DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019838
Yuxin Fan, Long Yu, Q. Tu, Ruomu Gong, Ying Jiang, Qi Zhang, F. Dai, Chiyuan Chen, Shouyuan Zhao
{"title":"Molecular Cloning, Genomic Organization, and Mapping of β4GalT-VIb, a brain Abundant Member of β4-galactosyltransferase Gene Family, to Human Chromosome 18q12.1","authors":"Yuxin Fan, Long Yu, Q. Tu, Ruomu Gong, Ying Jiang, Qi Zhang, F. Dai, Chiyuan Chen, Shouyuan Zhao","doi":"10.1080/10425170290019838","DOIUrl":"https://doi.org/10.1080/10425170290019838","url":null,"abstract":"In the present study, a brain abundant member of g 4-galactosyltransferase gene family with an open reading frame encoding 343 amino acids was cloned and identified from a human leukemia cell cDNA library. The putative protein sequence is about 94.8 and 94.2% identical to the 382-amino-acid mouse and rat g 4-galactosyltransferase respectively and also contains cysteine residues previously shown to be important for the function of the gene family members. This cDNA (tentatively termed g 4GalT-VIb) is identical to a recently reported cDNA (tentatively termed g 4GalT-VIa) of human g 4-galactosyltransferase except lacking one exon, suggesting that these two cDNAs are two different alternative transcripts of the same gene. Northern hybridization showed that the new alternative transcript, g 4GalT-VIb, is expressed in all 16 human tissues tested with highest level in brain and rich level in testis, thymus and pancreas, whereas weak expression was detected in lung. The g 4GalT-VIb gene was located to human chromosome 18q12.1 between markers WI-9180 and SGC35630 by radiation hybrid mapping. The genomic organization and adjacent gene content of g 4GalT-VIb were identified by comparing its cDNA sequence with three genomic sequences AC017100, AP002474 and AP001336, which showed that g 4GalT-VIb spans an ~58 u kb region and is composed of 8 exons. In addition, the most conserved motif composed of 41 residues, LXYX 3 FGGVSXL(T/S)X 2 QFX 2 INGFPNX(Y/F)WGWGGEDDDX 2 NR, was defined according to 17 sequences of g 4GalTs from seven different organisms for the first time.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"57 1","pages":"1 - 8"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84064836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019892
Elizabeth Barnes, J. Askham, Pamela F. Jones
{"title":"cDNA Cloning and Molecular Characterization of Mink SMAD4","authors":"Elizabeth Barnes, J. Askham, Pamela F. Jones","doi":"10.1080/10425170290019892","DOIUrl":"https://doi.org/10.1080/10425170290019892","url":null,"abstract":"The Smad family of proteins have been implicated as major components of the TGF g signalling pathway and are important mediators of its pleiotrophic effects. Here we describe the cloning and characterization of the mink ( Mustela vison ) ortholog of Smad4. Mink Smad4 has a high level of conservation to its human counterpart showing 96% homology at the DNA level and 99% at the amino acid level. This is in agreement with the close homologies seen for the rat and mouse orthologs. In vitro transcription and translation shows the expression of a protein of predicted molecular weight, of identical size to its human counterpart.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"52 1","pages":"47 - 53"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82836459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290029990
A. Hill, N. Brown, M. S. Hill, D. Wells
{"title":"Identification of the Xenopus laevis cDNA for EXT1: A Phylogenetic Perspective","authors":"A. Hill, N. Brown, M. S. Hill, D. Wells","doi":"10.1080/10425170290029990","DOIUrl":"https://doi.org/10.1080/10425170290029990","url":null,"abstract":"The EXT family of genes is involved in the developmentally important biosynthesis of heparan sulfate molecules. Members of the EXT family have a demonstrated role in gastrulation, wing formation in flies, and proper bone development in vertebrates. EXT family members have been isolated from several phylogenetically diverse species. We report here, the isolation of the first Xenopus laevis EXT1 family member and discuss the evolutionary origins of this gene family.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"23 1","pages":"85 - 92"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90276643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019883
J. Kitanaka, N. Kitanaka, M. Takemura, Xiao‐Bing Wang, C. Hembree, N. L. Goodman, G. Uhl
