Names & Taxonomy

Uniprot ID:
Q8N442
Entry Name:
GUF1_HUMAN
Status:
reviewed
Protein Names:
Translation factor GUF1, mitochondrial (EC 3.6.5.-) (Elongation factor 4 homolog) (EF-4) (GTPase GUF1) (Ribosomal back-translocase)
Gene Names:
GUF1
Gene Names Primary:
GUF1
Organism:
Homo sapiens (Human)

Structure

Length:
669
Sequence:
MWTLVGRGWGCARALAPRATGAALLVAPGPRSAPTLGAAPESWATDRLYSSAEFKEKLDMSRFPVENIRNFSIVAHVDHGKSTLADRLLELTGTIDKTKNNKQVLDKLQVERERGITVKAQTASLFYNCEGKQYLLNLIDTPGHVDFSYEVSRSLSACQGVLLVVDANEGIQAQTVANFFLAFEAQLSVIPVINKIDLKNADPERVENQIEKVFDIPSDECIKISAKLGTNVESVLQAIIERIPPPKVHRKNPLRALVFDSTFDQYRGVIANVALFDGVVSKGDKIVSAHTQKTYEVNEVGVLNPNEQPTHKLYAGQVGYLIAGMKDVTEAQIGDTLCLHKQPVEPLPGFKSAKPMVFAGMYPLDQSEYNNLKSAIEKLTLNDSSVTVHRDSSLALGAGWRLGFLGLLHMEVFNQRLEQEYNASVILTTPTVPYKAVLSSSKLIKEHREKEITIINPAQFPDKSKVTEYLEPVVLGTIITPDEYTGKIMMLCEARRAVQKNMIFIDQNRVMLKYLFPLNEIVVDFYDSLKSLSSGYASFDYEDAGYQTAELVKMDILLNGNTVEELVTVVHKDKAHSIGKAICERLKDSLPRQLFEIAIQAAIGSKIIARETVKAYRKNVLAKCYGGDITRKMKLLKRQAEGKKKLRKIGNVEVPKDAFIKVLKTQSSK
Proteomes:
UP000005640

Subcellular location

Subcellular Location:
Mitochondrion inner membrane

Function

Function:
Promotes mitochondrial protein synthesis. May act as a fidelity factor of the translation reaction, by catalyzing a one-codon backward translocation of tRNAs on improperly translocated ribosomes. Binds to mitochondrial ribosomes in a GTP-dependent manner.
Catalytic Activity:
GTP + H(2)O = GDP + phosphate.
Gene Ontology Go:
mitochondrial inner membrane
mitochondrion
GTP binding
GTPase activity
translation
Gene Ontology Biological Process:
translation
Gene Ontology Molecular Function:
GTPase activity
GTP binding
Gene Ontology Cellular Component:
mitochondrial inner membrane
mitochondrion
Keywords:
Complete proteome
GTP-binding
Hydrolase
Isopeptide bond
Membrane
Mitochondrion
Mitochondrion inner membrane
Nucleotide-binding
Polymorphism
Protein biosynthesis
Reference proteome
Transit peptide
Ubl conjugation

Publication

PubMed ID:
14702039 15489334 17203973