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 (2022-06-29)
A [auth C]	SCOP2 Family	PCI domain (PINT motif)	8093047	4000147	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	TPR-like	8093043	3001345	SCOP2 (2022-06-29)
A [auth C]	SCOP2 Superfamily	Winged helix DNA-binding domain	8093050	3000034	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth C]	PCI	e4u1cC2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PCI	ECOD (1.6)
A [auth C]	eIF-3c_N	e4u1cC1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: eIF-3c_N	ECOD (1.6)
B [auth A]	PCI_3	e4u1cA2	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PCI_3	ECOD (1.6)
B [auth A]	KOG2072	e4u1cA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: KOG2072	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
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
B [auth A]	PF22591	eIF3a, PCI domain, TPR-like region (eIF3a_PCI_TPR-like)	eIF3a, PCI domain, TPR-like region	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	Eukaryotic translation initiation factor 3 subunit C	translation factor activity translation initiation factor activity RNA binding binding nucleic acid binding mRNA binding protein binding translation initiation factor binding	biosynthetic process translational initiation metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression macromolecule biosynthetic process ribonucleoprotein complex biogenesis protein-containing complex organization formation of cytoplasmic translation initiation complex protein-RNA complex assembly biosynthetic process translational initiation metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression macromolecule biosynthetic process ribonucleoprotein complex biogenesis protein-containing complex organization formation of cytoplasmic translation initiation complex protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly protein-containing complex assembly cytoplasmic translation cytoplasmic translational initiation cellular component organization or biogenesis	intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule protein-containing complex eukaryotic 43S preinitiation complex ribonucleoprotein complex intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule protein-containing complex eukaryotic 43S preinitiation complex ribonucleoprotein complex cytosolic translation preinitiation complex multi-eIF complex eukaryotic translation initiation factor 3 complex eukaryotic 48S preinitiation complex
B [auth A]	Eukaryotic translation initiation factor 3 subunit A	translation factor activity translation initiation factor activity RNA binding binding nucleic acid binding mRNA binding	biosynthetic process translational initiation metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression macromolecule biosynthetic process translation reinitiation cytoplasmic translation cytoplasmic translational initiation ribonucleoprotein complex biogenesis biosynthetic process translational initiation metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process translation gene expression macromolecule biosynthetic process translation reinitiation cytoplasmic translation cytoplasmic translational initiation ribonucleoprotein complex biogenesis protein-containing complex organization formation of cytoplasmic translation initiation complex 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	intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule protein-containing complex eukaryotic 43S preinitiation complex ribonucleoprotein complex intracellular anatomical structure cytoplasmic ribonucleoprotein granule intracellular membraneless organelle ribonucleoprotein granule intracellular organelle cellular anatomical structure organelle membraneless organelle cytoplasm supramolecular complex cytoplasmic stress granule protein-containing complex eukaryotic 43S preinitiation complex ribonucleoprotein complex cytosolic translation preinitiation 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
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
B [auth A]	IPR027512	Eukaryotic translation initiation factor 3 subunit A	Family
B [auth A]	IPR000717	Proteasome component (PCI) domain	Domain
B [auth A]	IPR054711	eIF3a, PCI domain, TPR-like region	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 R01GM157729.