Meet Bio S&T A foreword by our CEO Upcoming conferences BAC library expertise 3 options BAC sequencing RFQ cDNA and DNA libraries Lambda cDNA/genomic Plasmid cDNA/genomic Normalized cDNA RFQ   Gene synthesis Deliverables and guarantees RFQ Mutagenesis Deliverables and guarantees RFQ DNA sequencing Individual sequencing PCR products END EST clones Whole genome Technology portfolio Drug screening APA technology Sequencing technology APAgene GOLD Walking Kits Retroviral products Other custom services Contact info Site map   Partially purified tRNATrp tRNATrp is a primer of reverse transcriptase of Avian retroviruses (except ASNV). tRNATrp is extracted from human placenta with the following procedures: (1) the extraction of total RNA by phenol-chloroform; (2) the chromatogram extraction of total tRNA with DE52; and (3) the chromatogram separation of total tRNATrp from total tRNA with DEAE-Sephadex (A50). Aminoacylation of tRNA with H3-lableled lysine using aminoacyl tRNA synthetase from bovine liver is used for detection. This product can be used to initiate reverse transcription or to carry out hybridization in a specific, but an unquantitative manner.  For long-term storage (years), it is recommended that this product be stored at -80 degrees at a concentration of no less than 0.5mg/ml. For short-term storage, this product is stable at -20 degrees for a minimum of one year. Please contact us for more details!