3SF4 | pdb_00003sf4

Crystal structure of the complex between the conserved cell polarity proteins Inscuteable and LGN

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
F	SCOP2B Superfamily	LGN-binding domain-like	8092838	3002630	SCOP2B (2022-06-29)
D	SCOP2 Family	LGN-binding domain-like	8046085	4004868	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	LGN-binding domain-like	8092838	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)
C	TPR_11_1	e3sf4C4	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_1	ECOD (1.6)
B	TPR_11_1	e3sf4B5	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_1	ECOD (1.6)
A	TPR_11_1	e3sf4A3	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	6.20.200.10	Special	Other non-globular	Defensin A-like	Inscuteable LGN-binding domain	CATH (4.3.0)
E	6.20.200.10	Special	Other non-globular	Defensin A-like	Inscuteable LGN-binding domain	CATH (4.3.0)
D	6.20.200.10	Special	Other non-globular	Defensin A-like	Inscuteable LGN-binding domain	CATH (4.3.0)
C	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)
B	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)
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
D, E, F	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
A, B, C	PF13181	Tetratricopeptide repeat (TPR_8)	Tetratricopeptide repeat	-	Repeat
A, B, C	PF13176	Tetratricopeptide repeat (TPR_7)	Tetratricopeptide repeat	-	Repeat
A, B, C	PF13374	Tetratricopeptide repeat (TPR_10)	Tetratricopeptide repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, E, F	Protein inscuteable homolog	protein binding binding protein domain specific binding protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity	localization apical protein localization macromolecule localization intracellular protein localization regulation of protein stability biological regulation regulation of biological quality developmental process cellular developmental process cell differentiation cellular process multicellular organism development multicellular organismal process anatomical structure development localization apical protein localization macromolecule localization intracellular protein localization regulation of protein stability biological regulation regulation of biological quality developmental process cellular developmental process cell differentiation cellular process 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 cellular anatomical structure plasma membrane membrane protein-containing complex cell cortex intracellular anatomical structure apical part of cell cell cortex region cytoplasm cytoplasmic region apical cortex
A, B, C	G-protein-signaling modulator 2	protein binding binding protein domain specific binding nucleoside phosphate 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 binding binding protein domain specific binding nucleoside phosphate 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	protein localization to postsynaptic specialization membrane protein localization to postsynaptic membrane protein localization to cell periphery cellular localization protein localization to synapse biological regulation localization within membrane protein localization to membrane protein-containing complex localization neurotransmitter receptor localization to postsynaptic specialization membrane localization regulation of postsynaptic membrane neurotransmitter receptor levels macromolecule localization protein localization to organelle protein localization to postsynaptic specialization membrane protein localization to postsynaptic membrane protein localization to cell periphery cellular localization protein localization to synapse biological regulation localization within membrane protein localization to membrane protein-containing complex localization neurotransmitter receptor localization to postsynaptic specialization membrane localization regulation of postsynaptic membrane neurotransmitter receptor levels macromolecule localization protein localization to organelle cellular process protein localization to postsynapse intracellular protein localization regulation of biological quality protein localization to cell junction receptor localization to synapse 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 microtubule cytoskeleton organization positive regulation of biological process positive regulation of spindle assembly membraneless organelle 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 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 regulation of mitotic spindle organization mitotic cell cycle microtubule cytoskeleton organization involved in mitosis mitotic spindle organization mitotic cell cycle process response to light stimulus response to light intensity response to stimulus response to radiation response to abiotic stimulus positive regulation of protein localization to cell periphery regulation of localization regulation of protein localization positive regulation of protein localization to cell cortex regulation of protein localization to cell periphery regulation of protein localization to cell cortex 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 cellular response to stimulus signaling G protein-coupled receptor signaling pathway signal transduction cell communication	cell periphery cell cortex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle centrosome microtubule organizing center cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytosol cell periphery cell cortex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle centrosome microtubule organizing center cytoskeleton organelle membraneless organelle intracellular membraneless organelle microtubule cytoskeleton cytosol cell cortex region cytoplasmic region protein-containing complex lateral cell cortex lateral part of cell postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization synapse cell junction asymmetric synapse plasma membrane membrane lateral plasma membrane mitotic spindle spindle mitotic spindle pole spindle pole

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D, E, F	IPR016024	Armadillo-type fold	Homologous Superfamily
D, E, F	IPR000225	Armadillo	Repeat
D, E, F	IPR039921	Inscuteable	Family
D, E, F	IPR011989	Armadillo-like helical	Homologous Superfamily
D, E, F	IPR038205	Protein inscuteable homologue, LGN-binding domain superfamily	Homologous Superfamily
D, E, F	IPR045789	Protein inscuteable homologue, C-terminal domain	Domain
D, E, F	IPR031938	Protein inscuteable homologue, LGN-binding domain	Domain
A, B, C	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
A, B, C	IPR003109	GoLoco motif	Conserved Site
A, B, C	IPR019734	Tetratricopeptide repeat	Repeat
A, B, C	IPR052386	G-protein-signaling modulator	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
D, E, F	Pharos: Q1MX18	pancreatic intraductal papillary-mucinous neoplasm ulcerative colitis
A, B, C	Pharos: P81274	Chudley-McCullough syndrome osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pituitary cancer Becker muscular dystrophy cystic fibrosis esophageal adenocarcinoma hydrocephalus juvenile dermatomyositis Malformations of Cortical Development non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia spina bifida breast cancer Chudley-McCullough syndrome osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pituitary cancer Becker muscular dystrophy cystic fibrosis esophageal adenocarcinoma hydrocephalus juvenile dermatomyositis Malformations of Cortical Development non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia spina bifida breast cancer diabetes mellitus facioscapulohumeral muscular dystrophy intellectual disability limb-girdle muscular dystrophy malignant ependymoma nonsyndromic genetic deafness pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma Duchenne muscular dystrophy glioblastoma interstitial cystitis lung carcinoma malignant glioma

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.