Human Interaction Network Ontology

Last uploaded: June 27, 2014
Preferred Name

L13a-mediated translational silencing of Ceruloplasmin expression
Synonyms
Definitions

While circularization of mRNA during translation initiation is thought to contribute to an increase in the efficiency of translation, it also appears to provide a mechanism for translational silencing. This might be achieved by bringing inhibitory 3' UTR-binding proteins into a position in which they interfere either with the function of the translation initiation complex or with the assembly of the ribosome (Mazumder et al 2001). Translational silencing of Ceruloplasmin (Cp) occurs 16 hrs after its induction by INF-gamma (Mazumder et al., 1997). Although the mechanism by which silencing occurs has not yet been determined, this process is mediated by the L13a subunit of the 60s ribosome and thought to require circularization of the Cp mRNA (Sampath et al., 2003; Mazumder et al., 2001; Mazumder et al., 2003). Between 14 and 16 hrs after INF gamma induction, the L13a subunit of the 60s ribosome is phosphorylated and released from the 60s subunit. Phosphorylated L13a then associates with the GAIT element in the 3' UTR of the Cp mRNA inhibiting its translation. Edited: Matthews, L, 0000-00-00 00:00:00 Authored: Matthews, L, 2004-12-13 00:49:48

ID

http://purl.obolibrary.org/obo/HINO_0016684

comment

While circularization of mRNA during translation initiation is thought to contribute to an increase in the efficiency of translation, it also appears to provide a mechanism for translational silencing. This might be achieved by bringing inhibitory 3' UTR-binding proteins into a position in which they interfere either with the function of the translation initiation complex or with the assembly of the ribosome (Mazumder et al 2001). Translational silencing of Ceruloplasmin (Cp) occurs 16 hrs after its induction by INF-gamma (Mazumder et al., 1997). Although the mechanism by which silencing occurs has not yet been determined, this process is mediated by the L13a subunit of the 60s ribosome and thought to require circularization of the Cp mRNA (Sampath et al., 2003; Mazumder et al., 2001; Mazumder et al., 2003). Between 14 and 16 hrs after INF gamma induction, the L13a subunit of the 60s ribosome is phosphorylated and released from the 60s subunit. Phosphorylated L13a then associates with the GAIT element in the 3' UTR of the Cp mRNA inhibiting its translation.

Edited: Matthews, L, 0000-00-00 00:00:00

Authored: Matthews, L, 2004-12-13 00:49:48

definition source

Pubmed9257859

Pubmed12588972

Reactome, http://www.reactome.org

Pubmed11533233

Pubmed14567916

label

L13a-mediated translational silencing of Ceruloplasmin expression

located_in

http://purl.obolibrary.org/obo/NCBITaxon_9606

prefixIRI

HINO:0016684

prefLabel

L13a-mediated translational silencing of Ceruloplasmin expression

seeAlso

Reactome Database ID Release 43156827

ReactomeREACT_79

subClassOf

http://purl.obolibrary.org/obo/INO_0000021

has_part

http://purl.obolibrary.org/obo/HINO_0014818

http://purl.obolibrary.org/obo/HINO_0014819

http://purl.obolibrary.org/obo/HINO_0014821

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http://scai.fraunhofer.de/PWDICT#ID1421 PTS LOOM