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RNA, Small Interfering
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D034741 |
[siRNAs involved with GENE SILENCING of MOBILE GENETIC ELEMENTS in DROSOPHILA.
, siRNAs, found in TETRAHYMENA, that are homologous to internal eliminated sequences (IESs) deleted during programmed genome rearrangement.
, Small double-stranded, non-protein coding RNAs (21-31 nucleotides) involved in GENE SILENCING functions, especially RNA INTERFERENCE (RNAi). Endogenously, siRNAs are generated from dsRNAs (RNA, DOUBLE-STRANDED) by the same ribonuclease, Dicer, that generates miRNAs (MICRORNAS). The perfect match of the siRNAs' antisense strand to their target RNAs mediates RNAi by siRNA-guided RNA cleavage. siRNAs fall into different classes including trans-acting siRNA (tasiRNA), repeat-associated RNA (rasiRNA), small-scan RNA (scnRNA), and Piwi protein-interacting RNA (piRNA) and have different specific gene silencing functions.
, siRNAs, about 26-31 nucleotides in length. They are involved in mammalian GAMETOGENESIS.
, siRNA, found in plants, that are involved in silencing different gene loci than those from which they were derived.
] |
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RNA, Small Nuclear
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D012342 |
[Short chains of RNA (100-300 nucleotides long) that are abundant in the nucleus and usually complexed with proteins in snRNPs (RIBONUCLEOPROTEINS, SMALL NUCLEAR). Many function in the processing of messenger RNA precursors. Others, the snoRNAs (RNA, SMALL NUCLEOLAR), are involved with the processing of ribosomal RNA precursors.
] |
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RNA, Small Nucleolar
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D020537 |
[Small nuclear RNAs that are involved in the processing of pre-ribosomal RNA in the nucleolus. Box C/D containing snoRNAs (U14, U15, U16, U20, U21 and U24-U63) direct site-specific methylation of various ribose moieties. Box H/ACA containing snoRNAs (E2, E3, U19, U23, and U64-U72) direct the conversion of specific uridines to pseudouridine. Site-specific cleavages resulting in the mature ribosomal RNAs are directed by snoRNAs U3, U8, U14, U22 and the snoRNA components of RNase MRP and RNase P.
] |
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RNA, Small Untranslated
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D058727 |
[Short RNA, about 200 base pairs in length or shorter, that does not code for protein.
] |
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RNA, Spliced Leader
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D020038 |
[The small RNAs which provide spliced leader sequences, SL1, SL2, SL3, SL4 and SL5 (short sequences which are joined to the 5' ends of pre-mRNAs by TRANS-SPLICING). They are found primarily in primitive eukaryotes (protozoans and nematodes).
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RNA, Transfer
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D012343 |
[The small RNA molecules, 73-80 nucleotides long, that function during translation (TRANSLATION, GENETIC) to align AMINO ACIDS at the RIBOSOMES in a sequence determined by the mRNA (RNA, MESSENGER). There are about 30 different transfer RNAs. Each recognizes a specific CODON set on the mRNA through its own ANTICODON and as aminoacyl tRNAs (RNA, TRANSFER, AMINO ACYL), each carries a specific amino acid to the ribosome to add to the elongating peptide chains.
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RNA, Transfer, Ala
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D012344 |
[A transfer RNA which is specific for carrying alanine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Amino Acid-Specific
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D012345 |
[A group of transfer RNAs which are specific for carrying each one of the 20 amino acids to the ribosome in preparation for protein synthesis.
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RNA, Transfer, Amino Acyl
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D012346 |
[Intermediates in protein biosynthesis. The compounds are formed from amino acids, ATP and transfer RNA, a reaction catalyzed by aminoacyl tRNA synthetase. They are key compounds in the genetic translation process.
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RNA, Transfer, Arg
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D012347 |
[A transfer RNA which is specific for carrying arginine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Asn
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D012348 |
[A transfer RNA which is specific for carrying asparagine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Asp
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D012349 |
[A transfer RNA which is specific for carrying aspartic acid to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Cys
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D012350 |
[A transfer RNA which is specific for carrying cysteine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Gln
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D012351 |
[A transfer RNA which is specific for carrying glutamine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Glu
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D012352 |
[A transfer RNA which is specific for carrying glutamic acid to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Gly
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D012353 |
[A transfer RNA which is specific for carrying glycine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, His
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D012354 |
[A transfer RNA which is specific for carrying histidine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Ile
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D012355 |
[A transfer RNA which is specific for carrying isoleucine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Leu
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D012356 |
[A transfer RNA which is specific for carrying leucine to sites on the ribosomes in preparation for protein synthesis.
] |
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RNA, Transfer, Lys
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D012357 |
[A transfer RNA which is specific for carrying lysine to sites on the ribosomes in preparation for protein synthesis.
] |
