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LIM-kinase 1 and LIM-kinase 2 (LIMK1 and LIMK2) are members of a novel protein kinase subfamily containing LIM motifs at the N-terminus. There are two isoforms ofLimk2transcripts coding proteins with distinct N-terminal structures: LIMK2a, containing two LIM motifs, and LIMK2b, with one and one-half LIM motifs. Here we report the cDNA and genomic structures of mouse LIMK2. The deduced 638-amino-acid...
We have cloned a cDNA from a mouse gene,Pso(peroxisomal sarcosine oxidase).Psoappears to encode a homolog of the single-subunit (40 kDa) bacterial sarcosine oxidases. The mousePsogene product would contain a peroxisomal localization sequence, like that of the recently reported rabbit enzyme. MousePsolies between 20 and 50 kb upstream of the promoter of theSez6gene, close toCryba1on chromosome 11.Psois...
The highly conservedSaccharomyces cerevisiaeRAD51 protein functions in both mitotic and meiotic homologous recombination and in double-strand break repair. Screening of the public cDNA sequence database forRAD51-like genes led to the identification of a partial sequence from a breast tissue library present in the I.M.A.G.E. (Integrated Molecular Analysis of Genes and their Expression) collection....
We recently reported the isolation of human β-defensin-2 (hBD-2), a novel epithelia-derived peptide antibiotic belonging to the β-defensin family. hBD-2 is expressed in skin and epithelia of the airway system, where it is believed to contribute to its antimicrobial defense. By fluorescencein situhybridization using a hBD-2 genomic DNA probe and subsequent fluorescence R-banding, the hBD-2 gene (HGMW-approved...
ADAM is a recently discovered gene family that encodes proteins with a disintegrin and metalloproteinase. ADAMTS-1 is a gene encoding a new member protein of the ADAM family with the thrombospondin (TSP) type I motif, the expression of which is associated with inflammatory processes. In the present study, we have characterized the exon/intron organization of the mouse ADAMTS-1 gene. The ADAMTS-1 gene...
In this paper, the construction, evaluation, and application of cDNA libraries from eight unfertilized oocytes and single four-cell-, seven-cell-, and blastocyst-stage embryos are described. Rapid, reproducible, and efficient procedures for the construction of PCR-based cDNA libraries from fewer than 10 cells were first developed in small populations of fibroblast cells. The human embryo libraries...
Genes of theMAGEfamily direct the expression of tumor antigens recognized on a human melanoma by autologous cytolytic T lymphocytes. Twelve closely relatedMAGEgenes are located in the Xq28 region. These genes share 60–98% nucleotide identity in their coding region. The presence of homologous genes in a region of Xp21.3 has been reported previously. We obtained the complete sequence of a 42-kb stretch...
LMX1 is a LIM-homeodomain (LIM-HD)-containing protein expressed selectively in insulin-producing β-cell lines, and it it has been shown to activate insulin gene transcription. The human LMX1 gene was mapped by fluorescencein situhybridization to chromosome region 1q22–q23, yet Churchet al.(1994,Nat. Genet.6: 98–105) identified two exon-trapping products from human chromosome 9 that were highly homologous...
We have constructed a collection of canine–rodent microcell hybrid cell lines by fusion of canine fibroblast microcell donors with immortalized rodent recipient cells. Characterization of the hybrid cell lines using a combination of fluorescencein situhybridization and PCR analysis of canine microsatellite repeat sequences allowed selection of a panel of hybrids in which most canine chromosomes are...
Previously we identified a partial human cDNA for a novel cochlear transcript, hCoch-5B2 (HGMW-approved symbol D14S564E), using subtractive hybridization techniques. Herein we report isolation and characterization of both human and mouse (D12H14S564E) cDNAs for Coch-5B2. Full-length Coch-5B2 deduced amino acid sequences reveal a very high degree of conservation in the coding region (89% nucleotide...
To study the function of the B cell signal transduction molecule α4 (IGBP1), we isolated a human α4 (IGBP1) gene that has sequence similarity to the yeast protein (TAP42) involved in the rapamycin-sensitive signal transduction pathway. The human α4 has sequence identities with murine α4 of 83.4% nucleotide and 82.9% amino acid sequence, and a stretch of consensus motifs in the carboxyl terminal is...
TheWntgene family consists of at least 15 structurally related genes that encode secreted extracellular signaling factors. Wnt proteins function in a range of critical developmental processes in both vertebrates and invertebrates and are implicated in regulation of cell growth and differentiation in certain adult mammalian tissues, including the mammary gland. We have isolated a number of WNT sequences...
A genetic linkage map of the canine genome has been developed by typing 150 microsatellite markers using 17 three-generation pedigrees, composed of 163 F2individuals. One hundred and thirty-nine markers were linked to at least one other marker with a lod score ≥ 3.0, identifying 30 linkage groups. The largest chromosome had 9 markers spanning 106.1 cM. The average distance between markers was 14.03...
The spindle assembly checkpoint modulates the timing of anaphase initiation in mitotic cells containing improperly aligned chromosomes and increases the probability of successful delivery of a euploid chromosome set to each daughter cell. We have characterized cDNA sequences from several organisms with highly significant predicted protein sequence homologies toSaccharomyces cerevisiaeBub1p, a protein...
The humanMASproto-oncogene is situated at 6q25.3–q26, a region that is homologous to mouse chromosome 17 where two parentally imprinted genes (MasandIgf2r) have previously been identified. We investigated the imprinting status ofMASin adult lesions to establish the imprinting status of this gene in humans, as certain imprinted genes are known to have altered imprinting phenotypes in cancer. Of 14...
The human genes encoding α1-antitrypsin (α1AT, gene symbol PI), corticosteroid-binding globulin (CBG), α1-antichymotrypsin (AACT), and protein C inhibitor (PCI) are related by descent, and they all map to human chromosome 14q32.1. This serine protease inhibitor (serpin) gene cluster also contains an antitrypsin-related sequence (ATR, gene symbol PIL), but the precise molecular organization of this...
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