Annotations: 3IYZ

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Aquaporin-like	8072766	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)
A	MIP	e3iyzA1	A: alpha complex topology	X: Aquaporin-like (From Topology)	H: Aquaporin-like (From Topology)	T: Aquaporin-like	F: MIP	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	Aquaporin-4	passive transmembrane transporter activity water transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity transporter activity transmembrane transporter activity water channel activity identical protein binding protein binding binding	multicellular organismal process regulation of body fluid levels secretion by tissue secretion transport biological regulation cerebrospinal fluid secretion establishment of localization localization body fluid secretion regulation of biological quality multi-multicellular organism process reproductive process female pregnancy multicellular organismal process regulation of body fluid levels secretion by tissue secretion transport biological regulation cerebrospinal fluid secretion establishment of localization localization body fluid secretion regulation of biological quality multi-multicellular organism process reproductive process female pregnancy multi-organism reproductive process interleukin-6 production regulation of cellular process cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process regulation of interleukin-6 production organic substance metabolic process regulation of cytokine production organic substance biosynthetic process cytokine production negative regulation of cellular process regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process cellular metabolic process negative regulation of metabolic process regulation of cellular metabolic process negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of interleukin-6 production negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process renal system process system process homeostatic process fluid transport water transport renal water transport multicellular organismal-level homeostasis chemical homeostasis renal absorption multicellular organismal-level water homeostasis multicellular organismal-level chemical homeostasis renal water absorption renal water homeostasis cellular response to stimulus response to organic substance response to stimulus response to monosaccharide response to carbohydrate carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus cellular response to organic substance response to oxygen-containing compound cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis response to glucose response to chemical glucose homeostasis protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis interleukin-1 production regulation of interleukin-1 beta production negative regulation of interleukin-1 beta production negative regulation of interleukin-1 production regulation of interleukin-1 production interleukin-1 beta production regulation of cellular component size cell volume homeostasis intracellular water homeostasis regulation of cell size regulation of anatomical structure size response to corticosteroid response to lipid response to hormone response to steroid hormone response to endogenous stimulus response to glucocorticoid response to organic cyclic compound regulation of cell adhesion molecule production negative regulation of cell adhesion molecule production cell adhesion molecule production cellular localization establishment of localization in cell one-carbon compound transport gas transport organic substance transport carbon dioxide transport nervous system process epithelial cilium movement involved in extracellular fluid movement extracellular transport microtubule-based transport microtubule-based movement microtubule-based process cerebrospinal fluid circulation cilium movement biological process involved in interspecies interaction between organisms response to type II interferon response to cytokine cellular response to type II interferon response to biotic stimulus response to stress innate immune response cellular response to cytokine stimulus response to external biotic stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus immune system process defense response to other organism response to interleukin-6 cellular response to interleukin-6 sensory perception sensory perception of sound sensory perception of mechanical stimulus cellular response to organic cyclic compound cellular response to lipid response to estradiol cellular response to estradiol stimulus cell adhesion cell-cell adhesion regulation of vascular endothelial growth factor production vascular endothelial growth factor production cellular response to interleukin-1 response to interleukin-1	cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity cell surface external side of plasma membrane side of membrane cell-cell junction anchoring junction cell junction basal part of cell basal plasma membrane cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity cell surface external side of plasma membrane side of membrane cell-cell junction anchoring junction cell junction basal part of cell basal plasma membrane plasma membrane region glial cell projection cell projection plasma membrane bounded cell projection astrocyte end-foot astrocyte projection basolateral plasma membrane cell projection membrane intracellular anatomical structure cytoplasm protein-containing complex extracellular region endosome membrane membrane-bounded organelle endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle vesicle organelle membrane

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

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.