Γ-interferon activated sequence gene transcriptions

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

"To ascertain whether one or both of these two ALS-GAS sites were functionally important for GH stimulation of ALS promoter activity, plasmids containing block mutations of either ALS-GAS1 [...] or ALS-GAS2 [...] were prepared in the context of the luciferase construct retaining full responsiveness to GH [...], and transfected into H4-II-E cells [...]. Mutation of the ALS-GAS1 element abolished the ability of the promoter to respond to GH [...]; mutation of the ALS-GAS2 element was without effect. Thus, an intact ALS-GAS1 element is necessary for GH stimulation of ALS promoter activity."[1]

Human genes

Interactions

Consensus sequences

"Computer analysis of the nt −653 to nt −483 region identified two sites that resemble the [γ-interferon activated sequence] GAS consensus sequence, TTNCNNNAA (19). Similar GAS-like sites have been shown to mediate the effects of various cytokines, including [growth hormone] GH, on the transcription of other genes (19, 20). The first site, TTCCTAGAA (ALS-GAS1), is located between nt −633 and nt −625; the second site, TTAGACAAA (ALS-GAS2), is located between nt −553 and nt −545."[1]

Hypotheses

  1. A1BG has no GASes in either promoter.
  2. A1BG is not transcribed by a GAS.
  3. GAS does not participate in the transcription of A1BG.

Samplings

Comparison of GAS-Like Elements Shown to Mediate the Effect of GH on Chromosomal Genes:[1]
Name of element Sequence Preferred STAT Gene and reference
Spi-GLE1 TTC TGA GAA STAT5 Rat Spi 2.1 (27)
INS-GLE TTC TGG GAA STAT5 Rat insulin (29)
CYPGHRE TTC CTG GAA STAT5 Hamster CYP3A10/6β (30)
ALS-GAS1 TTC CTA GAA STAT5 Mouse ALS (this study)
SIE TTC CCG TAA STAT1 and 3 Rat c-fos (22,57–59)
m67 TTC CCG TCA STAT1 and 3 Optimized c-fos SIE (22)

Copying a responsive elements consensus sequence AAAAAAAA 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.

For the Basic programs testing consensus sequence AAAAAAAA (starting with SuccessablesAAA.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 AAAAAAAA, 0.
  2. negative strand, positive direction, looking for AAAAAAAA, 0.
  3. positive strand, negative direction, looking for AAAAAAAA, 0.
  4. positive strand, positive direction, looking for AAAAAAAA, 0.
  5. complement, negative strand, negative direction, looking for TTTTTTTT, 0.
  6. complement, negative strand, positive direction, looking for TTTTTTTT, 0.
  7. complement, positive strand, negative direction, looking for TTTTTTTT, 0.
  8. complement, positive strand, positive direction, looking for TTTTTTTT, 0.
  9. inverse complement, negative strand, negative direction, looking for TTTTTTTT, 0.
  10. inverse complement, negative strand, positive direction, looking for TTTTTTTT, 0.
  11. inverse complement, positive strand, negative direction, looking for TTTTTTTT, 0.
  12. inverse complement, positive strand, positive direction, looking for TTTTTTTT, 0.
  13. inverse negative strand, negative direction, looking for AAAAAAAA, 0.
  14. inverse negative strand, positive direction, looking for AAAAAAAA, 0.
  15. inverse positive strand, negative direction, looking for AAAAAAAA, 0.
  16. inverse positive strand, positive direction, looking for AAAAAAAA, 0.

AAA core promoters

AAA proximal promoters

AAA 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 Guck T. Ooi, Kelley R. Hurst, Matthew N. Poy, Matthew M. Rechler, Yves R. Boisclair (1 May 1998). "Binding of STAT5a and STAT5b to a Single Element Resembling a γ-Interferon-Activated Sequence Mediates the Growth Hormone Induction of the Mouse Acid-Labile Subunit Promoter in Liver Cells". Molecular Endocrinology. 12 (5): 675–687. doi:10.1210/mend.12.5.0115. PMID 9605930. Retrieved 9 September 2020.

External links