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6UKN

Cryo-EM structure of the potassium-chloride cotransporter KCC4 in lipid nanodiscs

Functional Information from GO Data
ChainGOidnamespacecontents
A0005886cellular_componentplasma membrane
A0006811biological_processmonoatomic ion transport
A0006813biological_processpotassium ion transport
A0006884biological_processcell volume homeostasis
A0007268biological_processchemical synaptic transmission
A0015293molecular_functionsymporter activity
A0015377molecular_functionchloride:monoatomic cation symporter activity
A0015379molecular_functionpotassium:chloride symporter activity
A0016020cellular_componentmembrane
A0019901molecular_functionprotein kinase binding
A0022857molecular_functiontransmembrane transporter activity
A0032991cellular_componentprotein-containing complex
A0045202cellular_componentsynapse
A0046872molecular_functionmetal ion binding
A0055064biological_processchloride ion homeostasis
A0055075biological_processpotassium ion homeostasis
A0055085biological_processtransmembrane transport
A0071333biological_processcellular response to glucose stimulus
A0071805biological_processpotassium ion transmembrane transport
A1902476biological_processchloride transmembrane transport
A1990573biological_processpotassium ion import across plasma membrane
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues22
DetailsTransmembrane: {"description":"Discontinuously helical; Name=1","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues177
DetailsTopological domain: {"description":"Extracellular","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues22
DetailsTransmembrane: {"description":"Helical; Name=2","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues67
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues28
DetailsTransmembrane: {"description":"Helical; Name=3","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues21
DetailsTransmembrane: {"description":"Helical; Name=4","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues28
DetailsTransmembrane: {"description":"Helical; Name=5","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues20
DetailsTransmembrane: {"description":"Helical; Name=6","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues22
DetailsTransmembrane: {"description":"Helical; Name=7","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues26
DetailsTransmembrane: {"description":"Helical; Name=8","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues18
DetailsTransmembrane: {"description":"Helical; Name=9","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues24
DetailsTransmembrane: {"description":"Helical; Name=10","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues22
DetailsTransmembrane: {"description":"Helical; Name=11","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues15
DetailsTransmembrane: {"description":"Helical; Name=12","evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"Q9Y666","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI16
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) (high mannose) asparagine","evidences":[{"source":"PubMed","id":"23376777","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI17
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) (complex) asparagine","evidences":[{"source":"PubMed","id":"19349973","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"19656770","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"23376777","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI18
Number of Residues1
DetailsGlycosylation: {"description":"N-linked (GlcNAc...) (complex) asparagine","evidences":[{"source":"PubMed","id":"23376777","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

249697

PDB entries from 2026-02-25

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