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  • 1
    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.
    Additional Material: 4 Ill.
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  • 2
    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.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 3
    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.
    Additional Material: 1 Ill.
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  • 4
    ISSN: 0749-503X
    Keywords: yeast ; genome sequencing ; chromosome VII ; multiple drug resistance ; oligomycin resistance ; maltose fermentation ; maltase ; α-glucosidase ; MAL1 ; ZUO1 ; BGL2 ; BIO2 ; Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: The nucleotide sequence of 35 400 bp at approximately 10 kb from the right telomere of chromosome VII was determined. The segment contains the MAL1 locus, one of the five unlinked loci sufficient for maltose utilization. Until now, each of these loci was considered to contain three genes (for regulator, permease and α-glucosidase), but a fourth gene, presumably an extra α-glucosidase gene, was found at MAL1 adjacent to the usual cluster of three genes. The two glucosidase genes are present in opposite orientation, forming an inverted repeat structure. In addition to the four genes at MAL1, there are 11 complete, non-overlapping open reading frames (ORFs) longer than 300 bp in the sequence presented here. A new ABC transporter gene (YGR281w), required for oligomycin resistance was found (YOR1; Katzman et al., 1995), and the previously sequenced BGL2 (YGR282c), ZUO1 (YGR285c) and BIO2 (YGR286c) genes were located. The sequence of BIO2, a biotin synthetase gene, required substantial correction and the size of Bio2p is 375, rather than 356, amino acids. Two ORFs show rather weak similarities to animal genes: YGR278w to an unknown ORF of Caenorhabditis elegans and YGR284c to the murine Surf-4, a member of a cluster of at least four housekeeping genes. The remaining five ORFs do not encode known functions, but three of these show weak to high similarities to other ORFs in the Saccharomyces cerevisiae genome and one (YGR280c) codes for a particularly lysine-rich protein. The nucleotide sequence has been deposited in the EMBL DNA data library under Accession Number X94332. ©1997 John Wiley & Sons, Ltd.
    Additional Material: 4 Ill.
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  • 5
    ISSN: 0749-503X
    Keywords: Life and Medical Sciences ; Genetics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 6
    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.
    Additional Material: 2 Ill.
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  • 7
    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.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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