| SSCA | spontaneous suppressor cell activity |
|---|---|
| SSF | soluble suppressor factor; supplemental sensory feedback |
| SUS | Saybolt Universal Seconds; solitary ulcer syndrome; stained urinary sediment; suppressor sensitive |
| TS | Takayasu syndrome; Tay-Sachs; temperature sensitivity; temperature, skin; temporal stem; tensile str... |
| Ts | T-cell suppressor |
| isoacceptor tRNA | <molecular biology> Different tRNA species that bind to alternate codons for the same amino acid residue; can be one tRNA that recognises the various codons that signify those for the particular amino acid residue. (05 Mar 2000) |
|---|---|
| isoleucine-trna ligase | <enzyme> An enzyme that activates isoleucine with its specific transfer RNA. Chemical name: L-Isoleucine:tRNA(Ile) ligase (AMP-forming) Registry number: EC 6.1.1.5 (12 Dec 1998) |
| threonine-trna ligase | <enzyme> An enzyme that activates threonine with its specific transfer RNA. Chemical name: L-Threonine:tRNA(Thr) ligase (AMP-forming) Registry number: EC 6.1.1.3 (12 Dec 1998) |
| threonyl tRNA synthetase kinase | <enzyme> From postribosomal supernatants of bom:nmri mouse liver; comigrates with threonyl trna synthetase during several purification steps Registry number: EC 2.7.1.- Synonym: thr trna synthetase kinase (26 Jun 1999) |
| tRNA | rNA |
| tRNA(1-methylguanosine)methyltransferase | <enzyme> Mw 21 kD; converts guanosine in position 37 to 1-methylguanosine and at least one of the trna(arg) isoacceptors Registry number: EC 2.1.1.- Synonym: trmd protein (26 Jun 1999) |
| tRNA 2-selenouridine synthase | <enzyme> Catalyses the conversion of a 5-methylaminomethyl-2-thiouridine in trna to 5-methylaminomethyl-2-selenouridine Registry number: EC 2.8.1.- (26 Jun 1999) |
| tRNA 3'-processing endonuclease | <enzyme> Involved in processing precursor trna from eukaryotic nuclei and organelles between nucleotides 74 and 75 to give 3'c-oh Registry number: EC 3.1.27.- (26 Jun 1999) |
| tRNA (5-methylaminomethyl-2-thiouridylate)-methyltransferase | <enzyme> From E coli; has two enzymatic activities, one demodifies 5-carboxymethylaminomethyl-2-thiouridine to the 5-amino cpd, the other catalyses the transfer of a methyl group from s-adenosylmethionine to 5-aminomethyl-2-thiouridine thus forming 5-methylaminomethyl-2-thiouridine Registry number: EC 2.1.1.61 Synonym: trna(5-methylaminomethyl-2-thiouridine)-methyltransferase, trna(mnm5s2u)-methyltransferase (26 Jun 1999) |
| tRNA A64-2'-O-ribosylphosphate transferase | <enzyme> Rit - ribosylation of the initiator trna; a trna backbone-modifying enzyme that mediates initiator and elongator trna discrimination; forms 2'-o-ribosylphosphate on adenosine 64 of saccharomyces cerevisiae trna; genbank x80795 Registry number: EC 2.4.2.- Synonym: rit1 protein, rit1 gene product (26 Jun 1999) |
| tRNA excision ligase | <enzyme> Processes pre-trna-tyr into mature trna-tyr Registry number: EC 6.5.1.- (26 Jun 1999) |
| tRNA(guanosine-2'-)-methyltransferase | <enzyme> Transfers the methyl group from s-adenosyl-l-methionine to the 2'-hydroxyl group of a guanosine residue present in a gg sequence in trna(try) Registry number: EC 2.1.1.34 Synonym: trna(gm)methylase, trna(wobble guanosine 2'-o-)methyltransferase (26 Jun 1999) |
| tRNA guanylyltransferase | <enzyme> From saccharomyces cerevisiae or drosophila melanogaster; during the biosynthesis of eukaryotic histidine trna, the enzyme adds a guanylate moiety to the 5'-end of histidine trna in a posttranscriptional modification Registry number: EC 2.7.7.- Synonym: histidine trna guanylyltransferase (26 Jun 1999) |
| tRNA-hypoxanthine ribosyltransferase | <enzyme> Incorporates hypoxanthine into mature trna molecules Registry number: EC 2.4.2.- Synonym: trna-hpx ribosyltransferase (26 Jun 1999) |
| trna methyltransferases | <enzyme> Enzymes that catalyze the s-adenosyl-l-methionine-dependent methylation of ribonucleotide bases within a transfer RNA molecule. Registry number: EC 2.1.1.- (12 Dec 1998) |