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IPR016190 is a Translation initiation factor IF2/IF5, zinc-binding.
<p>The beta subunit of archaeal and eukaryotic translation initiation factor 2 (IF2beta) and the N-terminal domain of translation initiation factor 5 (IF5) show significant sequence homology [[cite:PUB00017012]]. Archaeal IF2beta contains two independent structural domains: an N-terminal mixed α/β core domain (topological similarity to the common core of ribosomal proteins L23 and L15e), and a C-terminal domain consisting of a zinc-binding C4 finger [[cite:PUB00017014]]. Archaeal IF2beta is a ribosome-dependent GTPase that stimulates the binding of initiator Met-tRNA(i)(Met) to the ribosomes, even in the absence of other factors [[cite:PUB00042630]]. The C-terminal domain of eukaryotic IF5 is involved in the formation of the multi-factor complex (MFC), an important intermediate for the 43S pre-initiation complex assembly [[cite:PUB00041778]]. IF5 interacts directly with IF1, IF2beta and IF3c, which together with IF2-bound Met-tRNA(i)(Met) form the MFC.</p> <p>This entry represents the zinc-binding C4 domain with a zinc-bound β-ribbon motif, which is found in IF2beta and IF5 [[cite:PUB00017012]].</p>
This description is obtained from EB-eye REST.
GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .
GO term | Namespace | Name | Definition | Relationships |
---|---|---|---|---|
Molecular function | Translation initiation factor activity | Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide. | ||
Biological process | Translational initiation | The process preceding formation of the peptide bond between the first two amino acids of a protein. This includes the formation of a complex of the ribosome, mRNA or circRNA, and an initiation complex that contains the first aminoacyl-tRNA. |
Transcript | Name | Description | Predicted domains | Domain count |
---|---|---|---|---|
– | Eukaryotic translation initiation factor [Medicago truncatula] gi|357508251|ref|XP_003624414.1| | 21 | ||
– | PREDICTED: eukaryotic translation initiation factor 5-like [Glycine max] gi|356499628|ref|XP_003518639.1| | 19 | ||
– | Eukaryotic translation initiation factor [Medicago truncatula] gi|357508251|ref|XP_003624414.1| | 11 | ||
– | PREDICTED: eukaryotic translation initiation factor 2 subunit beta-like [Glycine max] gi|356553184|ref|XP_003544938.1| | 9 | ||
– | PREDICTED: eukaryotic translation initiation factor 2 subunit beta-like isoform X1 [Cicer arietinum] gi|502096398|ref|XP_004490723.1| | 10 | ||
– | Eukaryotic translation initiation factor 2 subunit beta; TAIR: AT5G20920.1 eukaryotic translation initiation factor 2 beta subunit; Swiss-Prot: sp|P55871|IF2B_MALDO Eukaryotic translation initiation factor 2 subunit beta; TrEMBL-Plants: tr|I3SDH8|I3SDH8_LOTJA Uncharacterized protein; Found in the gene: LotjaGi1g1v0105300 | 10 | ||
– | Eukaryotic translation initiation factor 5; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|A0A0L9TDF5|A0A0L9TDF5_PHAAN Uncharacterized protein; Found in the gene: LotjaGi1g1v0544600 | 22 | ||
– | Eukaryotic translation initiation factor 5; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|A0A0L9TDF5|A0A0L9TDF5_PHAAN Uncharacterized protein; Found in the gene: LotjaGi1g1v0544600 | 22 | ||
– | Eukaryotic translation initiation factor 5; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|A0A0L9TDF5|A0A0L9TDF5_PHAAN Uncharacterized protein; Found in the gene: LotjaGi1g1v0544600 | 22 | ||
– | Eukaryotic translation initiation factor 5; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|A0A0L9TDF5|A0A0L9TDF5_PHAAN Uncharacterized protein; Found in the gene: LotjaGi1g1v0544800 | 21 | ||
– | Eukaryotic translation initiation factor, putative; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|B9N7N9|B9N7N9_POPTR Eukaryotic translation initiation factor 5-2 family protein; Found in the gene: LotjaGi2g1v0237700_LC | 12 | ||
– | Eukaryotic translation initiation factor, putative; TAIR: AT1G36730.1 Translation initiation factor IF2/IF5; Swiss-Prot: sp|P48724|IF5_PHAVU Eukaryotic translation initiation factor 5; TrEMBL-Plants: tr|B9N7N9|B9N7N9_POPTR Eukaryotic translation initiation factor 5-2 family protein; Found in the gene: LotjaGi2g1v0237700_LC | 12 | ||
– | Eukaryotic translation initiation factor 2 subunit beta; TAIR: AT5G20920.1 eukaryotic translation initiation factor 2 beta subunit; Swiss-Prot: sp|P55871|IF2B_MALDO Eukaryotic translation initiation factor 2 subunit beta; TrEMBL-Plants: tr|A0A1J7HMN2|A0A1J7HMN2_LUPAN Uncharacterized protein; Found in the gene: LotjaGi6g1v0044400 | 10 |
A list of co-occurring predicted domains within the L. japonicus gene space:
Predicted domain | Source | Observations | Saturation (%) |
---|---|---|---|
SSF75689 | SUPERFAMILY | 1 | 7.69 |