Annotations: 6AYE

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	3Beta_HSD, Polysacc_synt_2	e6ayeD1	A: alpha bundles	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: 3Beta_HSD, Polysacc_synt_2	ECOD (develop294)
C	3Beta_HSD, Polysacc_synt_2	e6ayeC1	A: alpha bundles	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: 3Beta_HSD, Polysacc_synt_2	ECOD (develop294)
B	3Beta_HSD, Polysacc_synt_2	e6ayeB1	A: alpha bundles	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: 3Beta_HSD, Polysacc_synt_2	ECOD (develop294)
A	3Beta_HSD, Polysacc_synt_2	e6ayeA1	A: alpha bundles	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: 3Beta_HSD, Polysacc_synt_2	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-3	binding lipid binding monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity sodium channel activity binding lipid binding monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity sodium channel activity sodium ion transmembrane transporter activity calcium channel activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity NAADP-sensitive calcium-release channel activity intracellularly gated calcium 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	transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport behavior multicellular organismal process transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport behavior multicellular organismal process locomotory behavior cellular developmental process sensory organ development epidermis development epithelial cell differentiation hair cell differentiation neurogenesis multicellular organism development neuron differentiation cell differentiation inner ear development anatomical structure development system development developmental process mechanoreceptor differentiation epithelium development epidermal cell differentiation ear development animal organ development inner ear auditory receptor cell differentiation nervous system development tissue development inner ear receptor cell differentiation generation of neurons	vacuolar membrane membrane-bounded organelle autophagosome membrane intracellular anatomical structure membrane vacuole intracellular membrane-bounded organelle autophagosome intracellular organelle bounding membrane of organelle cellular anatomical structure organelle cytoplasm organelle membrane vacuolar membrane membrane-bounded organelle autophagosome membrane intracellular anatomical structure membrane vacuole intracellular membrane-bounded organelle autophagosome intracellular organelle bounding membrane of organelle cellular anatomical structure organelle cytoplasm organelle membrane lytic vacuole lytic vacuole membrane lysosomal membrane lysosome endosome membrane early endosome endosome intracellular vesicle early endosome membrane endomembrane system cytoplasmic vesicle membrane cytoplasmic vesicle vesicle membrane vesicle cell periphery plasma membrane late endosome membrane late endosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR039031	Mucolipin	Family
A, B, C, D	IPR049134	Mucolipin, extracytosolic domain	Domain
A, B, C, D	IPR047317	Mucolipin-3, extracytosolic/lumenal domain	Domain
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: Q8TDD5	psoriasis adrenal cortex carcinoma cystic fibrosis invasive ductal breast carcinoma lung cancer medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atopic eczema ductal breast carcinoma in situ large cell medulloblastoma malignant ependymoma mucolipidosis ovarian cancer pituitary cancer psoriasis adrenal cortex carcinoma cystic fibrosis invasive ductal breast carcinoma lung cancer medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atopic eczema ductal breast carcinoma in situ large cell medulloblastoma malignant ependymoma mucolipidosis ovarian cancer pituitary cancer cutaneous lupus erythematosus interstitial cystitis lung adenocarcinoma malignant pancreatic neoplasm non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Transient Receptor Potential (TRP)	TRPML3 ion channel, apo protein at pH 7.4

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.