1VF6

2.1 Angstrom crystal structure of the PALS-1-L27N and PATJ L27 heterodimer complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
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
Membrane Protein Annotation: OPM

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1vf6a_	All alpha proteins	L27 domain	L27 domain	L27 domain	Associated tight junction protein Pals-1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1vf6b_	All alpha proteins	L27 domain	L27 domain	L27 domain	Associated tight junction protein Pals-1	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1vf6d_	All alpha proteins	L27 domain	L27 domain	L27 domain	Maguk p55 subfamily member 5, Patj	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1vf6c1	All alpha proteins	L27 domain	L27 domain	L27 domain	Maguk p55 subfamily member 5, Patj	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1vf6c2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	L27 domain	8023341	4000688	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	L27 domain	8035721	3001054	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	L27 domain	8035721	3001054	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	L27 domain	8035724	3001054	SCOP2B (2022-06-29)
C	SCOP2 Family	L27 domain	8023344	4000688	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	L27 domain	8035724	3001054	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	L27_2	e1vf6A1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: L27_2	ECOD (1.6)
B	L27_2	e1vf6B1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: L27_2	ECOD (1.6)
D	L27_N	e1vf6D1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: L27_N	ECOD (1.6)
C	L27_2	e1vf6C1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: L27_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.650	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	L27 domain	CATH (4.3.0)
B	1.10.287.650	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	L27 domain	CATH (4.3.0)
D	1.10.287.650	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	L27 domain	CATH (4.3.0)
C	1.10.287.650	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	L27 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, D	PF09060	L27_N (L27_N)	L27_N	The L27_N domain plays a role in the biogenesis of tight junctions and in the establishment of cell polarity in epithelial cells. Each L27_N domain consists of three alpha-helices, the first two of which form an antiparallel coiled-coil. Two L27 doma ...	The L27_N domain plays a role in the biogenesis of tight junctions and in the establishment of cell polarity in epithelial cells. Each L27_N domain consists of three alpha-helices, the first two of which form an antiparallel coiled-coil. Two L27 domains come together to form a four-helical bundle with the antiparallel coiled-coils formed by the first two helices. The third helix of each domain forms another coiled-coil packing at one end of the four-helix bundle, creating a large hydrophobic interface: the hydrophobic interactions are the major force that drives heterodimer formation [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PALS1-associated tight junction protein	-	tight junction organization cellular component organization cellular component biogenesis cell junction organization cellular component assembly tight junction assembly cell junction assembly cellular process cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization establishment of cell polarity establishment or maintenance of bipolar cell polarity establishment of monopolar cell polarity tight junction organization cellular component organization cellular component biogenesis cell junction organization cellular component assembly tight junction assembly cell junction assembly cellular process cellular component organization or biogenesis cell-cell junction assembly cell-cell junction organization establishment of cell polarity establishment or maintenance of bipolar cell polarity establishment of monopolar cell polarity establishment or maintenance of monopolar cell polarity establishment of apical/basal cell polarity establishment or maintenance of apical/basal cell polarity establishment or maintenance of cell polarity cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction intracellular signal transduction cell communication establishment or maintenance of epithelial cell apical/basal polarity	cell junction cellular anatomical entity apical part of cell cell periphery membrane plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle cell junction cellular anatomical entity apical part of cell cell periphery membrane plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle intracellular anatomical structure intracellular organelle centrosome microtubule organizing center cytoskeleton centriolar satellite intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol cell-cell junction apical junction complex bicellular tight junction tight junction anchoring junction perinuclear region of cytoplasm
C, D	MAGUK p55 subfamily member 5	protein binding binding protein domain specific binding nucleobase-containing compound kinase activity nucleoside monophosphate kinase activity kinase activity transferase activity guanylate kinase activity catalytic activity phosphotransferase activity, phosphate group as acceptor transferase activity, transferring phosphorus-containing groups adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding protein binding binding protein domain specific binding nucleobase-containing compound kinase activity nucleoside monophosphate kinase activity kinase activity transferase activity guanylate kinase activity catalytic activity phosphotransferase activity, phosphate group as acceptor transferase activity, transferring phosphorus-containing groups adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding identical protein binding	developmental process multicellular organismal process cellular developmental process central nervous system neuron development cell development nervous system development generation of neurons central nervous system neuron differentiation multicellular organism development neurogenesis central nervous system development neuron differentiation cell differentiation neuron development anatomical structure development developmental process multicellular organismal process cellular developmental process central nervous system neuron development cell development nervous system development generation of neurons central nervous system neuron differentiation multicellular organism development neurogenesis central nervous system development neuron differentiation cell differentiation neuron development anatomical structure development cellular process system development tissue morphogenesis anatomical structure morphogenesis epithelium development morphogenesis of an epithelium tissue development morphogenesis of an epithelial sheet membrane organization cellular component organization plasma membrane organization cellular component organization or biogenesis endomembrane system organization protein localization localization cellular localization cellular macromolecule localization macromolecule localization cellular response to stimulus cellular response to growth factor stimulus cell surface receptor protein serine/threonine kinase signaling pathway regulation of cellular process response to stimulus signaling cellular response to transforming growth factor beta stimulus regulation of transmembrane receptor protein serine/threonine kinase signaling pathway regulation of signal transduction regulation of transforming growth factor beta receptor signaling pathway cell communication cellular response to endogenous stimulus signal transduction enzyme-linked receptor protein signaling pathway regulation of biological process regulation of signaling cell surface receptor signaling pathway regulation of cellular response to transforming growth factor beta stimulus response to endogenous stimulus regulation of cellular response to growth factor stimulus biological regulation response to transforming growth factor beta regulation of response to stimulus transforming growth factor beta receptor signaling pathway regulation of cell communication response to growth factor transforming growth factor beta receptor superfamily signaling pathway cellular component assembly involved in morphogenesis myelin assembly cellular component biogenesis myelination cellular anatomical entity morphogenesis cellular component assembly axon ensheathment ensheathment of neurons anatomical structure formation involved in morphogenesis protein localization to cell periphery protein localization to plasma membrane localization within membrane protein localization to membrane morphogenesis of embryonic epithelium embryonic morphogenesis establishment or maintenance of cell polarity embryo development establishment or maintenance of polarity of embryonic epithelium head development forebrain development animal organ development brain development pallium development cerebral cortex development telencephalon development biosynthetic process cellular biosynthetic process cellular metabolic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein localization to myelin sheath abaxonal region peripheral nervous system axon ensheathment glial cell development gliogenesis myelination in peripheral nervous system peripheral nervous system myelin maintenance Schwann cell differentiation peripheral nervous system development Schwann cell development glial cell differentiation myelin maintenance establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity establishment or maintenance of apical/basal cell polarity	somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane apical part of cell cell periphery plasma membrane plasma membrane region apical plasma membrane myelin sheath adaxonal region myelin sheath protein-containing complex somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane apical part of cell cell periphery plasma membrane plasma membrane region apical plasma membrane myelin sheath adaxonal region myelin sheath protein-containing complex cell-cell junction adherens junction anchoring junction cell junction membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system compact myelin Schmidt-Lanterman incisure apical junction complex bicellular tight junction tight junction axon cell projection neuron projection plasma membrane bounded cell projection lateral loop