{"title":"Isolation and Sequencing of a Putative Promoter Region of the Murine G Protein β1 Subunit ( GNB1 ) Gene","authors":"J. Kitanaka, N. Kitanaka, M. Takemura, Xiao‐Bing Wang, C. Hembree, N. L. Goodman, G. Uhl","doi":"10.1080/10425170290019883","DOIUrl":"https://doi.org/10.1080/10425170290019883","url":null,"abstract":"The expression of the heterotrimeric GTP-binding protein g 1 subunit gene ( GNB1 ) is regulated by psychostimulants such as cocaine and amphetamines. Since the up-regulation appears to be one of the candidate processes of sensitization, it is necessary to elucidate the cellular and molecular mechanism of the GNB1 gene regulation for a better understanding the establishment of sensitization. In the present study, we describe the isolation and nucleotide sequence analysis of the GNB1 gene promoter region. We have isolated approximately 10 u kb of the 5'-flanking region of the mouse of GNB1 gene and found potential elements involved in putative transcriptional control of the GNB1, such as AP1, AP2, Sp1, cyclic AMP response element, and nuclear factor s B recognition sites, within the sequences 0.3 u kb upstream from the putative transcription start site. This region was highly rich in G+C content, but lacked TATA or CATT boxes. Comparing the nucleotide sequence of the cDNA clone with the human genome databases using the blast program a region containing putative exon 1 and promoter of the human GNB1 gene in chromosome 1 was found. The cloning and sequence analysis of an extensive portion of the 5'-flanking regulatory region of the GNB1 gene provides new insights into the factors involved in the regulation by psychostimulants of GNB1 expression.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"39 1","pages":"39 - 45"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85039292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290030060
Jiwang Chen, C. Tauer, Yinghua Huang
{"title":"Nucleotide Sequences of the Internal Transcribed Spacers and 5.8S Region of Nuclear Ribosomal DNA In Pinus taeda L. and Pinus echinata Mill.","authors":"Jiwang Chen, C. Tauer, Yinghua Huang","doi":"10.1080/10425170290030060","DOIUrl":"https://doi.org/10.1080/10425170290030060","url":null,"abstract":"The 615-bp nucleotide sequences of the first partial internal transcribed spacer (ITS-1), 5.8S rDNA and ITS-2 region from Pinus taeda L. (loblolly pine) and Pinus echinata Mill. (shortleaf pine) are reported. The two pine species show the same nucleotide sequences in this region, which indicates their close phylogenetic relationship. However, our reported nucleotide sequence in this region from shortleaf pine is different from the previous report for shortleaf pine in GenBank (accession number: AF037016). Our PCR-RFLP analysis of this region confirms our sequencing data. This correction is important for pine phylogenetic studies because it is located in the conserved 5.8S rDNA region.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"188 1","pages":"129 - 131"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83052689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019847
R. Martínez-Arias, J. Bertranpetit, D. Comas
{"title":"Determination of Haploid DNA Sequences in Humans: Application to the Glucocerebrosidase Pseudogene","authors":"R. Martínez-Arias, J. Bertranpetit, D. Comas","doi":"10.1080/10425170290019847","DOIUrl":"https://doi.org/10.1080/10425170290019847","url":null,"abstract":"Variation analyses in the human genome at the sequence level, especially human genetic population analysis and genetic epidemiology, are hampered by the difficulty to ascertain haplotypes on autosomal regions. We have designed a new methodological approach to obtain autosomal haploid sequences from diploid organisms. First, genotypes are unambiguously determined through long-range PCR and diploid DNA sequencing. Second, cloning the whole PCR-amplified segment and sequencing a single clone for those fragments that presented a heterozygous position discern the allelic phase. The second allele is deduced from the genotype, and the phase reconfirmed by sequencing a second clone. A hundred human chromosomes were analysed for a 5.4 u kb encompassing the glucocerebrosidase pseudogene on human chromosome 1. Haplotypes were unambiguously ascertained for all samples. The manner to combine the used techniques makes this approach a novelty. Haploid sequences from diploid organisms are obtained in a less time consuming and more accurate manner than in other used procedures.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"22 1","pages":"13 - 9"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75932658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290023392
E. Willerslev, T. Mourier, A. Hansen, B. Christensen, I. Barnes, S. Salzberg
{"title":"Contamination in the Draft of the Human Genome Masquerades As Lateral Gene Transfer","authors":"E. Willerslev, T. Mourier, A. Hansen, B. Christensen, I. Barnes, S. Salzberg","doi":"10.1080/10425170290023392","DOIUrl":"https://doi.org/10.1080/10425170290023392","url":null,"abstract":"(2002). Contamination in the Draft of the Human Genome Masquerades As Lateral Gene Transfer. DNA Sequence: Vol. 13, No. 2, pp. 75-76.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"15 1","pages":"75 - 76"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88845610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019874
P. Chimwamurombe, B. Wingfield, A. Botha, M. Wingfield
