| NST | Nonsense Syllable Test |
|---|---|
| NMD | Nonsense-mediated mRNA decay |
| nonsense | As used in genetics, relating to a mutation that causes a sequence such that the growing peptide chain terminates, often after several incorrect amino acid residues are incorporated. (05 Mar 2000) |
|---|---|
| nonsense codon | <molecular biology> The three codons, UAA (known as ochre), UAG (amber) and UGA (opal), that do not code for an amino acid but act as signals for the termination of protein synthesis. Any mutation that causes a base change which produces a nonsense codon results in premature termination of protein synthesis and probably a nonfunctional or nonsense protein. (13 Nov 1997) |
| nonsense mutation | <molecular biology> A mutation that causes a polypeptide chain to be ended prematurely. (13 Nov 1997) |
| nonsense strand | <molecular biology> DNA that does not code for part of a polypeptide chain or RNA.This includes introns and pseudo genes. In eukaryotes the majority of the DNA is noncoding. Noncoding strand refers to the so called nonsense strand, as opposed to the sense strand which is actually translated into mRNA. (18 Nov 1997) |
| nonsense suppression | Mutant tRNAs that read a chain termination codon as the signal for incorporation of a specific amino acid residue. (05 Mar 2000) |
| nonsense syndrome | <syndrome> A psychotic-like condition, without the symptoms and signs of a traditional psychosis, occurring typically in prisoners who feign insanity; e.g., such a person, when asked to multiply 6 by 4, will give 23 as the answer, or he will call a key a lock. See: malingering, factitious disorder. Synonym: nonsense syndrome, syndrome of approximate relevant answers, syndrome of deviously relevant answers. (05 Mar 2000) |
| nonsense triplet | A trinucleotide (codon) in which a base change to a termination codon results in premature termination of the growing polypeptide chain and, consequently, incomplete protein molecules, a termination codon. (05 Mar 2000) |
| codon, nonsense | A codon that is not assigned to an amino acid or to any stop signal. It was originally thought that nonsense codons were synonymous with terminator codons (codon, terminator) in that they signaled termination of a protein chain. Recent studies have found this not to be true. (12 Dec 1998) |
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| nonsense mutation |
A mutation which converts an amino-acid-specifying codon into a stop codon, eg, a change from UAU (tyr) to UAG (amber) would lead to the premature termination of a polypeptide chain at the place where a tyrosine was inserted in the wild-type. See stop codon; suppressor.
Ãâó: www.fao.org/docrep/003/X3910E/X3910E17.htm
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|---|---|
| nonsense mutation |
A mutation that causes the formation of a nonsense codon and the truncation of the protein product.
Ãâó: www.genpromag.com/Glossary~LETTER~N.html
|
| nonsense mutation |
A gene mutation in which a base-pair change in the DNA causes a change in an mRNA codon from an amino acid-coding codon to a chain-terminating (nonsense) codon. As a result, polypeptide chain synthesis is terminated prematurely and is therefore either nonfunctional or, at best, partially functional.
Ãâó: www.modernhumanorigins.com/n.html
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| nonsense mutation |
A mutation that changes a normal codon into one which does not code for an amino acid.
Ãâó: www.pestmanagement.co.uk/lib/glossary/glossary_n.s...
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| nonsense mutation |
a genetic mutation where a single nucleotide substitution creates a stop codon.
Ãâó: www.uvm.edu/~cgep/Education/Glossary.html
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| nonsense | ornamental objects of no great value |
|---|---|
| nonsense | a message that seems to convey no meaning |
| nonsense | having no intelligible meaning |
| nonsense | nonsensical writing (usually verse) |
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