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Descriptor English: RNA Precursors
Descriptor Spanish: Precursores del ARN
Descriptor precursores del ARN
Entry term(s) ARN precursor
RNA precursor
precursores del ARN de transferencia
precursores del ARN mensajero
precursores del ARN nuclear pequeño
precursores del ARN ribosómico
precursores del RNA
precursores del RNA de transferencia
precursores del RNA mensajero
precursores del RNA nuclear pequeño
precursores del RNA ribosómico
transcripto de ARN primario
transcripto de RNA primario
transcripto primario de ARN
transcripto primario de RNA
Scope note: Transcritos de ARN, a partir del ADN, que están en alguna etapa inconclusa del procesamiento postranscripcional (PROCESAMIENTO DEL ARN POSTRANSCRIPCIONAL) necesario para funcionar. Los precursores del ARN pueden pasar por varias etapas de AYUSTE DEL ARN, durante las cuales se escinden las uniones fosfodiéster en los límites entre exón e intrón y se separan los intrones. Como consecuencia se forma una nueva unión entre los extremos de los exones. A continuación se puede utilizar los ARN maduros; por ejemplo, el ARNm maduro se utiliza como modelo para la producción de proteínas.
Descriptor Portuguese: Precursores de RNA
Descriptor French: Précurseurs des ARN
Entry term(s): Pre mRNA
Pre rRNA
Pre snRNA
Pre tRNA
Pre-mRNA
Pre-rRNA
Pre-snRNA
Pre-tRNA
Precursor RNA
Precursor, RNA
Precursor, mRNA
Precursor, rRNA
Precursor, snRNA
Precursor, tRNA
Precursors, RNA
Primary RNA Transcript
Primary Transcript, RNA
RNA Precursor
RNA Primary Transcript
RNA Transcript, Primary
RNA, Messenger, Precursors
RNA, Precursor
RNA, Ribosomal, Precursors
RNA, Small Nuclear, Precursors
RNA, Transfer, Precursors
Transcript, Primary RNA
Transcript, RNA Primary
mRNA Precursor
rRNA Precursor
snRNA Precursor
tRNA Precursor
Tree number(s): D13.400.730
D13.444.735.640
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D012322
Scope note: RNA transcripts of the DNA that are in some unfinished stage of post-transcriptional processing (RNA PROCESSING, POST-TRANSCRIPTIONAL) required for function. RNA precursors may undergo several steps of RNA SPLICING during which the phosphodiester bonds at exon-intron boundaries are cleaved and the introns are excised. Consequently a new bond is formed between the ends of the exons. Resulting mature RNAs can then be used; for example, mature mRNA (RNA, MESSENGER) is used as a template for protein production.
Annotation: coordinate with specific RNA
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AG agonists
AI antagonists & inhibitors
AN analysis
BI biosynthesis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
CS chemical synthesis
DE drug effects
EC economics
GE genetics
HI history
IM immunology
IP isolation & purification
ME metabolism
PD pharmacology
PH physiology
PK pharmacokinetics
PO poisoning
RE radiation effects
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UL ultrastructure
UR urine
Previous Indexing: Nucleic Acid Precursors (1975-1987)
Nucleic Acids (1966-1974)
Public MeSH Note: 88
History Note: 88
DeCS ID: 22988
Unique ID: D012322
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1988/01/01
Date of Entry: 1987/05/05
Revision Date: 2013/07/09
RNA Precursors - Preferred
Concept UI M0019151
Scope note RNA transcripts of the DNA that are in some unfinished stage of post-transcriptional processing (RNA PROCESSING, POST-TRANSCRIPTIONAL) required for function. RNA precursors may undergo several steps of RNA SPLICING during which the phosphodiester bonds at exon-intron boundaries are cleaved and the introns are excised. Consequently a new bond is formed between the ends of the exons. Resulting mature RNAs can then be used; for example, mature mRNA (RNA, MESSENGER) is used as a template for protein production.
Preferred term RNA Precursors
Entry term(s) Precursors, RNA
RNA Precursor - Narrower
Concept UI M0019155
Preferred term RNA Precursor
Entry term(s) Precursor RNA
Precursor, RNA
RNA, Precursor
RNA, Transfer, Precursors - Narrower
Concept UI M0019154
Preferred term RNA, Transfer, Precursors
Entry term(s) Pre tRNA
Pre-tRNA
Precursor, tRNA
tRNA Precursor
RNA, Ribosomal, Precursors - Narrower
Concept UI M0019152
Preferred term RNA, Ribosomal, Precursors
Entry term(s) Pre rRNA
Pre-rRNA
Precursor, rRNA
rRNA Precursor
RNA, Small Nuclear, Precursors - Narrower
Concept UI M0019153
Preferred term RNA, Small Nuclear, Precursors
Entry term(s) Pre snRNA
Pre-snRNA
Precursor, snRNA
snRNA Precursor
Primary RNA Transcript - Narrower
Concept UI M0411952
Scope note The product of RNA polymerase prior to any post-transcriptional modifications (RNA PROCESSING, POST-TRANSCRIPTIONAL), i.e. RNA copies from DNA that exactly represent the genome sequence.
Preferred term Primary RNA Transcript
Entry term(s) Primary Transcript, RNA
RNA Primary Transcript
RNA Transcript, Primary
Transcript, Primary RNA
Transcript, RNA Primary
RNA, Messenger, Precursors - Narrower
Concept UI M0019150
Preferred term RNA, Messenger, Precursors
Entry term(s) Pre mRNA
Pre-mRNA
Precursor, mRNA
mRNA Precursor



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