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Schematic showing how antisense DNA strands can interfere with protein translation. Hence, a base triplet 3′-TAC-5′ in the DNA antisense strand (complementary to the 5′-ATG-3′ of the DNA sense strand) is used as the template which results in a 5′-AUG-3′ base triplet in the mRNA.
In genetics, a sense strand, or coding strand, is the segment within double-stranded DNA that carries the translatable code in the 5′ to 3′ direction, and which is complementary to the antisense strand of DNA, or template strand, which does not carry the translatable code in the 5′ to 3′ direction. [1]
By convention, the coding strand is the strand used when displaying a DNA sequence. It is presented in the 5' to 3' direction. Wherever a gene exists on a DNA molecule, one strand is the coding strand (or sense strand), and the other is the noncoding strand (also called the antisense strand, [3] anticoding strand, template strand or transcribed ...
A few DNA sequences in prokaryotes and eukaryotes, and more in plasmids and viruses, blur the distinction between sense and antisense strands by having overlapping genes. [40] In these cases, some DNA sequences do double duty, encoding one protein when read along one strand, and a second protein when read in the opposite direction along the ...
Two strands of complementary sequence are referred to as sense and anti-sense. The sense strand is, generally, the transcribed sequence of DNA or the RNA that was generated in transcription, while the anti-sense strand is the strand that is complementary to the sense sequence.
AsRNA is transcribed from the lagging strand of a gene and is complementary to a specific mRNA or sense transcript. Antisense RNA (asRNA), also referred to as antisense transcript, [1] natural antisense transcript (NAT) [2] [3] [4] or antisense oligonucleotide, [5] is a single stranded RNA that is complementary to a protein coding messenger RNA (mRNA) with which it hybridizes, and thereby ...
Antisense oligonucleotides can be used to target a specific, complementary (coding or non-coding) RNA. If binding takes place this hybrid can be degraded by the enzyme RNase H. [12] RNase H is an enzyme that hydrolyzes RNA, and when used in an antisense oligonucleotide application results in 80-95% down-regulation of mRNA expression. [6]
UBE3A-ATS/Ube3a-ATS (human/mouse), otherwise known as ubiquitin ligase E3A-ATS, is the name for the antisense DNA strand that is transcribed as part of a larger transcript called LNCAT (large non-coding antisense transcript) at the Ube3a locus. The Ube3a locus is imprinted and in the central nervous system expressed only from the maternal allele