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Descriptor English: Trans-Splicing
Descriptor Spanish: Trans-Empalme
Descriptor empalme trans
Entry term(s) ayuste en trans
empalme de ARN trans
empalme trans de ARN
trans-empalme
trans-empalme de ARN
Scope note: Unión del ARN de dos genes diferentes. Un tipo de trans-empalme es el tipo "líder de empalme" (que se encuentra principalmente en protozoos como los tripanosomas y en invertebrados inferiores como los nematodos) que da lugar a la adición de una secuencia líder de empalme, cubierta, no codificante, en el extremo 5' de los ARNm. Otro tipo de trans-empalme es el tipo de "intrones discontinuos del grupo II" (que se hallan en los cloroplastos de plantas y algas y en las mitocondrias de plantas), que dan lugar a la unión de dos secuencias codificadoras transcritas independientemente. Ambos tipos son similares desde el punto de vista mecánico a los cis-empalmes convencionales del ARNpre-m nuclear. El trans-empalme también puede darse en células de mamíferos.
Descriptor Portuguese: Trans-Splicing
Descriptor French: Épissage en trans
Entry term(s): RNA Splicing, Trans
RNA Trans Splicing
RNA Trans-Splicing
Splicing, Trans
Trans RNA Splicing
Trans Splicing
Trans-Splicings, RNA
Tree number(s): G02.111.760.700.750
G03.839.700.750
G05.308.700.700.750
RDF Unique Identifier: https://id.nlm.nih.gov/mesh/D020040
Scope note: The joining of RNA from two different genes. One type of trans-splicing is the "spliced leader" type (primarily found in protozoans such as trypanosomes and in lower invertebrates such as nematodes) which results in the addition of a capped, noncoding, spliced leader sequence to the 5' end of mRNAs. Another type of trans-splicing is the "discontinuous group II introns" type (found in plant/algal chloroplasts and plant mitochondria) which results in the joining of two independently transcribed coding sequences. Both are mechanistically similar to conventional nuclear pre-mRNA cis-splicing. Mammalian cells are also capable of trans-splicing.
Annotation: note category: a physiol process taking place within the cell nucleus; do not confuse with DNA, RECOMBINANT; CLONING, MOLECULAR; or GENETIC ENGINEERING
Allowable Qualifiers: DE drug effects
ES ethics
GE genetics
IM immunology
PH physiology
RE radiation effects
Previous Indexing: RNA Splicing (1982-1998)
Public MeSH Note: 99
History Note: 99
Related: RNA, Spliced Leader MeSH
DeCS ID: 33898
Unique ID: D020040
Documents indexed in the Virtual Health Library (VHL): Click here to access the VHL documents
Date Established: 1999/01/01
Date of Entry: 1998/06/11
Revision Date: 2016/07/01
Trans-Splicing - Preferred
Concept UI M0029753
Scope note The joining of RNA from two different genes. One type of trans-splicing is the "spliced leader" type (primarily found in protozoans such as trypanosomes and in lower invertebrates such as nematodes) which results in the addition of a capped, noncoding, spliced leader sequence to the 5' end of mRNAs. Another type of trans-splicing is the "discontinuous group II introns" type (found in plant/algal chloroplasts and plant mitochondria) which results in the joining of two independently transcribed coding sequences. Both are mechanistically similar to conventional nuclear pre-mRNA cis-splicing. Mammalian cells are also capable of trans-splicing.
Preferred term Trans-Splicing
Entry term(s) RNA Splicing, Trans
RNA Trans Splicing
RNA Trans-Splicing
Splicing, Trans
Trans RNA Splicing
Trans Splicing
Trans-Splicings, RNA



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