Annotations: 6M04

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF12799	e6m04A2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
A	PF12534	e6m04A1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)
B	PF12799	e6m04B2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
B	PF12534	e6m04B1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)
C	PF12799	e6m04C2	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
C	PF12534	e6m04C1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)
D	PF12799	e6m04D1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
D	PF12534	e6m04D2	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)
E	PF12799	e6m04E1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
E	PF12534	e6m04E2	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)
F	PF12799	e6m04F1	A: beta duplicates or obligate multimers	X: Single-stranded right-handed beta-helix	H: Leucine-rich repeats (From Topology)	T: Leucine-rich repeats	F: PF12799	ECOD (1.6)
F	PF12534	e6m04F2	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF12534	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF13855	Leucine rich repeat (LRR_8)	Leucine rich repeat	-	Repeat
A, B, C, D, E A, B, C, D, E, F	PF12534	Pannexin-like TM region of LRRC8 (Pannexin_like)	Pannexin-like TM region of LRRC8	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Volume-regulated anion channel subunit LRRC8D	volume-sensitive anion channel activity monoatomic anion transmembrane transporter activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	cellular homeostasis chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis intracellular chemical homeostasis intracellular glucose homeostasis cellular component organization cellular component biogenesis protein hexamerization cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular homeostasis chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis intracellular chemical homeostasis intracellular glucose homeostasis cellular component organization cellular component biogenesis protein hexamerization cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular process cellular component organization or biogenesis cellular response to stimulus response to osmotic stress response to stimulus cellular response to chemical stress cellular response to osmotic stress cellular response to environmental stimulus cellular response to chemical stimulus cellular response to stress response to stress response to chemical response to abiotic stimulus cellular response to abiotic stimulus organic acid transmembrane transport organic anion transport nitrogen compound transport carboxylic acid transport carboxylic acid transmembrane transport transport aspartate transmembrane transport organic substance transport amino acid transmembrane transport C4-dicarboxylate transport establishment of localization organic acid transport transmembrane transport amino acid transport localization dicarboxylic acid transport monoatomic ion transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport regulation of biological process regulation of cellular process signaling biological regulation signal transduction cell communication taurine transmembrane transport alkanesulfonate transmembrane transport sulfur compound transport	membrane cellular anatomical entity cell periphery plasma membrane intracellular anatomical structure cytoplasm protein-containing complex transmembrane transporter complex membrane protein complex transporter complex monoatomic ion channel complex membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle membrane cellular anatomical entity cell periphery plasma membrane intracellular anatomical structure cytoplasm protein-containing complex transmembrane transporter complex membrane protein complex transporter complex monoatomic ion channel complex membrane-bounded organelle organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR001611	Leucine-rich repeat	Repeat
A, B, C, D, E A, B, C, D, E, F	IPR021040	LRRC8, pannexin-like TM region	Domain
A, B, C, D, E A, B, C, D, E, F	IPR003591	Leucine-rich repeat, typical subtype	Repeat
A, B, C, D, E A, B, C, D, E, F	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E A, B, C, D, E, F	Pharos: Q7L1W4	lung cancer osteosarcoma ovarian cancer

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E A, B, C, D, E, F	OPM	Transmembrane	Alpha-helical polytopic	Tetraspan junctional complexes	Pannexin

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E A, B, C, D, E, F	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	LRRC8D volume-regulated anion channel

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 R01GM133198.