{"title":"Molecular Analysis of an Endopolygalacturonase Gene from a Eucalyptus Canker Pathogen, Cryphonectria cubensis","authors":"P. Chimwamurombe, B. Wingfield, A. Botha, M. Wingfield","doi":"10.1080/10425170290019874","DOIUrl":"https://doi.org/10.1080/10425170290019874","url":null,"abstract":"Cryphonectria cubensis causes a serious Eucalyptus canker disease. Fungal cell wall degrading enzymes (CWDEs) are important during the early stages of interaction of the fungus with Eucalyptus. To improve our understanding of the molecular regulation of the interaction of Eucalyptus and C. cubensis, the relevant genes involved in this interaction should be identified, cloned and studied. The aim of this study was, therefore, to clone the endopolygalacturonase (endoPG) gene of C. cubensis. C. cubensis was grown on a medium supplemented with Eucalyptus cell wall extracts. Degenerate primers were designed to amplify part of the endoPG gene from C. cubensis genomic DNA. The resulting sequence was used to design specific primers for use in inverse PCR to amplify the entire endoPG gene of C. cubensis ( ccen-1 ). The endoPG sequence of C. cubensis has 93% amino acid sequence similarity to that of the chestnut blight pathogen, Cryphonectria parasitica.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"43 1","pages":"33 - 37"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80819851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290029981
D. Bodenmiller, C. Baxter, David V. Hansen, S. Potter
{"title":"Phylogenetic Analysis of Hoxa 11 Sequences Reveals Absence of Transposable Elements, Conservation of Transcription Factor Binding Sites, and Suggests Antisense Coding Function","authors":"D. Bodenmiller, C. Baxter, David V. Hansen, S. Potter","doi":"10.1080/10425170290029981","DOIUrl":"https://doi.org/10.1080/10425170290029981","url":null,"abstract":"Nine thousand and eighty-eight base pairs of the chicken Hoxa 11 gene, including 8470 bases 5' of the translation start site were sequenced, and the characteristics of the upstream sequence investigated. Consistent with previous findings that middle repetitive elements are rare in the HoxA cluster, no repetitive elements were found other than simple oligonucleotide repeats. Multiple and pairwise alignments of the chicken upstream sequence with its human and mouse orthologs revealed multiple regions of 80% or higher homology across species. For the chicken, these regions were separated by sequences with no significant homology to human, mouse, or in most cases any other Genbank sequences. Selective clustering of transcription factor binding motifs was found to occur within the conserved homologous regions, suggesting evolutionary conservation of critical regulatory sequences. Of particular interest, seven conserved Cdx binding sites were found in the Hoxa 11 promoter, suggesting regulation by a non-clustered Caudal homeobox gene. Previous analysis of the mouse and human Hoxa 11 genes found a conserved antisense transcript, of unknown function. The chicken Hoxa 11 antisense strand included a conserved open reading frame capable of encoding 168 amino acids. Comparison of this region in mouse and chicken showed seven insertion/deletions, with each a multiple of three bases, thereby preserving open reading frame.","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"17 1","pages":"77 - 83"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87409485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
DNA SequencePub Date : 2002-01-01DOI: 10.1080/10425170290019919
F. Kugawa, Masatada Aoki
{"title":"Genomic Cloning of Xenopus TFIIS (TCEA1) and Identification of Its Transcription Start Site","authors":"F. Kugawa, Masatada Aoki","doi":"10.1080/10425170290019919","DOIUrl":"https://doi.org/10.1080/10425170290019919","url":null,"abstract":"We previously cloned the cDNA of the transcription factor TFIIS (SII) from Xenopus laevis and showed that its expression was not constant during Xenopus development. To investigate its regulation, we cloned the genomic DNA of Xenopus TFIIS, focusing on the 5'-promoter region. Here, we present the Xenopus TFIIS genomic sequence ( m 1730 to +214) and transcription start site (cap site). We define the position of the primary cap site as the adenine located 142 u bp upstream from the adenine of the ATG (Met) codon. Another putative start-site region, where 13 transcriptional start sites are clustered within 12 u bp, was mapped about 100 u bp downstream of the primary cap site. Although a computer search found putative trans -element binding sites proximal to two Xenopus TFIIS transcription start sites, we could not identify typical \"TATA\" or \"CAATT\" boxes upstream of the primary cap site, probably owing to TFIIS's character as a \"house keeping gene\".","PeriodicalId":11381,"journal":{"name":"DNA Sequence","volume":"57 1","pages":"55 - 60"},"PeriodicalIF":0.0,"publicationDate":"2002-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79004908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}