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MTIF3 binds 28S ribosomal subunit
Stable Identifier
R-HSA-5368279
Type
Reaction [binding]
Species
Homo sapiens
Compartment
mitochondrial matrix
,
mitochondrial inner membrane
ReviewStatus
5/5
Locations in the PathwayBrowser
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Metabolism of proteins (Homo sapiens)
Translation (Homo sapiens)
Mitochondrial translation (Homo sapiens)
Mitochondrial translation initiation (Homo sapiens)
MTIF3 binds 28S ribosomal subunit (Homo sapiens)
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As inferred from bovine mitochondrial homologs, MTIF3 (IF-3Mt, IF3mt) binds the 28S ribosomal subunit in preparation for binding mRNA and initiating translation. MTIF3 also dissociates 55S particles that have not already been dissociated by GFM2 plus MRRF and displaces N-formylmethionyl-tRNA from the 28S subunit in the absence of mRNA but cannot displace mRNA from the 28S subunit. The activity of MTIF3 is necessary for translation initiation.. The 28S subunit associates with the matrix-side face of the inner mitochondrial membrane and translation products are inserted directly into the membrane.
Participants
Input
28S ribosomal subunit [mitochondrial inner membrane]
(Homo sapiens)
MTIF3 [mitochondrial matrix]
(Homo sapiens)
Output
28S ribosomal subunit:MTIF3 [mitochondrial inner membrane]
(Homo sapiens)
Participates
as an event of
Mitochondrial translation initiation (Homo sapiens)
Inferred From
MTIF3 binds 28S ribosomal subunit (Bos taurus)
Authored
May, B (2014-04-26)
Reviewed
Chrzanowska-Lightowlers, ZM (2014-08-29)
Spremulli, LL (2014-09-20)
Created
May, B (2014-04-26)
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