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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 59 (1989), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract A gene library of Clostridium acetobutylicum ATCC824 was constructed in the plasmid vector pEcoR251. The library was tested for the presence of starch hydrolyzin clones. One clone in which the recombinant plasmid, pVP101, conferred α-amylase activity to the Escherichia coli host cell, was detected. The gene is carried on a 3.45-kbp BglII restriction fragment. A detailed physical map of pVP101 is presented.
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  • 2
    ISSN: 1546-1696
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: [Auszug] Converting the complete genome sequence of Candida albicans into meaningful biological information will require comprehensive screens for identifying functional classes of genes. Most systems described so far are not applicable to C. albicans because of its difficulty with mating, its diploid ...
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  • 3
    ISSN: 0749-503X
    Keywords: yeast ; genome sequencing ; chromosome IV ; VMA1 ; TFP1 ; YL41A ribosomal protein ; ATPase inhibitor ; PPH22 ; α-isopropylmalate synthase ; homocitrate synthase ; nifV ; VDE ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of a 12·5 kbp segment of the left arm of chromosome IV is described. Five open reading frames (ORFs) longer than 100 amino acids were detected, all of which are completely confined to the 12·5 kbp region. Two ORFs (D1271 and D1286) correspond to previously sequenced genes (PPH22 and VMA1 or TFP1, respectively). ORF D1298 shows the characteristics of α-isopropylmalate and homocitrate synthase genes and is similar to the nifV gene of Azotobacter vinelandii. Two more ORFs have no apparent homologue in the data libraries. Conversely, two smaller ORFs of 25 and 85 amino acids encoding the ribosomal protein YL41A and an ATPase inhibitor, respectively, were detected. Although a substantial part of the 12·5 kbp fragment apparently lacks protein-coding characteristics, no other elements, such as tRNA genes or transposons, were found.The nucleotide sequence data reported in this paper will appear in the EMBL, GenBank and DDBJ Nucleotide Sequence Databases under the Accession Number X83276.
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  • 4
    ISSN: 0749-503X
    Keywords: Saccharomyces cerevisiae ; genome sequencing ; chromosome XIV ; SPO1 ; ribosomal protein genes ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequencing of 8887 bp of the left arm of chromsome XIV is described. The sequence includes the centromeric region. Both strands were sequenced with an average redundancy of 5·09 per base pair. The overall G+C content is 37·3% (39·2% for putative coding regions versus 32·5% for non-coding regions). Six open reading frames (ORFs) greater than 100 amino acids were detected, all of which are completely confined to the 8·9 kbp region. Codon frequencies of the six ORFs agree with codon usage in Saccharomyces cerevisiae and all show the characteristics of low-level expressed genes. Comparison of the translated sequences with protein sequences in data bases suggests the presence of two ORFs (N2014 and N2007) encoding ribosomal proteins, the latter of which is the previously sequenced MRP7 gene. Another ORF (N2012) could encode a membrane-associated protein since it contains secretory signal sequence and two presumed transmembrane helices. This protein might be involved in mitochondrial energy transfer. ORF N2016 is immediately adjacent to the centromere, suggesting that it corresponds to the SPO1 gene, which is very tightly linked to the centromere at the left arm side of chromosome XIV (Mortimer et al., 1989). The sequence has been deposited in the EMBL, GenBank and DDBJ Nucleotide Sequence Databases under the Accession Number X77114.
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  • 5
    ISSN: 0749-503X
    Keywords: Saccharomyces cerevisiae ; lysine ; homocitrate synthase ; nifV gene ; Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: In Saccharomyces cerevisiae, most of the LYS structural genes have been identified except the genes encoding homocitrate synthase and α-aminoadipate aminotransferase. Expression of several LYS genes responds to an induction mechanism mediated by the product of LYS14 and an intermediate of the pathway, α-aminoadipate semialdehyde (αAASA) as an inducer. This activation is modulated by the presence of lysine in the growth medium leading to an apparent repression. Since the first enzyme of the pathway, homocitrate synthase, is feedback inhibited by lysine, it could be a major element in the control of αAASA supply.During the sequencing of chromosome IV of S. cerevisiae, the sequence of ORF D1298 showing a significant similarity with the nifV gene of Azotobacter vinelandii was reported. Disruption and overexpression of ORF D1298 demonstrate that this gene, named LYS20, encodes a homocitrate synthase. The disrupted segregants are able to grow on minimal medium and exhibit reduced but significant homocitrate synthase indicating that this activity is catalysed by at least two isoenzymes. We have also shown that the product of LYS20 is responsible for the greater part of the lysine production.The different isoforms are sensitive to inhibition by lysine but only the expression of LYS20 is strongly repressed by lysine. The N-terminal end of homocitrate synthase isoform coded by LYS20 contains no typical mitochondrial targeting sequence, suggesting that this enzyme is not located in the mitochondria.
