1. Analysis of frequency (frq) clock gene homologs: evidence for a helix-turn-helix transcription factor

   • M. T. Lewis
   • L. W. Morgan
   • J. F. Feldman

   ORIGINAL PAPER Pages: 401 - 414

2. A locus coding for putative non-ribosomal peptide/polyketide synthase functions is mutated in a swarming-defective Proteus mirabilis strain

   • S. Gaisser
   • C. Hughes

   ORIGINAL PAPER Pages: 415 - 427

3. Characterization of upstream activating sequences involved in activation and regulation of pho4 expression in Schizosaccharomyces pombe

   • N. Silvestre
   • E. Jacobs

   ORIGINAL PAPER Pages: 428 - 438

4. UBI4, the polyubiquitin gene of Saccharomyces cerevisiae, is a heat shock gene that is also subject to catabolite derepression control

   • R. Watt
   • P. W. Piper

   ORIGINAL PAPER Pages: 439 - 447

5. The 28.5-kDa iron-sulfur protein of mitochondrial complex I is encoded in the nucleus in plants

   • K. Schmidt-Bleek
   • V. Heiser
   • L. Grohmann

   ORIGINAL PAPER Pages: 448 - 454

6. Tomato chromosome 1: high resolution genetic and physical mapping of the short arm in an interspecific Lycopersicon esculentum×L. peruvianum cross

   • G. Bonnema
   • D. Schipper
   • P. Zabel

   ORIGINAL PAPER Pages: 455 - 462

7. Molecular cloning of a gene required for DNA replication in Ustilago maydis

   • K. Onel
   • W. K. Holloman

   ORIGINAL PAPER Pages: 463 - 468

8. The Kluyveromyces lactis equivalent of casein kinase I is required for the transcription of the gene encoding the low-affinity glucose permease

   • J. Blaisonneau
   • H. Fukuhara
   • M. Wésolowski-Louvel

   ORIGINAL PAPER Pages: 469 - 477

9. Chromosomal deletions in Streptomyces griseus that remove the afsA locus

   • A. Lezhava
   • D. Kameoka
   • H. Kinashi

   ORIGINAL PAPER Pages: 478 - 483

10. The Listeria monocytogenes gene ctpA encodes a putative P-type ATPase involved in copper transport

    • M. S. Francis
    • C. J. Thomas

    ORIGINAL PAPER Pages: 484 - 491

11. The S-adenosyl-l-homocysteine hydrolase of Drosophila melanogaster : identification, deduced amino acid sequence and cytological localization of the structural gene

    • C. Caggese
    • G. Ragone
    • R. Caizzi

    ORIGINAL PAPER Pages: 492 - 498

12. Organisation of the bph gene cluster of transposon Tn4371, encoding enzymes for the degradation of biphenyl and 4-chlorobiphenyl compounds

    • J. W. Lengeler C. Merlin
    • D. Springael
    • A. Toussaint

    ORIGINAL PAPER Pages: 499 - 506

13. Glutamic acid-371 of the barnase homology domain in RNA polymerase II is not required for SII-activated RNA cleavage

    • W. Powell
    • J. C. Lennon
    • D. Reines

    ORIGINAL PAPER Pages: 507 - 511

14. Unique genomic sequences in human chromosome 16p are conserved in the great apes

    • S. T. Tarzami
    • A. M. Kringstein
    • R. S. Verma

    SHORT COMMUNICATION Pages: 512 - 514

15. Functional relationship between Escherichia coli RNase E and the CafA protein

    • M. Wachi
    • G. Umitsuki
    • K. Nagai

    SHORT COMMUNICATION Pages: 515 - 519

16. The Aspergillus nidulans genes chsA and chsD encode chitin synthases which have redundant functions in conidia formation

    • T. Motoyama
    • Makoto Fujiwara
    • M. Takagi

    ORIGINAL PAPER/CORRIGENDUM Pages: 520 - 528