1. Requirement for two conserved cysteine residues in the Ada protein ofEscherichia coli for transactivation of theada promoter

   • A. Taketomi
   • Y. Nakabeppu
   • M. Sekiguchi

   Original Paper Pages: 523 - 532

2. Characterization and subcellular localization of a small GTP-binding protein (Ara-4) fromArabidopsis: conditional expression under control of the promoter of the gene for heat-shock protein HSP81-1

   • Takashi Ueda
   • Toyoaki Anai
   • Hirofumi Uchimiya

   Original Paper Pages: 533 - 539

3. A genetic analysis ofbx bxd cis double mutants in theDrosophila Ultrabithorax gene

   • Antonio Martínez-Laborda
   • José Serrano-Cartagena
   • José Luis Micol

   Original Paper Pages: 540 - 546

4. Self-incompatibility (S) alleles of the rosaceae encode members of a distinct class of the T₂/S ribonuclease superfamily

   • Hidenori Sassa
   • Takeshi Nishio
   • Hiroshi Ikehashi

   Original Paper Pages: 547 - 557

5. Construction of hermes shuttle vectors: a versatile system useful for genetic complementation of transformable and non-transformableNeisseria mutants

   • Eva-Marià Kupsch
   • Dominique Aubel
   • Thomas F. Meyer

   Original Paper Pages: 558 - 569

6. recB recJ mutants ofSalmonella typhimurium are deficient in transductional recombination, DNA repair and plasmid maintenance

   • Andrés Garzón
   • Carmen R. Beuzón
   • Josep Casadesús

   Original Paper Pages: 570 - 580

7. Cis-elements important for the expression of the ADP-glucose pyrophosphorylase small-subunit are located both upstream and downstream from its structural gene

   • Paul A. Nakata
   • Thomas W. Okita

   Original Paper Pages: 581 - 592

8. Co-induction of DNA relaxation and synthesis of DnaK and GroEL proteins inEscherichia coli by expression of LetD (CcdB) protein, an inhibitor of DNA gyrase encoded by the F factor

   • Takao Kaneko
   • Tohru Mizushima
   • Kazuhisa Sekimizu

   Original Paper Pages: 593 - 600

9. Characterization of a sex-influenced modifier of gene expression and suppressor of position-effect variegation inDrosophila

   • Utpal Bhadra
   • James A. Birchler

   Original Paper Pages: 601 - 613

10. Allele-specific suppression of aSaccharomyces cerevisiae prp20 mutation by overexpression of a nuclear serine/threonine protein kinase

    • Martin Fleischmann
    • Igor Stagljar
    • Markus Aebi

    Original Paper Pages: 614 - 625

11. RNA facilitates RecA-mediated DNA pairing and strand transfer between molecules bearing limited regions of homology

    • Hidehito Kotani
    • Markus W. Germann
    • Eric B. Kmiec

    Original Paper Pages: 626 - 634

12. Molecular characterization of the lysosomal acid phosphatase fromDrosophila melanogaster

    • Hae-Jin Chung
    • Christopher Shaffer
    • Ross MacIntyre

    Original Paper Pages: 635 - 646

13. The transcriptional activatorOpaque-2 controls the expression of a cytosolic form of pyruvate orthophosphate dikinase-1 in maize endosperms

    • Massimo Maddaloni
    • Giovanna Donini
    • Mario Motto

    Original Paper Pages: 647 - 654