D box gene transcriptions: Difference between revisions
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* [[cAmp response element gene transcriptions]] | * [[cAmp response element gene transcriptions]] | ||
* [[C box gene transcriptions]] | * [[C box gene transcriptions]] |
Revision as of 04:30, 25 December 2019
Associate Editor(s)-in-Chief: Henry A. Hoff
For "box C/D snoRNAs, boxes C and D and an adjoining stem form a vital structure, known as the box C/D motif."[1]
In snoRNA U73 on the right, from the right side, the D box is AGUCY. In 5' to 3' direction, the D box is YCUGA.
Degenerate nucleotides
For transcription, U (in RNA) is T, Y=(C or T) and R=(A or G).
Consensus sequences
Shown in the image on the right is the D box (3'-AGUCUG-5'). Substituting T for U yields D box = 3'-AGTCTG-5' in the transcription direction on the template strand.
"Members of the box C/D snoRNA family, which are the subject of the present report, possess characteristic sequence elements known as box C (UGAUGA) and box D (GUCUGA)."[1]
Samplings
Regarding hypothesis 1
The D boxes are not involved in the transcription of A1BG.
For the Basic programs (starting with SuccessablesDbox.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:
- negative strand in the negative direction (from ZSCAN22 to A1BG) is SuccessablesDbox--.bas, looking for 3'-AGTCTG-5', 1, 3'-AGTCTG-5', 2947,
- negative strand in the positive direction (from ZNF497 to A1BG) is SuccessablesDbox-+.bas, looking for 3'-AGTCTG-5', 1, 3'-AGTCTG-5', 3923,
- positive strand in the negative direction is SuccessablesDbox+-.bas, looking for 3'-AGTCTG-5', 1, 3'-AGTCTG-5', 1355,
- positive strand in the positive direction is SuccessablesDbox++.bas, looking for 3'-AGTCTG-5', 0,
- complement, negative strand, negative direction is SuccessablesDboxc--.bas, looking for 3'-TCAGAC-5', 1, 3'-TCAGAC-5', 1355,
- complement, negative strand, positive direction is SuccessablesDboxc-+.bas, looking for 3'-TCAGAC-5', 0,
- complement, positive strand, negative direction is SuccessablesDboxc+-.bas, looking for 3'-TCAGAC-5', 1, 3'-TCAGAC-5', 2947,
- complement, positive strand, positive direction is SuccessablesDboxc++.bas, looking for 3'-TCAGAC-5', 1, 3'-TCAGAC-5', 3923,
- inverse complement, negative strand, negative direction is SuccessablesDboxci--.bas, looking for 3'-CAGACT-5', 0,
- inverse complement, negative strand, positive direction is SuccessablesDboxci-+.bas, looking for 3'-CAGACT-5', 2, 3'-CAGACT-5', 1744, 3'-CAGACT-5', 2416,
- inverse complement, positive strand, negative direction is SuccessablesDboxci+-.bas, looking for 3'-CAGACT-5', 2, 3'-CAGACT-5', 15, 3'-CAGACT-5', 1616,
- inverse complement, positive strand, positive direction is SuccessablesDboxci++.bas, looking for 3'-CAGACT-5', 3, 3'-CAGACT-5', 2943, 3'-CAGACT-5', 3006, 3'-CAGACT-5', 3924,
- inverse, negative strand, negative direction, is SuccessablesDboxi--.bas, looking for 3'-GTCTGA-5', 2, 3'-GTCTGA-5', 15, 3'-GTCTGA-5', 1616,
- inverse, negative strand, positive direction, is SuccessablesDboxi-+.bas, looking for 3'-GTCTGA-5', 3, 3'-GTCTGA-5', 2943, 3'-GTCTGA-5', 3006, 3'-GTCTGA-5', 3924,
- inverse, positive strand, negative direction, is SuccessablesDboxi+-.bas, looking for 3'-GTCTGA-5', 0,
- inverse, positive strand, positive direction, is SuccessablesDboxi++.bas, looking for 3'-GTCTGA-5', 2, 3'-GTCTGA-5', 1744, 3'-GTCTGA-5', 2416.
Distal promoter D boxes
Using an estimate of 2 knts, a distal promoter to A1BG would be expected after nucleotide number 2460 in the negative direction.
There is one D box in the distal promoter: 3'-AGTCTG-5' at 2947 on the negative strand in the negative direction and its complement on the positive strand.
Using an estimate of 2 knts, a distal promoter to A1BG would be expected after nucleotide number 2300 in the positive direction.
There is one D box in the distal promoter: 3'-AGTCTG-5' at 3923 on the negative strand in the positive direction and its complement on the positive strand.
See also
References
- ↑ 1.0 1.1 Dmitry A.Samarsky, Maurille J.Fournier, Robert H.Singer and Edouard Bertrand (1 July 1998). "The snoRNA box C/D motif directs nucleolar targeting and also couples snoRNA synthesis and localization" (PDF). The European Molecular Biology Organization (EMBO) Journal. 17 (13): 3747–3757. doi:10.1093/emboj/17.13.3747. PMID 9649444. Retrieved 2017-02-04.