6L3T

Human Cx31.3/GJC3 connexin hemichannel in the absence of calcium

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Claudin-like	8100196	3002606	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Connexin	e6l3tA1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)
B	Connexin	e6l3tB1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)
C	Connexin	e6l3tC1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)
D	Connexin	e6l3tD1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)
E	Connexin	e6l3tE1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)
F	Connexin	e6l3tF1	A: alpha bundles	X: Connexin 26 (From Topology)	H: Connexin 26 (From Topology)	T: Connexin 26	F: Connexin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)
B	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)
C	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)
D	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)
E	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)
F	1.20.1440.80	Mainly Alpha	Up-down Bundle	de novo design (two linked rop proteins)	Gap junction channel protein cysteine-rich domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	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	Gap junction gamma-3 protein	wide pore channel activity passive transmembrane transporter activity channel activity transporter activity gap junction channel activity transmembrane transporter activity identical protein binding protein binding binding	myelination developmental process multicellular organism development multicellular organismal process axon ensheathment ensheathment of neurons anatomical structure development cellular process nervous system development system development regulation of biological process signaling biological regulation cell-cell signaling myelination developmental process multicellular organism development multicellular organismal process axon ensheathment ensheathment of neurons anatomical structure development cellular process nervous system development system development regulation of biological process signaling biological regulation cell-cell signaling cell communication system process sensory perception nervous system process sensory perception of sound sensory perception of mechanical stimulus	cell-cell junction protein-containing complex anchoring junction plasma membrane protein complex gap junction membrane plasma membrane membrane protein complex cell periphery cellular anatomical structure cell junction connexin complex myelin sheath

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR038359	Connexin, N-terminal domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR019570	Gap junction protein, cysteine-rich domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR000500	Connexin	Family
A, B, C, D, E A, B, C, D, E, F	IPR017990	Connexin, conserved site	Conserved Site
A, B, C, D, E A, B, C, D, E, F	IPR013092	Connexin, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E A, B, C, D, E, F	Pharos: Q8NFK1	breast cancer psoriasis cataract interstitial lung disease

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	Connexin

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: Gap Junctions and Related Channels	Cx31.3/GJC3 connexin hemichannel, in the absence of calcium

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.