Annotations: 8A3B

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
G	Actin	e8a3bG1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
F	Actin	e8a3bF1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
E	Actin	e8a3bE1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
D	Actin	e8a3bD1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
C	Actin	e8a3bC1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
B	Actin	e8a3bB1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)
A	Actin	e8a3bA1	A: alpha bundles	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Actin	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G	PF00876	Innexin (Innexin)	Innexin	-	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, G	Pannexin-1	protein binding binding signaling receptor binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding wide pore channel activity passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity carbohydrate derivative transmembrane transporter activity nucleotide transmembrane transporter activity protein binding binding signaling receptor binding cytoskeletal protein binding actin binding protein-containing complex binding actin filament binding wide pore channel activity passive transmembrane transporter activity channel activity transporter activity transmembrane transporter activity carbohydrate derivative transmembrane transporter activity nucleotide transmembrane transporter activity purine ribonucleotide transmembrane transporter activity nucleobase-containing compound transmembrane transporter activity ATP transmembrane transporter activity adenine nucleotide transmembrane transporter activity organophosphate ester transmembrane transporter activity purine nucleotide transmembrane transporter activity enzyme binding protease binding scaffold protein binding monoatomic anion transmembrane transporter activity monoatomic ion channel activity monoatomic anion channel activity monoatomic ion transmembrane transporter activity narrow pore channel activity leak channel activity transmembrane transporter binding gap junction channel activity structural molecule activity calcium channel activity monoatomic cation transmembrane transporter activity monoatomic cation channel activity calcium ion transmembrane transporter activity metal ion transmembrane transporter activity identical protein binding	multicellular organismal process regulation of cellular process interleukin-1 production positive regulation of biological process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of interleukin-1 alpha production positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of interleukin-1 production positive regulation of macromolecule metabolic process positive regulation of cellular process multicellular organismal process regulation of cellular process interleukin-1 production positive regulation of biological process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of interleukin-1 alpha production positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of interleukin-1 production positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of biological process regulation of interleukin-1 production biological regulation regulation of macromolecule metabolic process gene expression regulation of interleukin-1 alpha production macromolecule biosynthetic process regulation of gene expression interleukin-1 alpha production biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process ATP transport nitrogen compound transport organic anion transport nucleotide transport transport purine ribonucleotide transport carbohydrate derivative transport establishment of localization purine nucleotide transport adenine nucleotide transport localization nucleobase-containing compound transport organophosphate ester transport response to stimulus response to stress response to ischemia signaling cell-cell signaling cell communication transmembrane transport monoatomic ion transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport monoatomic cation transport regulation of interleukin-1 beta production positive regulation of interleukin-1 beta production interleukin-1 beta production response to chemical response to organophosphorus response to oxygen-containing compound response to nitrogen compound response to ATP response to purine-containing compound calcium ion transport metal ion transport	cell-cell junction cellular anatomical structure anchoring junction gap junction cell junction cell periphery plasma membrane membrane protein-containing complex membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system cell-cell junction cellular anatomical structure anchoring junction gap junction cell junction cell periphery plasma membrane membrane protein-containing complex membrane-bounded organelle intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane cell projection bleb plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G	IPR000990	Innexin	Family
A, B, C, D, E A, B, C, D, E, F, G	IPR039099	Pannexin	Family

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, G	OPM	Transmembrane	Alpha-helical polytopic	Tetraspan junctional complexes	Innexin

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G	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, G	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, G	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	Pannexin 1 (Panx1) ATP release channel purified in Salipro nanoparticles

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.