of Lectures 15 & 16: Library: A genomic library is a population of host bacteria, each of which carries a DNA molecule that was inserted into a cloning vector, such that the collection of cloned DNA molecules represents the entire genome of the source organism. The DNA molecules of an organism of interest are isolated, partially digested by an endonuclease restriction enzyme and ligated into ve...

Aspartic proteases are a relatively small group of enzymes which express in various nematodes including Onchocerca volvulus. An estimation of the gene copy number corresponding to the OV7A clone, which contains a cDNA insert encoding approximately two-thirds of the entire coding sequence of aspartic protease of O. volvulus, was made by slot blot analysis in a closely related species O. gibsonig...

A two-sample microarray design aims at identifying genes expressed differentially in two-sample cDNA arrays. A two-sample experiment is a commonly used design to compare relative mRNA abundance between two different samples. Several statistical techniques are available for such designs. For the identification of differentially expressed genes, four methods were compared: a fold test, a t-test [...

A cDNA for human ceruloplasmin (EC 1.16.3.1) was identified in a human liver cDNA library by screening with two mixtures of synthetic oligodeoxyribonucleotides that were complementary to two regions of ceruloplasmin mRNA as predicted from the amino acid sequence of plasma ceruloplasmin. The resulting clone (phCP1) contained DNA coding for amino acid residues 202-1046 of the protein, followed by...

SUMMARY Genomic Analysis and Rapid Biological ANnotation (GARBAN) is a new tool that provides an integrated framework to analyze simultaneously and compare multiple data sets derived from microarray or proteomic experiments. It carries out automated classifications of genes or proteins according to the criteria of the Gene Ontology Consortium at a level of depth defined by the user. Additionall...

MOTIVATION Microarray technology allows the monitoring of expression levels for thousands of genes simultaneously. In time-course experiments in which gene expression is monitored over time, we are interested in testing gene expression profiles for different experimental groups. However, no sophisticated analytic methods have yet been proposed to handle time-course experiment data. RESULTS We...

Name of the Sequence. Red seabream β-actin cDNA. Genus and Species. Pagrus major. Origin of Clone. Total RNA was isolated from ovary of red seabream. Poly(A)+ RNA was purified using an Oligotex-dT30 (Super) mRNA purification kit (Takara, Japan). Double-stranded complementary DNA synthesis was carried out using a TimeSaver cDNA synthesis kit (Pharmacia Biotech, Uppsala, Sweden). The cDNA library...

Neuropeptide Y (NPY) is a 36 amino acid peptide found throughout the central and peripheral nervoussystem of rat and human. NPY has been proposed to play an important role in satiety. The aim of this studywas to produce cell lines that secrete high levels of bioactive NPY. For this purpose, the complementaryDNA (cDNA) that encodes NPY was isolated by PCR. The cDNA was then clo...

Scorpion venom is the richest source of peptide toxins with high levels of specific interactions with different ion-channel membrane proteins. The present study involved the amplification and sequencing of a 310-bp cDNA fragment encoding a beta-like neurotoxin active on sodium ion-channel from the venom glands of scorpion Androctonus crassicauda belonging to the Buthidae family using r...

A 6.7-kilobase met complementary DNA (cDNA) was isolated from a pcD cDNA library prepared from C3H mouse fibroblast cell line polyadenylated RNA. Sequence analysis of 6.7-kilobase met cDNA insert revealed that it contained the entire open reading frame and shared an overall homology of 88.1% with the human met gene. Using the mouse met cDNA as probe, high levels of met expression were observed ...