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A cosmid containing the beta-amyloid precursor protein (APP) from Fugu rubripes has been completely sequenced. In addition to APP, the cosmid contains the E4TF1-60 transcription factor, the U2AF35 pre-mRNA splicing factor, and the cystathionine beta synthetase (CBS) gene. The human homologues of all four genes map to human chromosome 21 but are not clustered; APP and E4TF1-60 map within 21q21, whereas...
GBP28 is a novel human plasma gelatin-binding protein that is encoded by apM1 mRNA, expressed specifically in adipose tissue. Three overlapping clones (two lambda clones and one BAC clone) containing the human plasma gelatin-binding protein (GBP28) gene were isolated and characterized. The GBP28 gene spans 16kb and is composed of three exons from 18bp to 4277bp in size with consensus splice sites...
We constructed new LYS2 fragmentation vectors that allow direct acentric and centric fragmentation of yeast artificial chromosomes (YACs) and selection of fragmented YACs in yeast strain AB1380. The fragmentation vectors were used efficiently with repetitive (e.g., Alu), low-copy (e.g., CA-repeats) and single-copy (e.g., exons) sequences. High recombination efficiencies were obtained in fragmenting...
Osteoclast differentiation factor (ODF), a ligand for osteoclastogenesis inhibitory factor (OCIF)/ osteoprotegerin (OPG), is a member of the membrane-associated tumor necrosis factor (TNF) family and induces osteoclast-like cell formation in vitro. In the present study, mouse ODF genomic clones were isolated and sequenced to determine their gene structure. The mouse ODF gene is a single copy gene...
The human fibroblast growth factor receptor (FGFR) genes play important roles in normal vertebrate development. Mutations in the human FGFR2 gene have been associated with many craniosynostotic syndromes and malformations, including Crouzon, Pfeiffer, Apert, Jackson-Weiss, Beare-Stevenson cutis gyrata, and Antley-Bixler syndromes, and Kleeblaatschadel (cloverleaf skull) deformity. The mutations identified...
Cyclins are essential activators of cyclin-dependent kinases (Cdk) which, in turn, play pivotal roles in controlling transition through cell-cycle checkpoints. Cyclin G2 is a recently discovered second member of the G-type cyclins. The two members of the G-type cyclins, cyclin G1 and cyclin G2, share high structural similarity but their function remains to be defined. Here we characterize the structure...
Ornithine decarboxylase antizyme 1, a negative regulator of polyamine levels, acts by destabilizing the first enzyme in the polyamine biosynthetic pathway (ODC) and by inhibiting uptake of polyamines. Recently, a second mammalian antizyme was discovered. Here, we report the genomic organization and chromosomal position of the new human gene, HuAZ2, and make a comparison with its antizyme 1 homologue...
Complete genomic DNA sequences of three homoeologous Waxy structural genes, located on the chromosomes 7A, 4A, and 7D in hexaploid wheat (Triticum aestivum L. cv. Chinese Spring), were separately determined and analyzed. Those structural genes in lengths from start to stop codon were 2781bp in Wx-7A, 2794bp in Wx-4A, and 2862bp in Wx-7D, each of which consisted of 11 exons and ten introns. They were...
We have isolated the rat, mouse and human genes of a distant member of the TGF-β superfamily, growth/differentiation factor-15/macrophage inhibiting cytokine-1 (GDF-15/MIC-1) by screening of genomic libraries. All three genes are composed of two exons, and contain one single intron that interrupts the coding sequences at identical positions within the prepro-domain of the corresponding proteins. The...
Prohormone or proprotein convertases are members of the subtilisin family of serine proteases. They are involved in the activation of precursor molecules by endoproteolytic cleavage at basic amino acid residues. Among the different members of this prohormone convertase family, the prohormone convertase 2 (PC2) is almost exclusively expressed in endocrine and neuroendocrine tissues and plays an important...
Endothelial protein C receptor (EPCR), present on endothelial cells of relatively large veins and arteries, plays a role in the enhancement of protein C activation by the thrombin-thrombomodulin complex. In the present study, we determined the organization and the complete nucleotide sequence of the human EPCR gene using polymerase chain reaction-direct sequencing method. The transcription initiation...
The E1AF protein belongs to the family of Ets transcription factors and is involved in the regulation of metastasis gene expression. It has recently been reported in an undifferentiated child sarcoma that part of this gene could be fused by translocation to the ews gene. We show here that the human e1af gene, which is located in the q21 region of chromosome 17, is organized in 13 exons distributed...
Methionine synthase reductase (EC 2.1.1.135) is a flavoprotein essential for maintenance of methionine synthase in an active state. We characterized the human gene for methionine synthase reductase (MTRR). The gene is approximately 34kb and comprises 15 exons, varying in size from 43 to 1213bp, and 14 introns whose sizes vary from 108bp to 5kb. The positions of several junctions are conserved between...
We have determined the organization and sequence of the region containing two ribosomal protein (rp) genes in the human and mouse genomes. The two genes, human RPL13A and RPS11, and mouse Rpl13a and Rps11, are tandemly located in both genomes with an interval of only 4.6kb in the case of the human genes and 1.6kb in the case of the mouse genes. The human RPL13A and RPS11 are 4236bp and 3254bp in length...
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