Annotations: 4U1C

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth C]	SCOP2 Family	Eukaryotic translation initiation factor 3 subunit C (EIF3C) N-terminal domain-like	8047253	4005530	SCOP2 (2021-05-27)
A [auth C]	SCOP2 Family	PCI domain (PINT motif)	8093047	4000147	SCOP2 (2021-05-27)
A [auth C]	SCOP2 Superfamily	TPR-like	8093043	3001345	SCOP2 (2021-05-27)
A [auth C]	SCOP2 Superfamily	Winged helix DNA-binding domain	8093050	3000034	SCOP2 (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth A]	PF01399	e4u1cA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01399	ECOD (1.6)
B [auth A]	PF22591	e4u1cA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF22591	ECOD (1.6)
A [auth C]	PF01399	e4u1cC2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01399	ECOD (1.6)
A [auth C]	PF05470	e4u1cC1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF05470	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	4.10.860.10	Few Secondary Structures	Irregular	DNA Excision Repair, Uvrb	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A]	PF22591	eIF3a, PCI domain, TPR-like region (eIF3a_PCI_TPR-like)	eIF3a, PCI domain, TPR-like region	This entry represents the TPR-like region of the PCI domain of the Eukaryotic translation initiation factor 3 subunit A from Saccharomyces cerevisiae (eIF3a), the RNA-binding component of the eukaryotic translation initiation factor 3 (eIF-3) complex ...	This entry represents the TPR-like region of the PCI domain of the Eukaryotic translation initiation factor 3 subunit A from Saccharomyces cerevisiae (eIF3a), the RNA-binding component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which specifically targets and initiates translation of a subset of mRNAs involved in cell proliferation. This region folds into flatly arranged helical repeats [1].	Domain
A [auth C]	PF01399	PCI domain (PCI)	PCI domain	This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth A]	Eukaryotic translation initiation factor 3 subunit A	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding RNA binding mRNA binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process translation reinitiation cytoplasmic translation cytoplasmic translational initiation ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization formation of cytoplasmic translation initiation complex	intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule protein-containing complex translation preinitiation complex eukaryotic 43S preinitiation complex intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule protein-containing complex translation preinitiation complex eukaryotic 43S preinitiation complex ribonucleoprotein complex incipient cellular bud site site of polarized growth multi-eIF complex eukaryotic translation initiation factor 3 complex eukaryotic 48S preinitiation complex eukaryotic translation initiation factor 3 complex, eIF3e eukaryotic translation initiation factor 3 complex, eIF3m
A [auth C]	Eukaryotic translation initiation factor 3 subunit C	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding RNA binding mRNA binding protein binding translation initiation factor binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process ribonucleoprotein complex biogenesis protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cellular component organization or biogenesis protein-containing complex organization formation of cytoplasmic translation initiation complex cytoplasmic translation cytoplasmic translational initiation	intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule protein-containing complex translation preinitiation complex eukaryotic 43S preinitiation complex intracellular anatomical structure cytoplasmic ribonucleoprotein granule cellular anatomical entity ribonucleoprotein granule intracellular organelle organelle intracellular non-membrane-bounded organelle cytoplasm supramolecular complex non-membrane-bounded organelle cytoplasmic stress granule protein-containing complex translation preinitiation complex eukaryotic 43S preinitiation complex ribonucleoprotein complex multi-eIF complex eukaryotic translation initiation factor 3 complex eukaryotic 48S preinitiation complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A]	IPR027512	Eukaryotic translation initiation factor 3 subunit A	Family
B [auth A]	IPR000717	Proteasome component (PCI) domain	Domain
A [auth C]	IPR008905	Eukaryotic translation initiation factor 3 subunit C, N-terminal domain	Domain
A [auth C]	IPR027516	Eukaryotic translation initiation factor 3 subunit C	Family
A [auth C]	IPR000717	Proteasome component (PCI) domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.