Carbohydrate response element gene transcriptions

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

A high glucose "HG environment promotes [carbohydrate response element-binding protein] ChREBP translocation to the nucleus leading to formation of a heterodimeric complex with MLX (Max-like protein X) and binding to the carbohydrate response elements (ChoRE) of ChREBP target genes in the nucleus (14-16)."[1]

Human genes

Gene ID: 55000 is TUG1 taurine up-regulated 1 on 22q12.2: "This gene produces a long non-coding RNA that interacts with the Polycomb repressor complex and functions in the epigenetic regulation of transcription. This RNA promotes cell proliferation and is upregulated in tumor cells. It may act as a sponge for microRNAs. The homologous mouse gene is required for differentiation of retina. Alternative splicing results in multiple transcript variants."[2]

Gene expressions

Interactions

Consensus sequences

Binding sites

"The putative ChREBP binding sites ChoRE1 (CACGTGACCGGATCTTG, -324 to -308) and ChoRE2 (TCCGCCCCCATCACGTG, -298 to - 282) were mutated into CACGTGACGGATCTTG and TCCGCCCCATCACGTG respectively, where the 5-nt spacer between the two E-boxes in ChoRE motifs were shortened to 4-nt (underlined) as previously studies showed (10,35)."[1]

Inverse copies

Enhancer activity

The E-boxes in ChoRE1 and ChoRE2 are CACGTG and ATCTTG and TCCGCC and CACGTG.[1]

Promoter occurrences

Hypotheses

  1. A1BG has no Carbohydrate response elements in either promoter.
  2. A1BG is not transcribed by a Carbohydrate response element.
  3. Carbohydrate response element does not participate in the transcription of A1BG.

Samplings

Copying the E-boxes putting these sequences in "⌘F" finds: CACGTG none between ZSCAN22 and A1BG and one between ZNF497 and A1BG, ATCTTG none between ZSCAN22 and A1BG and none between ZNF497 and A1BG, and TCCGCC one between ZSCAN22 and A1BG and none between ZNF497 and A1BG, as can be found by the computer programs.

Copying the ChoRE consensus sequence 5'-ACCGGATCTTG-3' or 5'-TCCGCCCCCAT-3' 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.

Copying the core ChoRE consensus sequence 5'-ACCGG-3' or 5'-CCCAT-3' and putting the sequence in "⌘F" finds one and five between ZSCAN22 and A1BG or six and three between ZNF497 and A1BG as can be found by the computer programs.

For the Basic programs testing consensus sequence 5'-AAAAAAAA-3' (starting with SuccessablesCarb.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 5'-AAAAAAAA-3', 0.
  2. negative strand, positive direction, looking for 5'-AAAAAAAA-3', 0.
  3. positive strand, negative direction, looking for 5'-AAAAAAAA-3', 0.
  4. positive strand, positive direction, looking for 5'-AAAAAAAA-3', 0.
  5. complement, negative strand, negative direction, looking for 5'-TTTTTTTT-3', 0.
  6. complement, negative strand, positive direction, looking for 5'-TTTTTTTT-3', 0.
  7. complement, positive strand, negative direction, looking for 5'-TTTTTTTT-3', 0.
  8. complement, positive strand, positive direction, looking for 5'-TTTTTTTT-3', 0.
  9. inverse complement, negative strand, negative direction, looking for 5'-TTTTTTTT-3', 0.
  10. inverse complement, negative strand, positive direction, looking for 5'-TTTTTTTT-3', 0.
  11. inverse complement, positive strand, negative direction, looking for 5'-TTTTTTTT-3', 0.
  12. inverse complement, positive strand, positive direction, looking for 5'-TTTTTTTT-3', 0.
  13. inverse negative strand, negative direction, looking for 5'-AAAAAAAA-3', 0.
  14. inverse negative strand, positive direction, looking for 5'-AAAAAAAA-3', 0.
  15. inverse positive strand, negative direction, looking for 5'-AAAAAAAA-3', 0.
  16. inverse positive strand, positive direction, looking for 5'-AAAAAAAA-3', 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 Jianyin Long, Daniel L. Galvan, Koki Mise, Yashpal S. Kanwar, Li Li, Naravat Poungavrin, Paul A. Overbeek, Benny H. Chang, and Farhad R. Danesh (28 May 2020). "Role for carbohydrate response element-binding protein (ChREBP) in high glucose-mediated repression of long noncoding RNA Tug1" (PDF). Journal of Biological Chemistry. 5 (28). doi:10.1074/jbc.RA120.013228. Retrieved 6 October 2020.
  2. RefSeq (December 2017). "TUG1 taurine up-regulated 1 [ Homo sapiens (human) ]". 8600 Rockville Pike, Bethesda MD, 20894 USA: National Center for Biotechnology Information, U.S. National Library of Medicine. Retrieved 7 November 2020.

External links