, Jang-Kyung;Ryu, Ki-Hyun
    • The Plant Pathology Journal
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    • v.21 no.4
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    • pp.361-368
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    • 2005
  • A Korean isolate of Pepper mild mottle virus (PMMoV-Kr) was isolated from a diseased hot pepper plant and its biological and molecular properties were compared to that of PMMoV-J and PMMo V -So The genomic RNA of PMMoV-Kr consists of 6,356 nucleotides. The nucleotide and amino acid sequences identities of four viral proteins and two noncoding regions among PMMoV-Kr, PMMoV-S and PMMoV-J were $96.9\%\;to\;100.0\%\;and\;97.5\%\;to\;98.6\%$, respectively. Full-length cDNA amplicon of PMMoV-Kr was directly amplified by RT-PCR with a set of 5'-end primer anchoring T7 RNA promoter sequence and 3'-end virus-specific primer. Capped transcript RNAs from the full-length cDNA clone were highly infectious and caused characteristic symptoms of wild type PMMoV when mechanically inoculated to systemic host plants such as Nicotiana benthamiana and pepper plants.

Isolation and expression analysis of stimulator of interferon gene from olive flounder, Paralichthys olivaceus

  • Ma, Jeong-In;Kang, Sunhye;Jeong, Hyung-Bok;Lee, Jehee
    • Fisheries and Aquatic Sciences
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    • v.21 no.3
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    • pp.5.1-5.8
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    • 2018
  • Stimulator of interferon gene (STING) is induced by various inflammatory agents, such as lipopolysaccharide and microbial pathogens, including virus and bacteria. In this study, we obtained a full-length cDNA of a STING homolog from olive flounder using rapid amplification of cDNA ends PCR technique. The full-length cDNA of Paralichthys olivaceus STING (PoSTING) was 1442 bp in length and contained a 1209-bp open reading frame that translated into 402 amino acids. The theoretical molecular mass of the predicted protein sequence was 45.09 kDa. In the PoSTING protein, three transmembrane domains and the STING superfamily domain were identified as characteristic features. Quantitative real-time PCR revealed that PoSTING expressed in all the tissues analyzed, but showed the highest level in the spleen. Temporal expression analysis examined the significantly upregulated expression of PoSTING mRNA after viral hemorrhagic septicemia virus (VHSV) stimulation. In contrast, no significant changes in the PoSTING expression were detected in Edwardsiella tarda-challenged group compared to the un-injected control. The expression of P. olivaceus type I interferon (PoIFN-I) was also highly upregulated upon VHSV challenge. These results suggest that STING might be involved in the essential immune defense against viral infection together with the activation of IFN-I in olive flounder.