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This invention relates to a strain of Moraxella catarrhalis containing a gene mutation that prevents endotoxic lipooligosaccharide (LOS) synthesis and potential use of the mutant for developing novel vaccines against the pathogen, for which there is currently no licensed vaccine. M. catarrhalis is one of the causative agents of otitis media (middle ear infection), sinusitis, and lung infections. The mutant is defective in the lpxA gene, whose enzyme product is relevant in lipid A biosynthesis (lipid A is part of the LOS).

Of great utility in toxicology and DNA repair research are knockout mice with cell lines enabling one to evaluate generations of gene mutations as a direct function of base excision repair. Of particular importance are lambda-LIZ transgenes. Likewise, wild-type and beta-pol null cell lines are equally important. While there exist cell lines carrying the lambda-LIZ transgene, only wild-type cells are currently available. And while wild-type and beta-pol null cell lines exist, none carry the lambda-LIZ transgene.

The technology provides the isolation of a functional DNA sequence comprising a chromatin insulating element from a vertebrate system and provides the first employment of the pure insulator element as a functional insulator in mammalian cells. The technology further relates to a method for insulating the expression of a gene from the activity of cis-acting regulatory sequences in eukaryotic chromatin.

The invention can be used to develop tests that are much more rapid than conventional tests for determining drug resistance. It relates to the discovery that a putative gene of Mycobacterium tuberculosis (MTb) with no previously identified function is responsible for the ability of the bacteria to activate a class of second line thioamide drugs used for MTb infections. The gene, termed "etaA", codes for the synthesis of a monooxygenase, the enzyme responsible for the oxidative activation of the drugs.

The identification of more sensitive and specific markers of atherosclerosis that are non-invasive and cost-effective may have profound impacts on public health. One such strategy involves the detection of marker genes or their products in blood or serum. Such markers may help identify high-risk patients with subclinical atherosclerosis who may benefit from intensive primary prevention or they may help determine the activity of established disease for monitoring response to treatment, resulting in more targeted secondary prevention.

Hutchinson-Gilford Progeria Syndrome (HGPS) is a very rare progressive childhood disorder characterized by premature aging (progeria). Recently, the gene responsible for HGPS was identified (Eriksson M, et al. Nature 2003), and HGPS joined a group of syndromes — the laminopathies — all of which are caused by various mutations in the lamin A/C gene (LMNA). Lamin A is one of the family of proteins that is modified post-translationally by the addition of a farnesyl group.

National Institutes of Health researchers have developed knockout mice that do not express Tristetraprolin (TTP). TTP is an AU-rich element (ARE) binding protein and the prototype of a family of CCCH zinc finger proteins. AREs were identified as conserved sequences found in the 3’ untranslated region (3’ UTR) of a variety of transiently expressed genes including early response genes, proto-oncogenes, and other growth regulatory genes. AREs function as instability sequences that target ARE-containing transcripts for rapid mRNA decay.

The invention relates to monoclonal antibodies that bind to the transcription factor NCOA6 (ASC-2, AIB-3, TRB, TRAP250, NRC). The antibodies have proven successful reagents for Western blotting and for purifying complexes containing NCOA6. The Western blot experiments revealed that NCOA6 is over-expressed in several breast cancer cell lines, and the purification experiments identified a protein complex containing NCOA6 (the ASCOM complex). The monoclonal antibodies may be useful reagents for studying the role of NCOA6 in transcription and for studying the ASCOM complex.

The invention described and claimed in this patent application relates to the delivery of heterologous nucleic acids or genes to particular target cells. In particular, the application relates to methods of delivering a heterologous nucleic acid or gene of interest to particular target cells using Adeno-Associated Virus of serotype 4 (AAV4). The particular target cells identified are the ependymal cells of the brain. The methods described herein may be useful in carrying out gene therapy for diseases of the brain or central nervous system.

Available for licensing and commercial development is a new scheme for sensitive spatially resolved and spectrally resolved laser-induced fluorescence detection from multiple microfluidic channels. The prototype instrument has been developed and is versatile in that it contains only fixed optical parts and has simultaneous five-color detection from eight microchannels in a plastic microchip for DNA analysis. The detection scheme could be applied to fluorescence detection for any microchip-based analysis in a transparent substrate.