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  • 1980-1984  (2)
Materialart
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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Molecular genetics and genomics 180 (1980), S. 57-65 
    ISSN: 1617-4623
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary We report the nucleotide sequence of a promoter recognized by RNA polymerase from the gram-positive bacterium Bacillus subtilis. This promoter, which was isolated from B. subtilis phage SP01 DNA, is homologous to promoters for Escherichia coli RNA polymerase; the sequences of the “-35 region” and the “Pribnow box” were 5′TTGACT and 5′CATAAT, respectively (T is the thymine analog 5-hydroxymethyluracil in SP01 DNA). These sequences each differed by only a single base pair from the preferred sequences for E. coli promoters. Not surprisingly, the SP01 promoter was actively transcribed in vitro by E. coli RNA polymerase as well as by B. subtilis RNA polymerase.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1617-4623
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary We have determined the nucleotide sequence of twoBacillus subtilis promoters (veg andtms) that are utilized by the principal form ofB. subtilis RNA polymerase found in vegetative cells (σ55-RNA polymerase) and have compared our sequences to those of several previously reportedBacillus promoters. Hexanucleotide sequences centered approximately 35 (the “-35” region) and 10 (the “-10” region) base pairs upstream from theveg andtms transcription startpoints (and separated by 17 base pairs) corresponded closely to the consensus hexanucleotides (TTGACA and TATAAT) attributed toEscherichia coli promoters. Conformity to the preferred -35 and -10 sequences may not be sufficient to promote efficient utilization byB. subtilis RNA polymerase, however, since three promoters (veg, tms andE. coli tac) that conform to these sequences and that are utilized efficiently byE. coli RNA polymerase were used with highly varied efficiencies byB. subtilis RNA polymerase. We have also analyzed mRNA sequences in DNA located downstream from eightB. subtilis chromosomal and phage promoters for nucleotide sequences that might signal the initiation of translation. In accordance with the rules of McLaughlin, Murray and Rabinowitz (1981), we observe mRNA nucleotide sequences with extensive complementarity to the 3′ terminal region ofB. subtilis 16S rRNA, followed by an initiation codon and an open reading frame.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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