Annotations: 7XKK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00029	e7xkkA1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
B	PF00029	e7xkkB1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
C	PF00029	e7xkkC1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
D	PF00029	e7xkkD1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
E	PF00029	e7xkkE1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
F	PF00029	e7xkkF1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
G	PF00029	e7xkkG1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
H	PF00029	e7xkkH1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
I	PF00029	e7xkkI1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
J	PF00029	e7xkkJ1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
K	PF00029	e7xkkK1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	ECOD (1.6)
L	PF00029	e7xkkL1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: PF00029	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, G, H, I, J, K, L	PF00029	Connexin (Connexin)	Connexin	Connexin proteins form gap-junctions between cells. They carry four transmembrane regions, hence why this family now includes Connexin_CCC, which represented the second pair of TMs.	Domain

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, H, I, J, K, L	Gap junction delta-2 protein	wide pore channel activity passive transmembrane transporter activity channel activity transporter activity gap junction channel activity transmembrane transporter activity	multicellular organismal process system process nervous system process biological regulation action potential transmission of nerve impulse cell communication neuronal action potential cellular process regulation of biological quality regulation of membrane potential trans-synaptic signaling synaptic signaling regulation of biological process multicellular organismal process system process nervous system process biological regulation action potential transmission of nerve impulse cell communication neuronal action potential cellular process regulation of biological quality regulation of membrane potential trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission sensory perception of light stimulus sensory perception visual perception	cell-cell junction protein-containing complex anchoring junction plasma membrane protein complex gap junction membrane plasma membrane membrane protein complex cellular anatomical entity cell periphery cell junction connexin complex synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR038359	Connexin, N-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR000500	Connexin	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR013092	Connexin, N-terminal	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR002260	Gap junction delta-2 protein (Cx36)	Family
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR019570	Gap junction protein, cysteine-rich domain	Domain
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	IPR017990	Connexin, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	Pharos: Q9UKL4	myopia Ametropia lung carcinoma osteosarcoma refractive error facioscapulohumeral muscular dystrophy malignant glioma ovarian cancer large cell medulloblastoma psoriasis schizophrenia

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, H, I, J, K, L	OPM	Transmembrane	Alpha-helical polytopic	Tetraspan junctional complexes	Connexin

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L	PDBTM	Annotated as membrane protein by PDBTM

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, H, I, J, K, L	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Gap Junctions and Related Channels	Connexin 36 (Cx36; GJD2) gap junction channel in detergents

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.