Zinc responsive element gene transcriptions: Difference between revisions

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* [[A1BG response element positive results]]
* [[A1BG response element positive results]]
* [[Complex locus A1BG and ZNF497]]
* [[Complex locus A1BG and ZNF497]]
* [[Zap1p gene transcriptions]]
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Revision as of 17:27, 15 March 2021

Associate Editor(s)-in-Chief: Henry A. Hoff

"A robust set of genes that responded consistently to Zn limitation was identified, and the set enabled the definition of the Zn-specific Zap1p regulon, comprised of 26 genes and characterized by a broader zinc-responsive element consensus (MHHAACCBYNMRGGT) than so far described."[1]

"In order to better define the Zap1p regulon, Lyons and coworkers analyzed the genome-wide transcriptional response of a S. cerevisiae zap1 mutant strain and a control strain to zinc abundance or depletion (50). A combinatorial analysis identified a subset of 46 zinc-responsive genes whose expression was reduced in the zap1 mutant and that possessed a zinc-responsive element (ZRE) (5′-ACCYYNAAGGT-3′). Among the members of this updated defined Zap1p regulon were the well-characterized plasma membrane, vacuole, and endoplasmic reticulum zinc transporters."[1]

Consensus sequences

A zinc-responsive element consensus (MHHAACCBYNMRGGT) is (A/C)(A/C/T)(A/C/T)AACC(C/G/T)(C/T)N(A/C)(A/G)GGT.[1]

ZRE samplings

Copying a responsive elements consensus sequence (A/C)(A/C/T)(A/C/T)AACC(C/G/T)(C/T)N(A/C)(A/G)GGT and putting the sequence in "⌘F" finds none between ZNF497 and A1BG or none between ZSCAN22 and A1BG as can be found by the computer programs. The addition of degenerate nucleotides increases the possible occurrences to 216 from 1.

For the Basic programs testing consensus sequence (A/C)(A/C/T)(A/C/T)AACC(C/G/T)(C/T)N(A/C)(A/G)GGT (starting with SuccessablesZRE.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are, are looking for, and found:

  1. negative strand, negative direction, looking for (A/C)(A/C/T)(A/C/T)AACC(C/G/T)(C/T)N(A/C)(A/G)GGT, 0.
  2. positive strand, negative direction, looking for AAAAAAAA, 0.
  3. positive strand, positive direction, looking for AAAAAAAA, 0.
  4. negative strand, positive direction, looking for AAAAAAAA, 0.
  5. complement, negative strand, negative direction, looking for TTTTTTTT, 0.
  6. complement, positive strand, negative direction, looking for (G/T)(A/G/T)(A/G/T)TTGG(C/G/A)(A/G)N(G/T)(C/T)CCA, 0.
  7. complement, positive strand, positive direction, looking for TTTTTTTT, 0.
  8. complement, negative strand, positive direction, looking for TTTTTTTT, 0.
  9. inverse complement, negative strand, negative direction, looking for TTTTTTTT, 0.
  10. inverse complement, positive strand, negative direction, looking for ACC(C/T)(G/T)N(A/G)(A/C/G)GGTT(A/G/T)(A/G/T)(G/T), 0.
  11. inverse complement, positive strand, positive direction, looking for TTTTTTTT, 0.
  12. inverse complement, negative strand, positive direction, looking for TTTTTTTT, 0.
  13. inverse negative strand, negative direction, looking for TGG(A/G)(A/C)N(C/T)(C/G/T)CCAA(A/C/T)(A/C/T)(A/C), 0.
  14. inverse positive strand, negative direction, looking for AAAAAAAA, 0.
  15. inverse positive strand, positive direction, looking for AAAAAAAA, 0.
  16. inverse negative strand, positive direction, looking for AAAAAAAA, 0.

ZRE UTR gene transcriptions

ZRE core promoters

ZRE proximal promoters

ZRE distal promoters

Acknowledgements

The content on this page was first contributed by: Henry A. Hoff.

See also

References

  1. 1.0 1.1 1.2 Raffaele De Nicola, Lucie A. Hazelwood, Erik A. F. De Hulster, Michael C. Walsh, Theo A. Knijnenburg, Marcel J. T. Reinders, Graeme M. Walker, Jack T. Pronk, Jean-Marc Daran, Pascale Daran-Lapujade (December 2007). "Physiological and Transcriptional Responses of Saccharomyces cerevisiae to Zinc Limitation in Chemostat Cultures". Applied and Environmental Microbiology. 73 (23): 7680–92. doi:10.1128/AEM.01445-07. PMID 17933919. Retrieved 10 February 2021.

External links