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Gene: C06G3.7   

C06G3.7SMapS_parentSequenceSUPERLINK_RW4
ChromosomeIV
Identity (5)
Gene_info Gene_classtrxr
GO_term (6)
Structured_description Provisional_description C06G3.7 encodes an homolog of the mammalian thioredoxin reductase isozymes TR1 and TR2; like its mammalian homologs, C06G3.7 has a TGA-encoded C-terminal penultimate selenocysteine (Sec) residue; labelling of C. elegans with selenium-75 demonstrates that TR-Se is the major naturally occurring selenoprotein in C. elegans, and computational analysis indicates that it is probably the only selenoprotein encoded by the genome; the 3'-untranslated region of this gene contains a selenocysteine insertion sequence that is functional in mammalian cell culture; by phylogenetic profiling, C06G3.7 protein is predicted to be mitochondrial. Paper_evidence WBPaper00003571
WBPaper00003621
WBPaper00004424
WBPaper00013278
Person_evidenceWBPerson567
Curator_confirmedWBPerson567
Date_last_updated17 Jun 2004 00:00:00
The C06G3.7 gene contains a a TGA selenocysteine codon at the same position as its mammalian homolog TTR, and a functional selenocysteine insertion sequence (SECIS) element.
The TGA SeCys codon of C06G3.7 is currently treated as an actual stop to the CDS, and there may be other such cases in the genome as well.
This gene encodes a protein predicted by Eisenberg and coworkers, with 68% accuracy, to be mitochondrial.
Proteins localized to a given organelle by experiments tend to share a characteristic phylogenetic distribution of their homologs, called a phylogenetic profile.
For instance, mitochondrial proteins can be identified effectively by their phylogenetic profiles.
By applying phylogenetic profile analysis to the C. elegans genome, Eisenberg and coworkers inferred that this gene, along with 2-4% of all the nuclear genes in C. elegans, encodes a mitochondrial protein.
The large fraction of organism-specific and eukaryote-derived genes suggests that C. elegans mitochondria perform specialized roles absent from prokaryotic mitochondrial ancestors.
Concise_descriptionC06G3.7 encodes an homolog of the mammalian thioredoxin reductase isozymes TR1 and TR2; like its mammalian homologs, C06G3.7 has a TGA-encoded C-terminal penultimate selenocysteine (Sec) residue; labelling of C. elegans with selenium-75 demonstrates that TR-Se is the major naturally occurring selenoprotein in C. elegans, and computational analysis indicates that it is probably the only selenoprotein encoded by the genome; the 3'-untranslated region of this gene contains a selenocysteine insertion sequence that is functional in mammalian cell culture; by phylogenetic profiling, C06G3.7 protein is predicted to be mitochondrial.
Molecular_info (6)
Experimental_info RNAi_resultCenix:39-b9
WB_RNAi_resultCenix:39-b9
MethodGene