4WIS

Crystal structure of the lipid scramblase nhTMEM16 in crystal form 1

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4wisa2	Alpha and beta proteins (a+b)	Ferredoxin-like	Cytosolic domain of anoctamin channel-like	Cytosolic domain of anoctamin channels	Calcium-activated lipid scramblase	(Fusarium vanettenii 77-13-4 ) [TaxId: 660122 ],	SCOPe (2.08)
A	d4wisa1	Membrane and cell surface proteins and peptides	Anoctamin (TMEM16)-like	Anoctamin (TMEM16)-like	Anoctamin (TMEM16)	Calcium-activated lipid scramblase	(Fusarium vanettenii 77-13-4 ) [TaxId: 660122 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Anoctamin-like	8046107	4004881	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Anoctamin-like	8092889	3002639	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Anoctamin-like	8092889	3002639	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	PF04547	e4wisA2	A: alpha bundles	X: TMEM16 lipid scramblase transmembrane domain (From Topology)	H: TMEM16 lipid scramblase transmembrane domain (From Topology)	T: TMEM16 lipid scramblase transmembrane domain	F: PF04547	ECOD (1.6)
A	PF20877	e4wisA1	A: a+b two layers	X: Alpha-beta plaits	H: Alpha-beta plait domain in TMEM16 lipid scramblase (From Topology)	T: Alpha-beta plait domain in TMEM16 lipid scramblase	F: PF20877	ECOD (1.6)
B	PF04547	e4wisB2	A: alpha bundles	X: TMEM16 lipid scramblase transmembrane domain (From Topology)	H: TMEM16 lipid scramblase transmembrane domain (From Topology)	T: TMEM16 lipid scramblase transmembrane domain	F: PF04547	ECOD (1.6)
B	PF20877	e4wisB1	A: a+b two layers	X: Alpha-beta plaits	H: Alpha-beta plait domain in TMEM16 lipid scramblase (From Topology)	T: Alpha-beta plait domain in TMEM16 lipid scramblase	F: PF20877	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF20877	Alpha-beta plait domain in TMEM16 lipid scramblase (Anoctamin_N)	Alpha-beta plait domain in TMEM16 lipid scramblase	This entry represents an alpha-beta plait domain from the TMEM16 family of proteins, also known as anoctamins. Proteins in this family operate as Ca2+-activated lipid scramblases, although the precise function of this domain is uncertain.	Domain
A, B	PF04547	Calcium-activated chloride channel (Anoctamin)	Calcium-activated chloride channel	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	lipid scramblase	cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding	-	membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007632	Anoctamin	Family
A, B	IPR049452	Anoctamin, transmembrane domain	Domain
A, B	IPR049456	Anoctamin, alpha-beta plait domain, fungal-type	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	Calcium-activated chloride channel	Anoctamin (TMEM16) family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	TMEM16 Family Proteins	TMEM16 Ca²⁺-activated lipid scramblase, crystal form 1

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.