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4OJ2

The structure of aquaporin

Functional Information from GO Data
ChainGOidnamespacecontents
X0003091biological_processrenal water homeostasis
X0003097biological_processrenal water transport
X0005372molecular_functionwater transmembrane transporter activity
X0005515molecular_functionprotein binding
X0005737cellular_componentcytoplasm
X0005794cellular_componentGolgi apparatus
X0005886cellular_componentplasma membrane
X0006833biological_processwater transport
X0007015biological_processactin filament organization
X0015168molecular_functionglycerol transmembrane transporter activity
X0015250molecular_functionwater channel activity
X0015267molecular_functionchannel activity
X0015793biological_processglycerol transmembrane transport
X0016020cellular_componentmembrane
X0016323cellular_componentbasolateral plasma membrane
X0016324cellular_componentapical plasma membrane
X0030658cellular_componenttransport vesicle membrane
X0030659cellular_componentcytoplasmic vesicle membrane
X0031410cellular_componentcytoplasmic vesicle
X0042631biological_processcellular response to water deprivation
X0048471cellular_componentperinuclear region of cytoplasm
X0051289biological_processprotein homotetramerization
X0055037cellular_componentrecycling endosome
X0055085biological_processtransmembrane transport
X0070062cellular_componentextracellular exosome
X0071280biological_processcellular response to copper ion
X0071288biological_processcellular response to mercury ion
X0072205biological_processmetanephric collecting duct development
X0098576cellular_componentlumenal side of membrane
Functional Information from PROSITE/UniProt
site_idPS00221
Number of Residues9
DetailsMIP MIP family signature. HINPAVTVA
ChainResidueDetails
XHIS66-ALA74

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues79
DetailsTOPO_DOM: Cytoplasmic => ECO:0000305|PubMed:24733887
ChainResidueDetails
XMET1-ARG11
XGLY60-GLY64
XCYS75-ARG85
XTHR149-ASN156
XLEU223-ALA271

site_idSWS_FT_FI2
Number of Residues118
DetailsTRANSMEM: Helical => ECO:0000269|PubMed:24733887, ECO:0007744|PDB:4NEF
ChainResidueDetails
XALA12-LEU32
XVAL41-LEU59
XALA86-ILE107
XGLY128-SER148
XPRO157-ILE176
XTRP202-VAL222

site_idSWS_FT_FI3
Number of Residues36
DetailsTOPO_DOM: Extracellular => ECO:0000305|PubMed:24733887
ChainResidueDetails
XASN33-SER40
XTHR108-ALA127
XHIS177-GLY180
XVAL194-HIS201

site_idSWS_FT_FI4
Number of Residues21
DetailsINTRAMEM: Discontinuously helical => ECO:0000269|PubMed:24733887, ECO:0007744|PDB:4NEF
ChainResidueDetails
XALA65-ALA74
XCYS181-VAL193

site_idSWS_FT_FI5
Number of Residues1
DetailsMOD_RES: Phosphoserine; by PKA => ECO:0000269|PubMed:12194985
ChainResidueDetails
XALA256

site_idSWS_FT_FI6
Number of Residues1
DetailsCARBOHYD: N-linked (GlcNAc...) asparagine => ECO:0000255
ChainResidueDetails
XASN123

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PDB entries from 2025-06-18

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