ARTICLE
TITLE

METODE PERBANYAKAN KONTROL POSITIF Plasmodiumspp. DENGAN KLONING

SUMMARY

AbstractPositive control of Plasmodium spp. is needed in identification of malaria species using Polymerase Chain Reaction (PCR) method. The limitedness of malaria positive control encourages us to develop the cloning method to multiply Plasmodiumspp.DNA particularly P.vivax, P. malariae, and P. ovale that are still unable to be cultured continuously. DNA product of single round and nested PCR were used as DNA target for cloning method. The cloning method consisted of several processes which are ligation of DNA target into TOPO vector, transformation into competent Escherichia coliDH5a, and selection of transformation product using selective media. In the end of the process, PCR was done to check the success rate of cloning method. Single round PCR resulting 200-300 bp of DNA product, while nested PCR resulting 100-200 bp of DNA product. The advantages of cloning method are produce large amount of products in such a shorter time in process with just small amounts of sample required. However, compared to continuous culture and blood specimen, DNA producted by cloning process can only be used for a spesific PCR method. Furthermore, other test is still required to examine stability of cloning product.Keywords: Plasmodium spp., cloning, single round PCR, nested PCR.ABSTRAKKeterbatasan kontrol positif untuk pemeriksaan spesies malaria secara molekuler dengan teknik Polymerase  Chain  Reaction(PCR), mendorong kita mencari cara alternatif dengan metode kloning. Metode kloning dilakukan untuk perbanyakan DNA Plasmodiumspp. terutama spesies yang  belum  dapat  dikembangbiakkan  secara  kultur berkesinambungan.  Amplifikasi  DNA Plasmodium spp. menggunakan metode single rounddan nestedPCR yang selanjutnya produk PCR tersebut digunakan sebagai DNA target dalam proses kloning. Proses kloning meliputi ligasi ke dalam TOPO vektor, transformasi ke dalam host Escherichia coliDH5a kompeten, dan seleksi hasil transformasi pada media selektif. Selanjutnya dilakukan lagi PCR spesiasi sebagai tahap akhir untuk mengecek keberhasilan kloning. Metode single roundPCR menghasilkan produk DNA dengan ukuran panjang basa 200-300 bp, sedangkan metode nestedPCR menghasilkan produk DNA berukuran 100-200 bp. Keuntungan metode kloning adalah dapat menghasilkan produk DNA dengan jumlah banyak dari volume sampel yang sedikit dan waktu yang relatif singkat. Jika dibandingkan dengan DNA parasit dari hasil kultur berkesinambungan, penggunaan DNA hasil kloning sebagai kontrol positif hanya terbatas pada satu metode PCR saja. Selain itu tes lanjutan untuk menguji stabilitas produk kloning juga sangat diperlukan.Kata kunci: Plasmodium spp., kloning, single roundPCR, nestedPCR.

 Articles related

Maria Lina Rosilawati    

Latar BelakangDNA rpob (RNA polymerase sub unit b) Mycobacterium tuberculosis dapat diamplifikasi secara spesifik dengan metode nested polymerase chain reaction (PCR). Nested PCR yang dilanjutkan dengan sequencing dapat secara langsung diaplikasikan untu... see more


Iury Rodrigues de Almeida,Lilian de Souza Teodoro,João Antonio Xavier Manso,Alex Silva da Cruz,Lysa Bernardes Minasi,Claudio Carlos da Silva,Aparecido Divino da Cruz    

Resumo: A PCR consiste na imitação in vitro do processo de duplicaçãodo DNA, cujo objetivo deste foi de definir o limite da sensibilidade da PCRde amplificar moléculas de DNA bovino diluído seriadamente. Foi extraídoe diluído DNA bovino e submetido a PCR... see more

Revista: Estudos

Wimbuh Tri Widodo,Choirul Huda    

This study aimed to detect Escherichia coli directly without DNA extraction. The nucleus membrane and cell membranes of the Escherichia coli are composed of a phospholipid bilayer, damaged if heated at 950C. Pre-denaturation and denaturation of PCR were ... see more


I. F. Bendezu    

A PCR based method using DNA extracted with non-organic reagents was developed to detect the presence of the two alleles (Mi and mi) of the tomato Mi 1.2 resistance gene in plant material. Plant tissue from young leaves of tomato plants was blotted onto ... see more

Revista: Nematropica

Wimbuh Tri Widodo,Ahmad Yudianto,Sri Puji Astuti W    

This study aimed to identify human DNA from mixing human and chicken blood samples by utilizing Polymerase Chain Reaction (PCR) and cytochrome b gene primer. The cytochrome b gene is a gene located in mitochondrial DNA and has high variation of sequence ... see more