4IA4 | pdb_00004ia4

Structure of the spinach aquaporin SoPIP2;1 at pH 6

External Resource: Annotation

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d4ia4d_	Membrane and cell surface proteins and peptides	Aquaporin-like	Aquaporin-like	automated matches	automated matches	Spinach (Spinacia oleracea ) [TaxId: 3562 ],	SCOPe (2.08)
C	d4ia4c_	Membrane and cell surface proteins and peptides	Aquaporin-like	Aquaporin-like	automated matches	automated matches	Spinach (Spinacia oleracea ) [TaxId: 3562 ],	SCOPe (2.08)
B	d4ia4b_	Membrane and cell surface proteins and peptides	Aquaporin-like	Aquaporin-like	automated matches	automated matches	Spinach (Spinacia oleracea ) [TaxId: 3562 ],	SCOPe (2.08)
A	d4ia4a_	Membrane and cell surface proteins and peptides	Aquaporin-like	Aquaporin-like	automated matches	automated matches	Spinach (Spinacia oleracea ) [TaxId: 3562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Aquaporin-like	8072772	3000508	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Aquaporin-like	8072772	3000508	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Aquaporin-like	8072772	3000508	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Aquaporin-like	8072772	3000508	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)
D	MIP	e4ia4D2	A: alpha complex topology	X: Aquaporin-like (From Topology)	H: Aquaporin-like (From Topology)	T: Aquaporin-like	F: MIP	ECOD (1.6)
C	MIP	e4ia4C1	A: alpha complex topology	X: Aquaporin-like (From Topology)	H: Aquaporin-like (From Topology)	T: Aquaporin-like	F: MIP	ECOD (1.6)
B	MIP	e4ia4B2	A: alpha complex topology	X: Aquaporin-like (From Topology)	H: Aquaporin-like (From Topology)	T: Aquaporin-like	F: MIP	ECOD (1.6)
A	MIP	e4ia4A2	A: alpha complex topology	X: Aquaporin-like (From Topology)	H: Aquaporin-like (From Topology)	T: Aquaporin-like	F: MIP	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.20.1080.10	Mainly Alpha	Up-down Bundle	Glycerol uptake facilitator protein	Glycerol uptake facilitator protein.	CATH (4.3.0)
C	1.20.1080.10	Mainly Alpha	Up-down Bundle	Glycerol uptake facilitator protein	Glycerol uptake facilitator protein.	CATH (4.3.0)
B	1.20.1080.10	Mainly Alpha	Up-down Bundle	Glycerol uptake facilitator protein	Glycerol uptake facilitator protein.	CATH (4.3.0)
A	1.20.1080.10	Mainly Alpha	Up-down Bundle	Glycerol uptake facilitator protein	Glycerol uptake facilitator protein.	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00230	Major intrinsic protein (MIP)	Major intrinsic protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Aquaporin	passive transmembrane transporter activity water transmembrane transporter activity channel activity transporter activity transmembrane transporter activity water channel activity identical protein binding protein binding binding	-	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR022357	Major intrinsic protein, conserved site	Conserved Site
A, B, C, D	IPR034294	Aquaporin transporter	Family
A, B, C, D	IPR023271	Aquaporin-like	Homologous Superfamily
A, B, C, D	IPR000425	Major intrinsic protein	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

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.