The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was: waiting to be named.

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 164: Eukaryotic translation initiation factor 3 subunit...

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 7 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
4 P55884 (/IPI) P55884 (/IPI) Q4G061 (/IPI) Q8JZQ9 (/IPI)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
2 P55884 (/IDA) P55884 (/IDA)
Translation initiation factor activity GO:0003743
Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide.
2 P55884 (/IDA) P55884 (/IDA)
Molecular adaptor activity GO:0060090
The binding activity of a molecule that brings together two or more molecules through a selective, non-covalent, often stoichiometric interaction, permitting those molecules to function in a coordinated way.
2 P55884 (/TAS) P55884 (/TAS)
RNA binding GO:0003723
Interacting selectively and non-covalently with an RNA molecule or a portion thereof.
1 Q8JZQ9 (/ISO)
Translation initiation factor activity GO:0003743
Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide.
1 Q8JZQ9 (/ISO)
Translation initiation factor activity GO:0003743
Functions in the initiation of ribosome-mediated translation of mRNA into a polypeptide.
1 Q1HDZ5 (/ISS)

There are 14 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Regulation of translational initiation GO:0006446
Any process that modulates the frequency, rate or extent of translational initiation.
4 A7MB16 (/ISS) Q1HDZ5 (/ISS) Q4G061 (/ISS) Q569Z1 (/ISS)
Translational initiation GO:0006413
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.
3 P55884 (/IDA) P55884 (/IDA) Q8JZQ9 (/IDA)
Translational initiation GO:0006413
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.
3 A7MB16 (/ISS) Q4G061 (/ISS) Q569Z1 (/ISS)
Translational initiation GO:0006413
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.
2 P55884 (/IC) P55884 (/IC)
Translational initiation GO:0006413
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.
2 P55884 (/TAS) P55884 (/TAS)
Regulation of translational initiation GO:0006446
Any process that modulates the frequency, rate or extent of translational initiation.
2 P55884 (/IDA) P55884 (/IDA)
IRES-dependent viral translational initiation GO:0075522
Process by which viral mRNA translation is initiated, where a domain in the 5' untranslated region (UTR) of the viral mRNA called an internal ribosome entry site (IRES) binds the host 43S preinitiation complex, circumventing regular cap-dependent translation initiation.
2 P55884 (/IDA) P55884 (/IDA)
Viral translational termination-reinitiation GO:0075525
A process which occurs as part of viral mRNA translation which allows expression of a downstream open reading frame (ORF) in a dicistronic mRNA. In this process, ribosomes translate the upstream ORF but following termination, a proportion of 40S subunits remain tethered to the mRNA and go on to re-initiate translation at the start codon of the downstream ORF.
2 P55884 (/IDA) P55884 (/IDA)
Heart rudiment development GO:0003313
The progression of the heart rudiment over time, from its initial formation to the mature structure. The heart rudiment is a cone-like structure that is formed when myocardial progenitor cells of the heart field fuse at the midline. The heart rudiment is the first structure of the heart tube.
1 X1WET9 (/IMP)
Translational initiation GO:0006413
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.
1 Q8JZQ9 (/ISO)
Regulation of translational initiation GO:0006446
Any process that modulates the frequency, rate or extent of translational initiation.
1 Q8JZQ9 (/ISO)
Neural crest cell development GO:0014032
The process aimed at the progression of a neural crest cell over time, from initial commitment of the cell to its specific fate, to the fully functional differentiated cell.
1 X1WET9 (/IMP)
IRES-dependent viral translational initiation GO:0075522
Process by which viral mRNA translation is initiated, where a domain in the 5' untranslated region (UTR) of the viral mRNA called an internal ribosome entry site (IRES) binds the host 43S preinitiation complex, circumventing regular cap-dependent translation initiation.
1 Q8JZQ9 (/ISO)
Viral translational termination-reinitiation GO:0075525
A process which occurs as part of viral mRNA translation which allows expression of a downstream open reading frame (ORF) in a dicistronic mRNA. In this process, ribosomes translate the upstream ORF but following termination, a proportion of 40S subunits remain tethered to the mRNA and go on to re-initiate translation at the start codon of the downstream ORF.
1 Q8JZQ9 (/ISO)

There are 8 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Eukaryotic translation initiation factor 3 complex GO:0005852
A complex of several polypeptides that plays at least two important roles in protein synthesis: First, eIF3 binds to the 40S ribosome and facilitates loading of the Met-tRNA/eIF2.GTP ternary complex to form the 43S preinitiation complex. Subsequently, eIF3 apparently assists eIF4 in recruiting mRNAs to the 43S complex. The eIF3 complex contains five conserved core subunits, and may contain several additional proteins; the non-core subunits are thought to mediate association of the complex with specific sets of mRNAs.
4 A7MB16 (/ISS) Q1HDZ5 (/ISS) Q4G061 (/ISS) Q569Z1 (/ISS)
Eukaryotic translation initiation factor 3 complex GO:0005852
A complex of several polypeptides that plays at least two important roles in protein synthesis: First, eIF3 binds to the 40S ribosome and facilitates loading of the Met-tRNA/eIF2.GTP ternary complex to form the 43S preinitiation complex. Subsequently, eIF3 apparently assists eIF4 in recruiting mRNAs to the 43S complex. The eIF3 complex contains five conserved core subunits, and may contain several additional proteins; the non-core subunits are thought to mediate association of the complex with specific sets of mRNAs.
3 P55884 (/IDA) P55884 (/IDA) Q8JZQ9 (/IDA)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 P55884 (/TAS) P55884 (/TAS)
Extracellular exosome GO:0070062
A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
2 P55884 (/HDA) P55884 (/HDA)
Eukaryotic translation initiation factor 3 complex GO:0005852
A complex of several polypeptides that plays at least two important roles in protein synthesis: First, eIF3 binds to the 40S ribosome and facilitates loading of the Met-tRNA/eIF2.GTP ternary complex to form the 43S preinitiation complex. Subsequently, eIF3 apparently assists eIF4 in recruiting mRNAs to the 43S complex. The eIF3 complex contains five conserved core subunits, and may contain several additional proteins; the non-core subunits are thought to mediate association of the complex with specific sets of mRNAs.
1 Q8JZQ9 (/ISO)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
1 Q8JZQ9 (/EXP)
Synapse GO:0045202
The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
1 Q8JZQ9 (/IDA)
Eukaryotic translation initiation factor 3 complex, eIF3m GO:0071541
An eukaryotic translation initiation factor 3 complex that contains the PCI-domain protein eIF3m.
1 Q8JZQ9 (/IDA)
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