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  • 6
    ISSN: 0749-503X
    Keywords: Yeast ; chromosome XIV ; citrate synthase ; FUN34 ; PRP2 ; RPC34 ; SIS1 ; URK1 ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of 23·6 kb of the right arm of chromosome XIV is described, starting from the centromeric region. Both strands were sequenced with an average redundancy of 4·87 per base pair. The overall G+C content is 38·8% (42·5% for putative coding regions versus 29·4% for non-coding regions). Twelve open reading frames (ORFs) greater than 100 amino acids were detected. Codon frequencies of the twelve ORFs agree with codon usage in Saccharomyces cerevisiae and all show the characteristics of low level expressed genes. Five ORFs (N2019, N2029, N2031, N2048 and N2050) are encoded by previously sequenced genes (the mitochondrial citrate synthase gene, FUN34, RPC34, PRP2 and URK1, respectively). ORF N2052 shows the characteristics of a transmembrane protein. Other elements in this region are a tRNAPro gene, a tRNAAsn gene, a τ34 and a truncated δ34 element. Nucleotide sequence comparison results in relocation of the SIS1 gene to the left arm of the chromosome as confirmed by colinearity analysis. The nucleotide sequence data reported in this paper will appear in the EMBL, GenBank and DDBJ Nucleotide Sequence Databases under the accession number X77395.
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  • 7
    ISSN: 0749-503X
    Keywords: MGT1 ; SHM1 ; ASF2 ; WEB1 ; SNF3 ; ARF1 ; L35 ribosomal protein ; sugar transport protein ; Saccharomyces carlsbergensis, sake, diastaticus ; Life Sciences ; Life Sciences (general)
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of 22,846 bp of the left arm of chromosome IV is described. Twelve open reading frames (ORFs) greater than 100 triplets were detected, one of which extends into an adjacent cosmid. Two of the ORFs may contain an intron. One of these is an L35 ribosomal protein gene. Five ORFs (D1204, D1214, D1219, D1234 and D1244) encode previously sequenced genes (MGT1, SHM1, ASF2, SNF3 and ARF2, respectively). The nucleotide sequence of a sixth ORF (D1229) is quite similar to the WEB1 gene, which appeared in the DNA databases shortly after finishing the sequence reported here. It is not clear whether or not WEB1 and D1229 represent one and the same gene. The co-linearity of the reported DNA sequences with the genome of strains from Saccharomyces cerevisiae subspecies carlsbergensis, sake and diastaticus was assessed by comparative PCR with overlapping primer sets. The nucleotide sequence data reported in this paper will appear in the EMBL, GenBank and DDBJ Nucleotide Sequence Databases under Accession Number X83276. © 1996 John Wiley & Sons, Ltd.
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  • 8
    ISSN: 0749-503X
    Keywords: yeast ; genome sequencing ; chromosome VII ; long-range PCR ; clone instability ; ARO2 ; RPL9A ; TIP1 ; MRF1 ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of 22 803 bp on the left arm of chromosome VII was determined by polymerase chain reaction-based approaches to compensate for the unstable character of cosmid clones from this region of the chromosome. The coding density of the sequence is particularly high (more than 83%). Twelve open reading frames (ORFs) longer than 300 bp were found, two of which (at the left side) have been described previously (James et al., 1995) after sequencing of an overlapping cosmid. Four other ORFs correspond to published sequences of the known genes ARO2, RPL9A, TIP1 and MRF1. ARO2 codes for chorismate synthetase, RPL9A for protein L9 of the large ribosomal subunit and MRF1 for a mitochondrial translation release factor. The TIP1 product interacts with Sec20p and is thus involved in transport from endoplasmic reticulum to Golgi. Five of the remaining ORFs have not been identified previously, while the sixth (YGL142c) has been partially sequenced as it lies 5′ upstream of MRF1. These six ORFs are relatively large (between 933 and 3657 nucleotides). YGL146c, YGL142c, YGL140c and YGL139w have no significant homology to any protein sequence presently available in the public databases, but show two, nine, nine and eight putative transmembrane spans, respectively. YGL144c has a serine active site signature of lipases. YGL141w has limited homology to several human proteins, one of which mediates complex formation between papillomavirus E6 oncoprotein and tumor suppressor protein p53. The sequence reported in this paper has been deposited in the EMBL DNA data library under Accession Number X99960.©1997 John Wiley & Sons, Ltd.
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  • 9
    ISSN: 0749-503X
    Keywords: yeast ; genome sequencing ; chromosome XII ; SNR6 ; YAP3 ; HOG1 ; ZFM1 ; FLO1 ; Arg-tRNA ; flocculation ; TPR motif ; crn ; cell cycle control ; transcriptional factor ; pseudogene ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of 37 639 bp of the right arm of chromosome XII has been determined. Twenty-five open reading frames (ORFs) longer than 300 bp were detected, two of which extend into the flanking cosmids. Only two (L2931 and L2961) of the 25 ORFs correspond to previously sequenced genes (HOG1 and YAP3, respectively). Another ORF is distinct from YAP3 but shows pronounced similarity to it. About half of the remaining ORFs show similarity to other genes or display characteristic protein signatures. In particular, ORF L2952 has striking homology with the probable cell cycle control protein crn of Drosophila melanogaster. L2949 has significant similarity to the human ZFM1 (related to a potential suppressor oncogene) and mouse CW17R genes, though it lacks the carboxy-terminal oligoproline and oligoglutamine stretches encoded by these mammalian genes. The small ORF L2922 is similar to part of the much larger yeast flocculation gene FLO1. Other sequences found in the 37 639 bp fragment are one delta and one solo-sigma element, the tRNA-Arg3 gene, the small nuclear RNA gene SNR6 and three ARS consensus sequences. The nucleotide sequence data reported in this paper are available in the EMBL, GenBank and DDBJ Nucleotide Sequence Databases under the Accession Number X89514. ©1997 John Wiley & Sons, Ltd.
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  • 10
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