B box gene transcriptions

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

"The mP2 EB fragment used for binding was the 118 nucleotide fragment extending from the Dde I site at position -140 to the Dde I site at position -23 [...]. This fragment contains the GC, E, B, CAAT, and TATA boxes."[1]

Consensus sequences

TGGGCA is a B-box.[1]

"The human [Transforming growth factor b1] TGFB1 promoter region contains two binding sequences for [Activator protein-1] AP-1, designated AP-1 box A (TGACTCT) and box B (TGTCTCA), which mediate the upregulation of promoter activity via a PKC-dependent pathway after exposure of cells to a high-glucose environment (Refs 37, 38)."[2]

Hypotheses

  1. A1BG has neither a B-box (TGGGCA) nor a box B (or B1 box) (TGTCTCA) in either promoter.
  2. A1BG is not transcribed by either B box.
  3. Neither B box participates in the transcription of A1BG.

B box samplings

Copying the above consensus B box and putting the sequences in "⌘F" locates any consensus sequences in any nucleotide positions as may be found by the computer programs.

One 3'-TGGGCA-5' shows up at about -600 nucleotides from the TSS between ZSCAN22 and A1BG as A1BG is approached from ZSCAN22 on the positive strand. This warrants testing with the computer programs.

  1. Negative strand, negative direction: 0.
  2. Positive strand, negative direction: 0.
  3. Negative strand, positive direction: 0.
  4. Positive strand, positive direction: 0.
  5. Inverse complement, negative strand, negative direction: 0.
  6. Inverse complement, positive strand, negative direction: 0.
  7. Inverse complement, negative strand, positive direction: 0.
  8. Inverse complement, positive strand, positive direction: 0.

Core promoters

Proximal promoters

Negative direction: 3'-TGCCCA-5' at 4251 and complement.

Positive direction: 3'-TGGGCA-5' at 4180 and complement.

Distal promoters

Negative direction: 3'-TGGGCA-5' at 4191, 3'-TGGGCA-5' at 4040, 3'-TGCCCA-5' at 3883, 3'-TGCCCA-5' at 3854, 3'-TGGGCA-5' at 3301, 3'-TGGGCA-5' at 2773, 3'-TGGGCA-5' at 2438, 3'-TGCCCA-5' at 1458, 3'-TGGGCA-5' at 1359, 3'-TGGGCA-5' at 1114, 3'-TGGGCA-5' at 902, 3'-TGGGCA-5' at 462, and complements.

Positive direction: 3'-TGCCCA-5' at 3750, 3'-TGCCCA-5' at 3377, 3'-TGCCCA-5' at 3237, 3'-TGGGCA-5' at 2894, 3'-TGGGCA-5' at 1945, 3'-TGGGCA-5' at 27 and complements.

B1 box proximal promoters

B1 box negative direction: 3'-TGTCTCA-5' at 4373 and complement.

B1 box distal promoters

B1 box negative direction: 3'-TGTCTCA-5' at 3323, 3'-TGTCTCA-5' at 2445, 3'-TGTCTCA-5' at 2033, 3'-TGAGACA-5' at 2029, 3'-TGTCTCA-5' at 1089, 3'-TGAGACA-5' at 1085, 3'-TGTCTCA-5' at 1075, 3'-TGTCTCA-5' at 923, 3'-TGAGACA-5' at 919 and complements.

B1 box positive direction: 3'-TGTCTCA-5' at 2468, 3'-TGAGACA-5' at 2308, 3'-TGTCTCA-5' at 2174 and complements.

Acknowledgements

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

Initial content for this page in some instances came from Wikiversity.

See also

References

  1. 1.0 1.1 PA Johnson, D Bunick, NB Hecht (1991). "Protein Binding Regions in the Mouse and Rat Protamine-2 Genes" (PDF). Biology of Reproduction. 44 (1): 127–134. Retrieved 6 April 2019.
  2. Amber Paratore Sanchez and Kumar Sharma (July 2009). "Transcription factors in the pathogenesis of diabetic nephropathy". Expert Reviews in Molecular Medicine. 11: e13. doi:10.1017/S1462399409001057. Retrieved 1 October 2018.

External links