公式:
length of insert (bp)/length of vector (bp) x ng of vector = ng of insert needed for 1:1 insert:vector ratio
(插入片段长度 (bp) X 载体重量(ng) ) / 载体长度 (bp) = 插入片段:载体比例为1:1时所需的插入片段重量(ng)
Platinum Taq DNA高保真聚合酶混合物是否会在PCR产物中留下3′ A尾,从而可用于之后的TOPO TA 或普通TA 载体克隆?
Simian-human immunodeficiency virus containing a human immunodeficiency virus type 1 subtype-E envelope gene: persistent infection, CD4(+) T-cell depletion, and mucosal membrane transmission in macaques.
Authors:Himathongkham S, Halpin NS, Li J, Stout MW, Miller CJ, Luciw PA
Journal:J Virol
PubMed ID:10933692
'The envelope (env) glycoprotein of human immunodeficiency virus type 1 (HIV-1) determines several viral properties (e.g., coreceptor usage, cell tropism, and cytopathicity) and is a major target of antiviral immune responses. Most investigations on env have been conducted on subtype-B viral strains, prevalent in North America and Europe. Our study ... More
Overexpression of Xenopus laevis growth hormone stimulates growth of tadpoles and frogs.
Authors:Huang H, Brown DD
Journal:Proc Natl Acad Sci U S A
PubMed ID:10618393
'The role of growth hormone (GH) in amphibian metamorphosis is ambiguous based on experiments in which mammalian GH was administered to tadpoles and frogs. We have reexamined the effects of GH by producing transgenic Xenopus laevis that overexpress the cDNA encoding X. laevis GH. These transgenic tadpoles take the same ... More
Identification of cardiac glycoside molecules as inhibitors of c-Myc IRES-mediated translation.
Authors:Didiot MC, Hewett J, Varin T, Freuler F, Selinger D, Nick H, Reinhardt J, Buckler A, Myer V, Schuffenhauer A, Guy CT, Parker CN
Journal:J Biomol Screen
PubMed ID:23150017
'Translation initiation is a fine-tuned process that plays a critical role in tumorigenesis. The use of small molecules that modulate mRNA translation provides tool compounds to explore the mechanism of translational initiation and to further validate protein synthesis as a potential pharmaceutical target for cancer therapeutics. This report describes the ... More
A dual-specificity aminoacyl-tRNA synthetase in the deep-rooted eukaryote giardia lamblia.
Authors:Bunjun S, Stathopoulos C, Graham D, Min B, Kitabatake M, Wang AL, Wang CC, Vivares CP, Weiss LM, Soll D
Journal:Proc Natl Acad Sci U S A
PubMed ID:11078517
'Cysteinyl-tRNA (Cys-tRNA) is essential for protein synthesis. In most organisms the enzyme responsible for the formation of Cys-tRNA is cysteinyl-tRNA synthetase (CysRS). The only known exceptions are the euryarchaea Methanococcus jannaschii and Methanobacterium thermoautotrophicum, which do not encode a CysRS. Deviating from the accepted concept of one aminoacyl-tRNA synthetase per ... More
Cost-effective method to synthesize fluorescently labeled DNA size standards using cloned AFLP fragments.