Annotations: 1Y74

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1y74a1	All alpha proteins	L27 domain	L27 domain	L27 domain	Lin-7	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d1y74c_	All alpha proteins	L27 domain	L27 domain	L27 domain	Lin-7	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1y74b_	All alpha proteins	L27 domain	L27 domain	L27 domain	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
D	d1y74d_	All alpha proteins	L27 domain	L27 domain	L27 domain	automated matches	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	8021766	4000688	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	L27 domain	8034146	3001054	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	L27 domain	8034146	3001054	SCOP2B (2022-06-29)
B	SCOP2 Family	L27 domain	8021765	4000688	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	L27 domain	8034145	3001054	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	L27 domain	8034145	3001054	SCOP2B (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	PF02828	e1y74A1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: PF02828	ECOD (1.6)
C	PF02828	e1y74C1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: PF02828	ECOD (1.6)
B	PF02828	e1y74B1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: PF02828	ECOD (1.6)
D	PF02828	e1y74D1	A: alpha duplicates or obligate multimers	X: L27 domain (From Topology)	H: L27 domain (From Topology)	T: L27 domain	F: PF02828	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)
C	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF02828	L27 domain (L27)	L27 domain	The L27 domain is found in receptor targeting proteins Lin-2 and Lin-7.	Domain
B, D	PF02828	L27 domain (L27)	L27 domain	The L27 domain is found in receptor targeting proteins Lin-2 and Lin-7.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	lin 7 homolog b	protein binding binding protein domain specific binding kinase binding enzyme binding protein kinase binding L27 domain binding PDZ domain binding	trans-synaptic signaling regulation of biological process cellular localization neurotransmitter secretion transport signaling secretion biological regulation cell-cell signaling export from cell neurotransmitter transport establishment of localization cell communication chemical synaptic transmission localization trans-synaptic signaling regulation of biological process cellular localization neurotransmitter secretion transport signaling secretion biological regulation cell-cell signaling export from cell neurotransmitter transport establishment of localization cell communication chemical synaptic transmission localization signal release from synapse synaptic signaling secretion by cell signal release anterograde trans-synaptic signaling establishment of localization in cell cellular process protein localization establishment of protein localization nitrogen compound transport organic substance transport protein transport cellular macromolecule localization macromolecule localization exocytosis vesicle-mediated transport establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity maintenance of cell polarity maintenance of epithelial cell apical/basal polarity maintenance of apical/basal cell polarity establishment or maintenance of apical/basal cell polarity establishment or maintenance of cell polarity protein localization to cell periphery localization within membrane protein localization to basolateral plasma membrane protein localization to membrane	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region cell-cell junction adherens junction protein-containing complex anchoring junction plasma membrane protein complex membrane protein complex MPP7-DLG1-LIN7 complex apical junction complex bicellular tight junction tight junction basal part of cell basal plasma membrane basolateral plasma membrane presynapse membrane-bounded organelle intracellular anatomical structure transport vesicle intracellular vesicle transport vesicle membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle cytoplasm vesicle organelle membrane
B, D	Peripheral plasma membrane protein CASK	binding 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 binding 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 protein-containing complex binding protein binding calmodulin binding signaling receptor binding neurexin family protein binding PDZ domain binding protein domain specific binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity protein serine kinase activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine/threonine kinase activity kinase binding protein kinase C binding enzyme binding protein kinase binding	protein localization localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization cellular process localization within membrane protein localization to membrane regulation of biological process cellular response to growth factor stimulus response to stimulus negative regulation of response to stimulus protein localization localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization cellular process localization within membrane protein localization to membrane regulation of biological process cellular response to growth factor stimulus response to stimulus negative regulation of response to stimulus response to endogenous stimulus regulation of cellular response to growth factor stimulus biological regulation negative regulation of biological process negative regulation of cellular response to growth factor stimulus cellular response to endogenous stimulus regulation of response to stimulus response to growth factor wound healing regulation of response to external stimulus negative regulation of wound healing response to external stimulus negative regulation of response to wounding regulation of response to wounding response to stress regulation of response to stress negative regulation of response to external stimulus regulation of wound healing response to wounding regulation of localization regulation of cellular process transport modulation of chemical synaptic transmission signaling cell communication synaptic signaling regulation of secretion by cell secretion by cell signal release establishment of localization in cell trans-synaptic signaling regulation of signaling neurotransmitter secretion regulation of transport secretion regulation of neurotransmitter transport export from cell cell-cell signaling neurotransmitter transport establishment of localization regulation of secretion chemical synaptic transmission signal release from synapse regulation of trans-synaptic signaling regulation of neurotransmitter secretion anterograde trans-synaptic signaling regulation of cell communication regulation of calcium ion import regulation of calcium ion transport positive regulation of calcium ion transport positive regulation of calcium ion import regulation of monoatomic ion transport positive regulation of biological process calcium ion transport metal ion transport positive regulation of transport positive regulation of monoatomic ion transport monoatomic ion transport calcium ion import monoatomic