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Cancers of the head and neck, prostate, liver, and bladder exhibit minimal regions of deletion within chromosomal band 8p23 that either overlap or map very close to one another. We previously refined a minimal region of deletion in squamous cell carcinomas to a 112-kb interval within 8p23. There seems to be only a single gene within this region that is expressed in normal upper aerodigestive tract...
Here we present the sequence of a 45 kb cosmid containing a previously characterized poly-morphic Mhc class II B gene (Agph-DAB1) from the red-winged blackbird (Agelaius phoeniceus). We compared it with a previously sequenced cosmid from this species, revealing two regions of 7.5 kb and 13.0 kb that averaged greater than 97% similarity to each another, indicating a very recent shared duplication....
A paradigm of molecular medicine is the identification of functionally specialized genes in the search of defects responsible for human disease. To identify novel genes relevant for thyroid physiology, we applied serial analysis of gene expression (SAGE) and identified 4260 tag sequences that did not match any known gene present in the GenBank database (“no-match” tags). These no-match tags represent...
In the process of cloning the gene (Scyd1) encoding the mouse CX3C chemokine fractalkine, we identified a novel cDNA that encodes a chimeric molecule termed fracTARC. This molecule is a variant form of the mouse CC chemokine, TARC (for thymus- and activation-regulated chemokine), bearing the fractalkine signal sequence instead of its own. Analysis of the genomic organization of the two genes revealed...
We have constructed a high-resolution consensus genetic map of the rat in a single large intercross, which integrates 747 framework markers and 687 positions of our whole-genome radiation hybrid (RH) map of the rat. We selected 136 new gene markers from the GenBank database and assigned them either genetically or physically to rat chromosomes to evaluate the accuracy of the integrated linkage—RH maps...
The meningioma expressed antigen-6 (MGEA6) was originally identified as an immunogenic antigen in meningioma patients. Somatic hybrid panel mapping and fluorescence in situ hybridization revealed MGEA6-related sequences on different human chromosomes. Here we carry out database analysis to investigate the complexity of the MGEA6-related sequences and demonstrate the existence of a multigene family...
Proteins governing cell death form the basis of many normal processes and contribute to the pathogenesis of many diseases when dysregulated. Here we report the cloning of a novel human CED-4-like gene, CLAN, and several of its alternatively spliced isoforms. These caspase-associated recruitment domain (CARD)-containing proteins are expressed at varying degrees in normal human tissues and may contribute...
The mouse autosomal recessive mutation progressive motor neuropathy (pmn) results in early onset motor neuron disease with rapidly progressing hindlimb paralysis, severe mus-cular wasting, and death at 4–6 weeks of age. pmn is thus considered a good animal model for motor neuron diseases and the characterization of the causative gene should help in understanding the biological causes of human spinal...
The gene encoding myosin light chain kinase (MYLK) is duplicated on human chromosome 3 (HSA3; 3p13;3q21) and on a chromosome with conserved synteny to HSA3 in most non-human primate species. In human, the functional copy resides on 3q21, whereas the 3p13 site contains a pseudogene. To trace the origin of the duplication, we characterized the mouse gene Mylk. A single sequence corresponding to the...
Myotubularin and myotubularin-related proteins are dual-specificity phosphatases.Several myotubularin-related proteins have been identified in humans and mice. The members of the myotubularin protein family are highly conserved, from humans to yeast. Mutations in the human myotubularin gene (MTM1) lead to X-linked myotubular myopathy. Here we isolate and localize a novel putative myotubularin-related...
We conducted a quantitative trait locus (QTL) mapping study to dissect the multifactorial nature of maximal electroshock seizure threshold (MEST) in C57BL/6 (B6) and DBA/2 (D2) mice. MEST determination involved a standard paradigm in which 8- to 12-week-old mice received one shock per day with a daily incremental increase in electrical current until a maximal seizure (tonic hindlimb extension) was...
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