Annotations: 6E7P

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	SH2	e6e7pA1	A: alpha bundles	X: PriB N-terminal domain-like	H: HTH	T: SH3	F: SH2	ECOD (develop294)
D	SH2	e6e7pD1	A: alpha bundles	X: PriB N-terminal domain-like	H: HTH	T: SH3	F: SH2	ECOD (develop294)
C	SH2	e6e7pC1	A: alpha bundles	X: PriB N-terminal domain-like	H: HTH	T: SH3	F: SH2	ECOD (develop294)
B	SH2	e6e7pB1	A: alpha bundles	X: PriB N-terminal domain-like	H: HTH	T: SH3	F: SH2	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF08016	Polycystin cation channel (PKD_channel)	Polycystin cation channel	-	Family
A, B, C, D	PF21381	Mucolipin, extracytosolic domain (MCLN_ECD)	Mucolipin, extracytosolic domain	Mucolipins 1-3 are ion channel proteins that belong to the transient receptor potential (TRP) superfamily of cation channels and are the major Ca2+-permeable channels on late endosomes and lysosomes (LEL). This entry represents the extracytosolic dom ...	Mucolipins 1-3 are ion channel proteins that belong to the transient receptor potential (TRP) superfamily of cation channels and are the major Ca2+-permeable channels on late endosomes and lysosomes (LEL). This entry represents the extracytosolic domain (ECD) which consists of two beta sheets and two extracytosolic helices that tetramerize into a ring that caps the extracytosolic side of the channel [1-5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Mucolipin-1	monoatomic cation transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity metal ion transmembrane transporter activity calcium channel activity gated channel activity ligand-gated channel activity monoatomic cation transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity potassium ion transmembrane transporter activity potassium channel activity metal ion transmembrane transporter activity calcium channel activity gated channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity calcium ion transmembrane transporter activity ligand-gated calcium channel activity ligand-gated monoatomic cation channel activity monoatomic anion transmembrane transporter activity monoatomic anion channel activity iron ion transmembrane transporter activity transition metal ion transmembrane transporter activity binding lipid binding sodium channel activity sodium ion transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity NAADP-sensitive calcium-release channel activity intracellularly gated calcium channel activity intracellularly phosphatidylinositol-3,5-bisphosphate-gated monatomic cation channel activity identical protein binding protein binding	response to stimulus immune response immune system process adaptive immune response cellular component disassembly catabolic process protein-containing complex organization macroautophagy autophagy protein-containing complex disassembly cellular component organization autophagosome maturation cellular process metabolic process response to stimulus immune response immune system process adaptive immune response cellular component disassembly catabolic process protein-containing complex organization macroautophagy autophagy protein-containing complex disassembly cellular component organization autophagosome maturation cellular process metabolic process cellular component organization or biogenesis process utilizing autophagic mechanism protein homotetramerization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular response to stimulus response to pH cellular response to pH response to abiotic stimulus cellular response to abiotic stimulus cellular response to environmental stimulus organelle organization phagosome maturation localization transport monoatomic ion transport monoatomic cation transport establishment of localization cellular response to metal ion cellular response to chemical stimulus response to metal ion response to chemical cellular response to calcium ion response to calcium ion inorganic ion homeostasis cellular homeostasis chemical homeostasis homeostatic process intracellular monoatomic cation homeostasis intracellular zinc ion homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis monoatomic ion transmembrane transport calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport calcium ion transmembrane transport calcium ion transmembrane import into cytosol release of sequestered calcium ion into cytosol iron ion transport iron ion transmembrane transport transition metal ion transport calcium ion export positive regulation of organelle organization regulation of biological process regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization vacuole organization lytic vacuole organization positive regulation of vacuole organization biological regulation positive regulation of biological process regulation of vacuole organization regulation of organelle organization lysosome organization regulation of lysosome organization positive regulation of lysosome organization positive regulation of cellular process establishment of protein localization protein transport macromolecule localization transferrin transport intracellular protein localization	cellular anatomical structure membrane cell periphery plasma membrane membrane-bounded organelle endosome membrane intracellular anatomical structure endosome intracellular vesicle late endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane cellular anatomical structure membrane cell periphery plasma membrane membrane-bounded organelle endosome membrane intracellular anatomical structure endosome intracellular vesicle late endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle late endosome cytoplasm vesicle organelle membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen lytic vacuole vacuole lysosome protein-containing complex receptor complex phagocytic vesicle phagocytic vesicle membrane endocytic vesicle membrane endocytic vesicle vacuolar membrane lytic vacuole membrane lysosomal membrane Golgi apparatus phagocytic cup

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR047316	Mucolipin-1, extracytosolic/lumenal domain	Domain
A, B, C, D	IPR049134	Mucolipin, extracytosolic domain	Domain
A, B, C, D	IPR039031	Mucolipin	Family
A, B, C, D	IPR013122	Polycystin cation channel, PKD1/PKD2	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: Q9GZU1	mucolipidosis type IV sialidosis type 2 lysosomal storage disease gangliosidosis intellectual disability Malignant neoplasm of breast leukodystrophy mucolipidosis inborn errors of metabolism mucolipidosis type II sialidosis type 1

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Polycystin cation channel

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D	MemProtMD	Annotated as membrane protein by MemProtMD

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.