Annotations: 3RO3

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	LGN-binding domain-like	8046086	4004868	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	LGN-binding domain-like	8092839	3002630	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	PF13424	e3ro3A1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF13424	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13181	Tetratricopeptide repeat (TPR_8)	Tetratricopeptide repeat	-	Repeat
A	PF13176	Tetratricopeptide repeat (TPR_7)	Tetratricopeptide repeat	-	Repeat
A	PF13424	Tetratricopeptide repeat (TPR_12)	Tetratricopeptide repeat	-	Repeat
B	PF16748	Inscuteable LGN-binding domain (INSC_LBD)	Inscuteable LGN-binding domain	This is the LGN-binding domain (LBD) of the inscuteable homologue protein. It interacts with the TPR motifs of G-protein-signaling modulator 2 (GPSM2) (LGN) and stabilises LGN [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	G-protein-signaling modulator 2	protein binding binding protein domain specific binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding GTPase regulator activity enzyme regulator activity GDP-dissociation inhibitor activity nucleoside-triphosphatase regulator activity molecular function regulator activity G-protein alpha-subunit binding protein binding binding protein domain specific binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding GTPase regulator activity enzyme regulator activity GDP-dissociation inhibitor activity nucleoside-triphosphatase regulator activity molecular function regulator activity G-protein alpha-subunit binding identical protein binding protein-containing complex binding dynein complex binding	cellular process cell division positive regulation of organelle organization regulation of cytoskeleton organization regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization non-membrane-bounded organelle assembly microtubule cytoskeleton organization positive regulation of biological process positive regulation of spindle assembly cellular component organization cellular component biogenesis cellular component assembly cellular process cell division positive regulation of organelle organization regulation of cytoskeleton organization regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization non-membrane-bounded organelle assembly microtubule cytoskeleton organization positive regulation of biological process positive regulation of spindle assembly cellular component organization cellular component biogenesis cellular component assembly positive regulation of cell cycle process cell cycle cellular component organization or biogenesis regulation of cell cycle chromosome segregation positive regulation of cellular process spindle organization cell cycle process regulation of biological process organelle assembly regulation of cell cycle process positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization biological regulation regulation of microtubule-based process regulation of spindle organization regulation of cellular component biogenesis spindle assembly regulation of organelle organization positive regulation of cell cycle regulation of spindle assembly organelle organization regulation of organelle assembly microtubule-based process cytoskeleton organization regulation of microtubule cytoskeleton organization positive regulation of organelle assembly Ran protein signal transduction cellular response to stimulus small GTPase-mediated signal transduction response to stimulus signaling intracellular signal transduction cell communication intracellular signaling cassette signal transduction regulation of mitotic spindle organization mitotic cell cycle microtubule cytoskeleton organization involved in mitosis mitotic spindle organization mitotic cell cycle process protein localization positive regulation of protein localization to cell periphery regulation of localization protein localization to cell periphery cellular localization regulation of protein localization positive regulation of protein localization to cell cortex regulation of protein localization to cell periphery localization regulation of cellular localization regulation of protein localization to cell cortex cellular macromolecule localization macromolecule localization positive regulation of protein localization protein localization to cell cortex establishment of organelle localization spindle localization establishment or maintenance of cell polarity establishment of mitotic spindle localization establishment of spindle localization establishment of spindle orientation organelle localization establishment of localization in cell establishment of localization establishment of cell polarity establishment of mitotic spindle orientation maintenance of centrosome location centrosome localization microtubule organizing center localization maintenance of organelle location maintenance of location in cell maintenance of location	cell periphery cell cortex intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle centrosome microtubule organizing center cytoskeleton organelle intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytosol cell periphery cell cortex intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle centrosome microtubule organizing center cytoskeleton organelle intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytosol cell cortex region cytoplasmic region protein-containing complex lateral cell cortex lateral part of cell plasma membrane membrane lateral plasma membrane mitotic spindle spindle mitotic spindle pole spindle pole
B	peptide of Protein inscuteable homolog	protein binding binding protein domain specific binding protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity	protein localization localization cellular localization apical protein localization cellular macromolecule localization macromolecule localization cellular process regulation of protein stability biological regulation regulation of biological quality developmental process cellular developmental process cell differentiation establishment of organelle localization protein localization localization cellular localization apical protein localization cellular macromolecule localization macromolecule localization cellular process regulation of protein stability biological regulation regulation of biological quality developmental process cellular developmental process cell differentiation establishment of organelle localization microtubule cytoskeleton organization spindle localization establishment or maintenance of cell polarity mitotic cell cycle cellular component organization establishment of mitotic spindle localization establishment of spindle localization establishment of spindle orientation organelle localization establishment of localization in cell cell cycle cellular component organization or biogenesis microtubule cytoskeleton organization involved in mitosis cell cycle process establishment of localization establishment of cell polarity organelle organization mitotic cell cycle process establishment of mitotic spindle orientation microtubule-based process cytoskeleton organization multicellular organism development multicellular organismal process anatomical structure development nervous system development system development cell division asymmetric cell division regulation of biological process regulation of cellular process regulation of asymmetric cell division regulation of cell division	cell periphery plasma membrane membrane cellular anatomical entity protein-containing complex cell cortex intracellular anatomical structure apical part of cell cell cortex region cytoplasm cytoplasmic region apical cortex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
A	IPR003109	GoLoco motif	Conserved Site
A	IPR019734	Tetratricopeptide repeat	Repeat
B	IPR016024	Armadillo-type fold	Homologous Superfamily
B	IPR000225	Armadillo	Repeat
B	IPR039921	Inscuteable	Family
B	IPR011989	Armadillo-like helical	Homologous Superfamily
B	IPR038205	Protein inscuteable homologue, LGN-binding domain superfamily	Homologous Superfamily
B	IPR045789	Protein inscuteable homologue, C-terminal domain	Domain
B	IPR031938	Protein inscuteable homologue, LGN-binding 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.