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RNA ribozomální

The most abundant form of RNA. Together with proteins, it forms the ribosomes, playing a structural role and also a role in ribosomal binding of mRNA and tRNAs. Individual chains are conventionally designated by their sedimentation coefficients. In eukaryotes, four large chains exist, synthesized in the nucleolus and constituting about 50% of the ribosome. (Dorland, 28th ed)
MSH

most abundant form of RNA; together with proteins, it forms the ribosomes, playing a structural role and also a role in ribosomal binding of mRNA and tRNAs; individual chains are conventionally designated by their sedimentation coefficients; in eukaryotes, four large chains exist, synthesized in the nucleolus and constituting about 50 percent of the ribosome.
CSP

Class of RNA molecules that do not contain protein-coding sequence information. These RNAs constitute the majority of the cellular RNA (~ 80%); they associate with multiple proteins into a macromolecular complex termed ribosomes, in which mRNA-directed protein synthesis occurs. The three eukaryotic rRNAs are named 28S, 18S, and 5S rRNA.
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RNA ribozomální 16S

Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
MSH

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RNA ribozomální 18S

Constituent of the 40S subunit of eukaryotic ribosomes. 18S rRNA is involved in the initiation of polypeptide synthesis in eukaryotes.
MSH

The second largest of the three RNA components of the mammalian ribosome.
NCI

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RNA ribozomální 23S

Constituent of 50S subunit of prokaryotic ribosomes containing about 3200 nucleotides. 23S rRNA is involved in the initiation of polypeptide synthesis.
MSH

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RNA ribozomální 28S

Constituent of the 60S subunit of eukaryotic ribosomes. 28S rRNA is involved in the initiation of polypeptide synthesis in eukaryotes.
MSH

The largest of the three RNA components of the mammalian ribosome.
NCI

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RNA ribozomální 5.8S

Constituent of the 60S subunit of eukaryotic ribosomes. 5.8S rRNA is involved in the initiation of polypeptide synthesis in eukaryotes.
MSH

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RNA ribozomální 5S

Constituent of the 50S subunit of prokaryotic ribosomes containing about 120 nucleotides and 34 proteins. It is also a constituent of the 60S subunit of eukaryotic ribosomes. 5S rRNA is involved in initiation of polypeptide synthesis.
MSH

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RNA malá jaderná

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.
MSH

short chains of RNA (100-300 nucleotides long) that are abundant in the nucleus and usually complexed with proteins in small nuclear ribonucleoproteins; many function in the processing of messenger RNA precursors; others, the small nucleolar RNAs, are involved with the processing of ribosomal RNA precursors.
CSP

Small nuclear RNA. A class of abundant small nuclear RNAs involved in RNA processing (splicing, 3` end maturation). These snRNAs associate with specific proteins to form the small nuclear ribonucleoprotein particles (snRNP) directly involved in RNA processing. Seven known snRNAs have been termed U1 through U7 snRNA.
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RNA transferová

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.
MSH

small ribonucleic acid molecules 73 to 93 nucleotides long, occurring in cells in about 30 varieties and functioning in translation; each variety carries a specific amino acid to a site specified by an RNA codon, binding to amino acid, ribosome, and to the codon via an anticodon region; all have numerous modified bases and extensive secondary structure.
CSP

A class of RNA having structures with triplet nucleotide sequences that are complementary to the triplet nucleotide coding sequences of mRNA. The role of tRNAs in protein synthesis is to bond with amino acids and transfer them to the ribosomes, where proteins are assembled according to the genetic code carried by mRNA. (BioTech Life Science Dictionary)
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RNA transferová Ala

A transfer RNA which is specific for carrying alanine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová specifická pro aminokyseliny

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.
MSH

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RNA aminoacyl-transferová

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.
MSH

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.
CSP

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RNA transferová Arg

A transfer RNA which is specific for carrying arginine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Asn

A transfer RNA which is specific for carrying asparagine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Asp

A transfer RNA which is specific for carrying aspartic acid to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Cys

A transfer RNA which is specific for carrying cysteine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Gln

A transfer RNA which is specific for carrying glutamine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Glu

A transfer RNA which is specific for carrying glutamic acid to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Gly

A transfer RNA which is specific for carrying glycine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová His

A transfer RNA which is specific for carrying histidine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Ile

A transfer RNA which is specific for carrying isoleucine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Leu

A transfer RNA which is specific for carrying leucine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Lys

A transfer RNA which is specific for carrying lysine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Met

A transfer RNA which is specific for carrying methionine to sites on the ribosomes. During initiation of protein synthesis, tRNA(f)Met in prokaryotic cells and tRNA(i)Met in eukaryotic cells binds to the start codon (CODON, INITIATOR).
MSH

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tRNA-methyltransferasy

Enzymes that catalyze the S-adenosyl-L-methionine-dependent methylation of ribonucleotide bases within a transfer RNA molecule. EC 2.1.1.
MSH

An enzyme that catalyzes the methylation of transfer RNAs.
NCI

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RNA transferová Phe

A transfer RNA which is specific for carrying phenylalanine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Pro

A transfer RNA which is specific for carrying proline to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Ser

A transfer RNA which is specific for carrying serine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Thr

A transfer RNA which is specific for carrying threonine to sites on the ribosomes in preparation for protein synthesis.
MSH

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RNA transferová Trp

A transfer RNA which is specific for carrying tryptophan to sites on the ribosomes in preparation for protein synthesis.
MSH

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