Cell-cycle box gene transcriptions

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

"The 5' non-coding part contains the sequence elements characteristic for eukaryotic promoters such as TATA and CAAT boxes as well as an inverted motif typical for cell-cycle regulated genes named "cell-cycle box" (CCB). The consensus sequence of CCB is CACGAAAA (Nasmyth, 1985), however, more relaxed variants such as CACGAAA, ACGAAA and C-CGAAA were described in budding yeast CLN1 and CLN2 (Ogas et al, 1991)."[1]

Human genes

Gene expressions

Interactions

Consensus sequences

Binding site for

Inverse copies

"In our soybean genomic clone CCB is represented as an inverted motif TTTTGGTG at the -66 position. (Breeden and Nasmyth (1987) suggested that the "cell cycle box" is functional in either orientation, acting as an enhancer."[1]

Enhancer activity

Promoter occurrences

Hypotheses

  1. A1BG has no regulatory elements in either promoter.
  2. A1BG is not transcribed by a regulatory element.
  3. No regulatory element participates in the transcription of A1BG.

CCB Samplings

Copying a responsive elements consensus sequence CACGAAAA 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 CACGAAAA (starting with SuccessablesCCB.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 CACGAAAA, 0.
  2. positive strand, negative direction, looking for CACGAAAA, 0.
  3. positive strand, positive direction, looking for CACGAAAA, 0.
  4. negative strand, positive direction, looking for CACGAAAA, 0.
  5. complement, negative strand, negative direction, looking for GTGCTTTT, 0.
  6. complement, positive strand, negative direction, looking for GTGCTTTT, 0.
  7. complement, positive strand, positive direction, looking for GTGCTTTT, 0.
  8. complement, negative strand, positive direction, looking for GTGCTTTT, 0.
  9. inverse complement, negative strand, negative direction, looking for TTTTCGTG, 0.
  10. inverse complement, positive strand, negative direction, looking for TTTTCGTG, 0.
  11. inverse complement, positive strand, positive direction, looking for TTTTCGTG, 0.
  12. inverse complement, negative strand, positive direction, looking for TTTTCGTG, 0.
  13. inverse negative strand, negative direction, looking for AAAAGCAC, 0.
  14. inverse positive strand, negative direction, looking for AAAAGCAC, 0.
  15. inverse positive strand, positive direction, looking for AAAAGCAC, 0.
  16. inverse negative strand, positive direction, looking for AAAAGCAC, 0.

CCB variant samplings

Copying a responsive elements consensus sequence CACGAAA, ACGAAA and C-CGAAA 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 NNCGAAAN (starting with SuccessablesCCBV.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 NNCGAAAN, 0.
  2. positive strand, negative direction, looking for NNCGAAAN, 2, ACGAAA at 494, ACGAAA at 312.
  3. positive strand, positive direction, looking for NNCGAAAN, 0.
  4. negative strand, positive direction, looking for NNCGAAAN, 0.
  5. complement, negative strand, negative direction, looking for NNGCTTTN, 2, TGCTTT at 494, TGCTTT at 312.
  6. complement, positive strand, negative direction, looking for NNGCTTTN, 0.
  7. complement, positive strand, positive direction, looking for NNGCTTTN, 0.
  8. complement, negative strand, positive direction, looking for NNGCTTTN, 0.
  9. inverse complement, negative strand, negative direction, looking for NTTTCGNN, 3, TTTCGT at 2479, TTTCGT at 2473, TTTCGT at 186.
  10. inverse complement, positive strand, negative direction, looking for NTTTCGNN, 0.
  11. inverse complement, positive strand, positive direction, looking for NTTTCGNN, 2, TTTCGTG at 3600, TTTCGT at 2006.
  12. inverse complement, negative strand, positive direction, looking for NTTTCGNN, 1, TTTCGGG at 1752.
  13. inverse negative strand, negative direction, looking for NAAAGCNN, 0.
  14. inverse positive strand, negative direction, looking for NAAAGCNN, 3, AAAGCA at 2479, AAAGCA at 2473, AAAGCA at 186.
  15. inverse positive strand, positive direction, looking for NAAAGCNN, 1, AAAGCCC at 1752.
  16. inverse negative strand, positive direction, looking for NAAAGCNN, 2, AAAGCAC at 3600, AAAGCA at 2006.

CCB distal promoters

Negative strand, negative direction: TTTCGT at 2479, TTTCGT at 2473, TTTCGT at 186.

Positive strand, negative direction: ACGAAA at 494, ACGAAA at 312.

Negative strand, positive direction: TTTCGGG at 1752.

Positive strand, positive direction: TTTCGTG at 3600, TTTCGT at 2006.

Acknowledgements

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

See also

References

  1. 1.0 1.1 Joanna Deckert, Natasha Taranenko, and Peter M. Gresshoff (1994). Peter M. Gresshoff, ed. Cell Cycle Genes and Their Plant Homologues, In: Plant Genome Analysis: Current Topics in Plant Molecular Biology. 2000 Corporate Blvd., N.W., Boca Raton, Florida 33431: CRC Press, Inc. pp. 169–194. ISBN 0-8493-8264-5. Retrieved 19 April 2021.

External links