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  • multigene family  (2)
  • Arabidopsis  (1)
  • Nucleotide sequence  (1)
  • 1985-1989  (4)
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Keywords
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Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Four genes in two diverged subfamilies encode the ribulose-1,5-bisphosphate carboxylase small subunit polypeptides of Arabidopsis thaliana (1988)
    Springer
    Plant molecular biology 11 (1988), S. 745-759 
    Details
    ISSN: 1573-5028
    Keywords: Arabidopsis thaliana ; multigene family ; ribulose-1,5-bisphosphate carboxylase ; sequence ; small subunit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The multigene family encoding the small subunit polypeptides of ribulose-1,5-bisphosphate carboxylase/oxygenase in the crucifer Arabidopsis thaliana has been isolated and the organization and structure of the individual members determined. The family consists of four genes which have been divided into two subfamilies on the basis of linkage and DNA and amino acid sequence similarities. Three of the genes, designated ats1B, ats2B, and ats3B, reside in tandem on an 8 kb stretch of the chromosome. These genes share greater than 95% similarity in DNA sequence and encode polypeptides identical in length and 96.7% similar in amino acid sequence. The fourth gene, ats1A, is at least 10 kb removed from, or completely unlinked to the B subfamily. The B subfamily genes are more similar to each other than to ats1A in nucleotide and amino acid sequence. All four genes are interupted by two introns whose placement within the coding region of the genes is conserved. The introns of the B subfamily genes are similar in length and nucleotide sequence, but show no similarity to the introns of ats1A. Comparison of the DNA sequences within the immediate 5′ and 3′ flanking sequences among the genes revealed only limited regions of homology. S1 analysis shows that all four genes are expressed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00019515
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  • 2
    Electronic Resource
    Electronic Resource
    Isolation of a cDNA encoding mitochondrial citrate synthase from Arabidopsis thaliana (1989)
    Springer
    Plant molecular biology 13 (1989), S. 411-418 
    Details
    ISSN: 1573-5028
    Keywords: citrate synthase ; plant nuclear gene ; mitochondrial import ; Arabidopsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We isolated a cDNA clone from Arabidopsis thaliana encoding the TCA cycle enzyme, citrate synthase. The plant enzyme displays 48% and 44% amino acid residue similarity with the pig, and yeast polypeptides, respectively. Many proteins, including citrate synthase, which are destined to reside in organelles such as mitochondria and chloroplasts, are the products of the nucleocytoplasmic protein synthesizing machinery and are imported post-translationally to the site of function. We present preliminary investigations toward the establishment of an in vitro plant mitochondrial import system allowing for future studies to dissect this process in plants where the cell must differentiate between mitochondria and chloroplast and direct their polypeptides appropriately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015553
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  • 3
    Electronic Resource
    Electronic Resource
    Genomic organization, sequence analysis and expression of all five genes encoding the small subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase from tomato (1987)
    Springer
    Molecular genetics and genomics 209 (1987), S. 247-256 
    Details
    ISSN: 1617-4623
    Keywords: Tomato ; Nucleotide sequence ; Ribulose-1,5-bisphosphate carboxylase ; Multigene family ; Differential expression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary We have cloned and sequenced all five members of the gene family for the small subunit (rbcS) of ribulose-1,5-bisphosphate carboxylase/oxygenase from tomato, Lycopersicon esculentum cv. VFNT LA 1221 cherry line. Two of the five genes, designated Rbcs-1 and Rbcs-2, are present as single genes at individual loci. Three genes, designated Rbcs-3A, Rbcs-3B and Rbcs-3C, are organized in a tandem array within 10 kb at a third independent locus. The Rbcs-2 gene contains three introns; all the other members of the tomato gene family contain two introns. The coding sequence of Rbcs-1 differs by 14.0% from that of Rbcs-2 and by 13.3% from that of Rbcs-3 genes. Rbcs-2 shows 10.4% divergence from Rbcs-3. The exon and intron sequences of Rbcs-3A are identical to those of Rbcs-3C, and differ by 1.9% from those of Rbcs-3B. Nucleotide sequence analysis suggests that the five rbcS genes encode four different precursors, and three different mature polypeptides. S1 nuclease mapping of the 5′ end of rbcS mRNAs revealed that the mRNA leader sequences vary in length from 8 to 75 nucleotides. Northern analysis using gene-specific oligonucleotide probes from the 3′ non-coding region of each gene reveals a four to five-fold difference among the five genes in maximal steady-state mRNA levels in leaves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00329650
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  • 4
    Electronic Resource
    Electronic Resource
    The tomato Cab-4 and Cab-5 genes encode a second type of CAB polypeptides localized in Photosystem II (1987)
    Springer
    Plant molecular biology 9 (1987), S. 109-120 
    Details
    ISSN: 1573-5028
    Keywords: Lycopersicon esculentum ; multigene family ; cDNA clones ; plant evolution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The photosynthetic apparatus of plant chloroplasts contains two photosystems, termed Photosystem I (PSI) and Photosystem II (PSII). Both PSI and PSII contain several types of chlorophyll a/b-binding (CAB) polypeptides, at least some of which are structurally related. It has been previously shown that multiple genes encoding one type of PSII CAB polypeptides exist in the genome of many higher plants. In tomato, there are at least eight such genes, distributed in three independent loci. Genes encoding a second type of CAB polypeptides have been isolated from several plant species, but the precise location of the gene products has not been determined. Here we show that tomato has two unlinked genes encoding this second type and that this type of CAB polypeptide is also localized in PSII.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015643
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