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR004172	L27 domain	Domain
A, B	IPR036034	PDZ superfamily	Homologous Superfamily
A, B	IPR036892	L27 domain superfamily	Homologous Superfamily
A, B	IPR051342	PDZ domain-containing scaffold protein	Family
A, B	IPR001478	PDZ domain	Domain
A, B	IPR015132	L27-2	Domain
C, D	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
C, D	IPR004172	L27 domain	Domain
C, D	IPR014775	L27 domain, C-terminal	Domain
C, D	IPR050716	Membrane-associated guanylate kinase	Family
C, D	IPR015145	L27-N	Domain
C, D	IPR036028	SH3-like domain superfamily	Homologous Superfamily
C, D	IPR020590	Guanylate kinase, conserved site	Conserved Site
C, D	IPR035601	MPP5, SH3 domain	Domain
C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C, D	IPR036034	PDZ superfamily	Homologous Superfamily
C, D	IPR001452	SH3 domain	Domain
C, D	IPR036892	L27 domain superfamily	Homologous Superfamily
C, D	IPR008144	Guanylate kinase-like domain	Domain
C, D	IPR001478	PDZ domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q8NI35	prostate cancer Prostatic Neoplasms spina bifida substance-related disorder colorectal cancer ulcerative colitis drug dependence Duchenne muscular dystrophy limb-girdle muscular dystrophy pancreatic intraductal papillary-mucinous carcinoma psoriasis subependymal giant cell astrocytoma substance dependence cutaneous lupus erythematosus interstitial cystitis prostate cancer Prostatic Neoplasms spina bifida substance-related disorder colorectal cancer ulcerative colitis drug dependence Duchenne muscular dystrophy limb-girdle muscular dystrophy pancreatic intraductal papillary-mucinous carcinoma psoriasis subependymal giant cell astrocytoma substance dependence cutaneous lupus erythematosus interstitial cystitis lung cancer osteosarcoma pancreatic intraductal papillary-mucinous neoplasm sarcoidosis substance abuse tuberculosis interstitial lung disease malignant glioma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia