About: RNA polymerase IV

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RNA polymerase IV (RNAP IV) is an enzyme that synthesizes small interfering RNA (siRNA) in plants, which silence gene expression. RNAP IV belongs to a family of enzymes that catalyze the process of transcription known as RNA Polymerases, which synthesize RNA from DNA templates. Discovered via phylogenetic studies of land plants, genes of RNAP IV are thought to have resulted from multistep evolution processes that occurred in RNA Polymerase II phylogenies. Such an evolutionary pathway is supported by the fact that RNAP IV is composed of 12 protein subunits that are either similar or identical to RNA polymerase II, and is specific to plant genomes. Via its synthesis of siRNA, RNAP IV is involved in regulation of heterochromatin formation in a process known as RNA directed DNA Methylation (Rd

Attributes	Values
rdf:type	yago:Abstraction100002137 yago:Activator114723079 yago:Catalyst114723628 yago:Chemical114806838 yago:Compound114818238 yago:Enzyme114732946 yago:Macromolecule114944888 yago:Material114580897 yago:Matter100020827 yago:Molecule114682133 yago:OrganicCompound114727670 yago:Part113809207 yago:PhysicalEntity100001930 yago:Protein114728724 yago:Relation100031921 protein yago:Substance100019613 yago:Thing100002452 yago:Unit109465459 yago:WikicatEnzymes
rdfs:label	ARN polymérase IV (fr) RNA-polymerase IV (nl) RNA polymerase IV (en)
rdfs:comment	L'ARN polymérase IV est une nucléotidyltransférase présente dans les cellules des eucaryotes (chez les plantes uniquement). C'est l'une des ARN polymérases de ces organismes, avec l'ARN polymérase I, l'ARN polymérase II et l'ARN polymérase III. Elle est spécifique du génome des plantes et réalise la transcription de l'ADN pour produire de petits ARN interférents. Elle joue un rôle essentiel dans la protection du génome des plantes contre les virus et les éléments transposables par méthylation de l'ADN dirigée par l'ARN. (fr) RNA-polymerase IV is een RNA-polymerase, dat betrokken is bij de productie van small interfering RNA (siRNA) bij planten. Het is een afgeleide van RNA-polymerase II. Bij jonge somatische embryo's komt RNA-polymerase IV in de celkern voor, terwijl bij meer ontwikkeld ouder weefsel het in het cytoplasma voorkomt. RNA-polymerase IV is specifiek voor plantengenomen en is nodig voor de vorming van meer dan 90% van het 24-nucleotide lang heterochromatische siRNA. RNA-polymerase IV bestaat uit 12 subeenheden, waarvan veel gemeenschappelijk met die van RNA-polymerase II en RNA-polymerase V. (nl) RNA polymerase IV (RNAP IV) is an enzyme that synthesizes small interfering RNA (siRNA) in plants, which silence gene expression. RNAP IV belongs to a family of enzymes that catalyze the process of transcription known as RNA Polymerases, which synthesize RNA from DNA templates. Discovered via phylogenetic studies of land plants, genes of RNAP IV are thought to have resulted from multistep evolution processes that occurred in RNA Polymerase II phylogenies. Such an evolutionary pathway is supported by the fact that RNAP IV is composed of 12 protein subunits that are either similar or identical to RNA polymerase II, and is specific to plant genomes. Via its synthesis of siRNA, RNAP IV is involved in regulation of heterochromatin formation in a process known as RNA directed DNA Methylation (Rd (en)
foaf:depiction
dct:subject	Enzymes
Wikipage page ID	22448374 (xsd:integer)
Wikipage revision ID	1111503922 (xsd:integer)
Link from a Wikipage to another Wikipage	Methylation Arabidopsis Charales DNA methylation Enzymes Gene expression Enzyme RNA polymerase II Transposable element BLAST (biotechnology) Divergent evolution Chromatin Dicer Histone H3 Argonaute Heterochromatin C-terminus Phylogenetics Hua-Enhancer1 RNA-dependent RNA polymerase RNA-directed DNA Methylation RNA polymerase Small interfering RNA Evolution by gene duplication Polymerase RNA polymerase V RNA-directed DNA methylation Transposons Binding pocket
Link from a Wikipage to an external page	https://www.uniprot.org/uniprot/Q1L6W5 https://www.uniprot.org/uniprot/Q689D6
sameAs	RNA polymerase IV RNA polymerase IV RNA polymerase IV RNA polymerase IV RNA polymerase IV RNA polymerase IV RNA polymerase IV
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Short_description dbt:Polymerases
thumbnail	wiki-commons:Special:FilePath/RNA_Polymerase_II.png?width=300
has abstract	RNA polymerase IV (RNAP IV) is an enzyme that synthesizes small interfering RNA (siRNA) in plants, which silence gene expression. RNAP IV belongs to a family of enzymes that catalyze the process of transcription known as RNA Polymerases, which synthesize RNA from DNA templates. Discovered via phylogenetic studies of land plants, genes of RNAP IV are thought to have resulted from multistep evolution processes that occurred in RNA Polymerase II phylogenies. Such an evolutionary pathway is supported by the fact that RNAP IV is composed of 12 protein subunits that are either similar or identical to RNA polymerase II, and is specific to plant genomes. Via its synthesis of siRNA, RNAP IV is involved in regulation of heterochromatin formation in a process known as RNA directed DNA Methylation (RdDM). (en) L'ARN polymérase IV est une nucléotidyltransférase présente dans les cellules des eucaryotes (chez les plantes uniquement). C'est l'une des ARN polymérases de ces organismes, avec l'ARN polymérase I, l'ARN polymérase II et l'ARN polymérase III. Elle est spécifique du génome des plantes et réalise la transcription de l'ADN pour produire de petits ARN interférents. Elle joue un rôle essentiel dans la protection du génome des plantes contre les virus et les éléments transposables par méthylation de l'ADN dirigée par l'ARN. (fr) RNA-polymerase IV is een RNA-polymerase, dat betrokken is bij de productie van small interfering RNA (siRNA) bij planten. Het is een afgeleide van RNA-polymerase II. Bij jonge somatische embryo's komt RNA-polymerase IV in de celkern voor, terwijl bij meer ontwikkeld ouder weefsel het in het cytoplasma voorkomt. RNA-polymerase IV is specifiek voor plantengenomen en is nodig voor de vorming van meer dan 90% van het 24-nucleotide lang heterochromatische siRNA. RNA-polymerase IV bestaat uit 12 subeenheden, waarvan veel gemeenschappelijk met die van RNA-polymerase II en RNA-polymerase V. (nl)
gold:hypernym	Enzyme
prov:wasDerivedFrom	wikipedia-en:RNA_polymerase_IV?oldid=1111503922&ns=0
page length (characters) of wiki page	15377 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:RNA_polymerase_IV
is Link from a Wikipage to another Wikipage of	DCL3 Α-Amanitin RNA polymerase RNA polymerase V RNA-directed DNA methylation
is foaf:primaryTopic of	wikipedia-en:RNA_polymerase_IV

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