Protein: Eukaryotic translation initiation factor 3 subunit E (A0A7I2V4B4)
Organism: Homo sapiens (Human)
Function: Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiation of protein synthesis. The eIF-3 complex associates with the 40S ribosome and facilitates the recruitment of eIF-1, eIF-1A, eIF- 2:GTP:methionyl-tRNAi and eIF-5 to form the 43S pre-initiation complex (43S PIC). The eIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanning of the mRNA for AUG recognition. The eIF-3 complex is also required for disassembly and recycling of post-termination ribosomal complexes and subsequently prevents premature joining of the 40S and 60S ribosomal subunits prior to initiation. The eIF-3 complex specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation, including cell cycling, differentiation and apoptosis, and uses different modes of RNA stem-loop binding to exert either translational activation or repression. Required for nonsense-mediated mRNA decay (NMD); may act in conjunction with UPF2 to divert mRNAs from translation to the NMD pathway. May interact with MCM7 and EPAS1 and regulate the proteasome-mediated degradation of these proteins
Subcellular location: Cytoplasm. Nucleus. Nucleus, PML body
InterPro domains:
- IPR000717: Proteasome component (PCI) domain (domain) [231-421]
- IPR019010: Eukaryotic translation initiation factor 3 subunit E, N-terminal (domain) [33-148]
- IPR036390: Winged helix DNA-binding domain superfamily (homologous_superfamily) [331-406]
- IPR016650: Eukaryotic translation initiation factor 3 subunit E (family) [2-444]
Sequence:
MLNTPETLQCSAKDSKHFIPKECSIPGENRPPSDTGKTVKIYNEKELLQGKLDLLSDTNMVDFAMDVYKNLYSDDIPHALREKRTTVVAQLKQLQAETEPIVKMFEDPETTRQMQSTRDGRMLFDYLADKHGFRQEYLDTLYRYAKFQYECGNYSGAAEYLYFFRVLVPATDRNALSSLWGKLASEILMQNWDAAMEDLTRLKETIDNNSVSSPLQSLQQRTWLIHWSLFVFFNHPKGRDNIIDLFLYQPQYLNAIQTMCPHILRYLTTAVITNKDVRKRRQVLKDLVKVIQQESYTYKDPITEFVECLYVNFDFDGAQKKLRECESVLVNDFFLVACLEDFIENARLFIFETFCRIHQCISINMLADKLNMTPEEAERWIVNLIRNARLDAKIDSKLGHVVMGNNAVSPYQQVIEKTKSLSFRSQMLAMNIEKKLNQNSRSEAPNWATQDSGFY
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0045182 (translation regulator activity), GO:0005488 (binding), GO:0097159 (organic cyclic compound binding), GO:1901363 (heterocyclic compound binding), GO:0090079 (translation regulator activity, nucleic acid binding), GO:0005515 (protein binding), GO:0003676 (nucleic acid binding), GO:0050839 (cell adhesion molecule binding), GO:0008135 (translation factor activity, RNA binding), GO:0045296 (cadherin binding), GO:0003723 (RNA binding), GO:0003743 (translation initiation factor activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0048518 (positive regulation of biological process), GO:0050789 (regulation of biological process), GO:0065007 (biological regulation), GO:0009987 (cellular process), GO:0048519 (negative regulation of biological process), GO:0009058 (biosynthetic process), GO:0019222 (regulation of metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0071704 (organic substance metabolic process), GO:0009056 (catabolic process), GO:0009892 (negative regulation of metabolic process), GO:0044237 (cellular metabolic process), GO:0050794 (regulation of cellular process), GO:0009893 (positive regulation of metabolic process), GO:0065009 (regulation of molecular function), GO:0044238 (primary metabolic process), GO:0048522 (positive regulation of cellular process), GO:0044093 (positive regulation of molecular function), GO:1901564 (organonitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0010604 (positive regulation of macromolecule metabolic process), GO:0046483 (heterocycle metabolic process), GO:0044248 (cellular catabolic process), GO:0019538 (protein metabolic process), GO:0060255 (regulation of macromolecule metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:0051098 (regulation of binding), GO:0043170 (macromolecule metabolic process), GO:0009891 (positive regulation of biosynthetic process), GO:1901360 (organic cyclic compound metabolic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0031325 (positive regulation of cellular metabolic process), GO:0006413 (translational initiation), GO:0010605 (negative regulation of macromolecule metabolic process), GO:0009889 (regulation of biosynthetic process), GO:0051171 (regulation of nitrogen compound metabolic process), GO:0051173 (positive regulation of nitrogen compound metabolic process), GO:0031323 (regulation of cellular metabolic process), GO:0043603 (amide metabolic process), GO:0080090 (regulation of primary metabolic process), GO:1901575 (organic substance catabolic process), GO:0044260 (cellular macromolecule metabolic process), GO:0034655 (nucleobase-containing compound catabolic process), GO:0009059 (macromolecule biosynthetic process), GO:0044270 (cellular nitrogen compound catabolic process), GO:0006518 (peptide metabolic process), GO:0034250 (positive regulation of amide metabolic process), GO:0010556 (regulation of macromolecule biosynthetic process), GO:0051246 (regulation of protein metabolic process), GO:0019439 (aromatic compound catabolic process), GO:0046700 (heterocycle catabolic process), GO:0043604 (amide biosynthetic process), GO:0010628 (positive regulation of gene expression), GO:0010468 (regulation of gene expression), GO:0051099 (positive regulation of binding), GO:1901566 (organonitrogen compound biosynthetic process), GO:0010557 (positive regulation of macromolecule biosynthetic process), GO:0009057 (macromolecule catabolic process), GO:0006412 (translation), GO:0034248 (regulation of amide metabolic process), GO:0090304 (nucleic acid metabolic process), GO:0044265 (cellular macromolecule catabolic process), GO:1901361 (organic cyclic compound catabolic process), GO:0031326 (regulation of cellular biosynthetic process), GO:0051247 (positive regulation of protein metabolic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0034645 (cellular macromolecule biosynthetic process), GO:0010467 (gene expression), GO:0010629 (negative regulation of gene expression), GO:0031328 (positive regulation of cellular biosynthetic process), GO:0016070 (RNA metabolic process), GO:0043043 (peptide biosynthetic process), GO:0006402 (mRNA catabolic process), GO:0006401 (RNA catabolic process), GO:2000112 (regulation of cellular macromolecule biosynthetic process), GO:0006417 (regulation of translation), GO:0045727 (positive regulation of translation), GO:0010608 (post-transcriptional regulation of gene expression), GO:0000956 (nuclear-transcribed mRNA catabolic process), GO:0016071 (mRNA metabolic process), GO:0000184 (nuclear-transcribed mRNA catabolic process, nonsense-mediated decay)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005737 (cytoplasm), GO:0005829 (cytosol), GO:0005622 (intracellular anatomical structure)