A novel neutrophilic metalloprotease was isolated from Pseudomonas sp. DR89 isolate which was identified ina mineral spring in Iran. The enzyme was purified from the isolate to 21-folds in a three-step procedure involving ammonium sulfate precipitation, Q-Sepharose ionic exchange and Sephadex G-100 gel filtrationchromatography. Resuts showed that the enzyme was active at high temper...

Sulfur loss during the unblocking of phosphorothioate analogues of oligonucleotides with concentrated aqueous ammonia can be completely suppressed by the addition of 2-mercaptoethanol.

References 1. Marshall T. Sodiumdodecyl sulfate-polyacrylamide gel electro-phoresisof serum after protein denaturation in the presence or absence of 2-mercaptoethanol.

Porcine embryonic stem cells (pESCs) have great potential for application in translational biomedical research, including xenotransplantation and disease models. Obtaining high-quality blastocysts is the most important factor in the isolation and colonization of primary ESCs and the establishment of ESC lines. In pigs, in vitro-derived blastocysts have a limited cell number compared to in vivo-...

Abstrak. Keberhasilan ekstraksi DNA sangatlah penting dalam proses investigasi genetika molekuler. Penggunaan sampel biasanya berupa organ tanaman muda karena diketahui dapat menghasilkan ekstrak yang bagus. Kayu dan kulit kayu juga berpotensi sebagai sumber sifatnya mudah didapat. Namun pengujian efektifitasnya untuk spesies Pinus merkusii belum pernah dilaporkan. Tujuan penelitian membandingk...

objective: β-thalassemia is caused by absence or reduction of β-globin chain synthesis. one of the effective therapeutic methods for this disease can be gene therapy by viral vectors. the capacity of lentiviral vectors is approximately 8 kb, we designed a 6 kb construct containing mini lcr and β-globin gene instead of lcr region. the aim of this study is to make a recombinant lentiviruses conta...