cation transport regulation of metal ion transport negative regulation of cell population proliferation cell population proliferation regulation of keratinocyte proliferation negative regulation of keratinocyte proliferation regulation of cell population proliferation negative regulation of cellular process regulation of epithelial cell proliferation epithelial cell proliferation negative regulation of epithelial cell proliferation keratinocyte proliferation phosphorylation cellular metabolic process phosphate-containing compound metabolic process metabolic process phosphorus metabolic process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process positive regulation of DNA-templated transcription cellular biosynthetic process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process regulated exocytosis synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport vesicle-mediated transport in synapse regulation of regulated secretory pathway regulation of synaptic vesicle exocytosis regulation of vesicle-mediated transport exocytosis regulation of exocytosis positive regulation of dendritic spine morphogenesis multicellular organismal process positive regulation of nervous system development cell projection organization positive regulation of dendritic spine development regulation of cell differentiation regulation of neurogenesis neuron projection development regulation of cell morphogenesis regulation of cell development positive regulation of developmental process multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis cell differentiation regulation of dendrite morphogenesis anatomical structure development regulation of synapse structure or activity positive regulation of cell projection organization dendritic spine morphogenesis synapse organization regulation of biological quality system development developmental process dendritic spine development dendritic spine organization postsynapse organization regulation of cell projection organization positive regulation of cell development regulation of postsynapse organization nervous system development positive regulation of cell morphogenesis generation of neurons regulation of dendrite development positive regulation of multicellular organismal process regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization regulation of developmental process cellular developmental process plasma membrane bounded cell projection morphogenesis cell development regulation of dendritic spine development cell morphogenesis cellular component organization regulation of nervous system development neurogenesis dendrite development positive regulation of neuron projection development positive regulation of cell differentiation positive regulation of neurogenesis regulation of multicellular organismal process cellular component organization or biogenesis regulation of anatomical structure morphogenesis regulation of multicellular organismal development plasma membrane bounded cell projection organization dendrite morphogenesis positive regulation of dendrite morphogenesis cell morphogenesis involved in neuron differentiation anatomical structure morphogenesis regulation of synapse organization cell junction organization neuron development regulation of dendritic spine morphogenesis neuron projection organization regulation of plasma membrane bounded cell projection organization regulation of cell-substrate adhesion regulation of cell adhesion cell-substrate adhesion negative regulation of cell-matrix adhesion negative regulation of cell adhesion cell adhesion cell-matrix adhesion regulation of cell-matrix adhesion negative regulation of cell-substrate adhesion positive regulation of cell communication establishment of protein localization nitrogen compound transport positive regulation of establishment of protein localization positive regulation of insulin secretion regulation of peptide hormone secretion regulation of hormone levels organic substance transport positive regulation of peptide hormone secretion establishment of protein localization to extracellular region protein secretion regulation of protein secretion positive regulation of protein localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion positive regulation of secretion by cell hormone secretion protein localization to extracellular region positive regulation of protein transport peptide secretion positive regulation of hormone secretion positive regulation of secretion amide transport positive regulation of peptide secretion regulation of peptide transport regulation of establishment of protein localization regulation of protein transport positive regulation of protein secretion peptide transport protein transport regulation of cellular localization regulation of insulin secretion peptide hormone secretion hormone transport insulin secretion positive regulation of signaling	membrane cellular anatomical entity cell-cell junction anchoring junction cell junction basement membrane cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix intracellular anatomical structure cytoplasm cytosol presynapse membrane cellular anatomical entity cell-cell junction anchoring junction cell junction basement membrane cell periphery extracellular matrix external encapsulating structure collagen-containing extracellular matrix intracellular anatomical structure cytoplasm cytosol presynapse synapse plasma membrane presynaptic membrane plasma membrane region synaptic membrane basal part of cell basal plasma membrane basolateral plasma membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection perinuclear region of cytoplasm cell body neuronal cell body membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle organelle lumen organelle nuclear periphery nuclear lumen nuclear matrix podocyte foot nucleolus intracellular non-membrane-bounded organelle non-membrane-bounded organelle vesicle protein-containing complex cilium ciliary membrane bounding membrane of organelle organelle membrane cell projection membrane nuclear lamina Schaffer collateral - CA1 synapse apical dendrite

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR004172	L27 domain	Domain
A, C	IPR014775	L27 domain, C-terminal	Domain
A, C	IPR036034	PDZ superfamily	Homologous Superfamily
A, C	IPR036892	L27 domain superfamily	Homologous Superfamily
A, C	IPR001478	PDZ domain	Domain
A, C	IPR017365	Protein lin-7	Family
B, D	IPR036028	SH3-like domain superfamily	Homologous Superfamily
B, D	IPR000719	Protein kinase domain	Domain
B, D	IPR020590	Guanylate kinase, conserved site	Conserved Site
B, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B, D	IPR001452	SH3 domain	Domain
B, D	IPR008144	Guanylate kinase-like domain	Domain
B, D	IPR035473	CASK, SH3 domain	Domain
B, D	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
B, D	IPR004172	L27 domain	Domain
B, D	IPR014775	L27 domain, C-terminal	Domain
B, D	IPR036034	PDZ superfamily	Homologous Superfamily
B, D	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
B, D	IPR036892	L27 domain superfamily	Homologous Superfamily
B, D	IPR001478	PDZ domain	Domain