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9E94

Cryo-EM structure of human TWIK-2 at pH 7.5

Functional Information from GO Data
ChainGOidnamespacecontents
A0005242molecular_functioninward rectifier potassium channel activity
A0005267molecular_functionpotassium channel activity
A0005765cellular_componentlysosomal membrane
A0005886cellular_componentplasma membrane
A0006813biological_processpotassium ion transport
A0008076cellular_componentvoltage-gated potassium channel complex
A0015271molecular_functionoutward rectifier potassium channel activity
A0022841molecular_functionpotassium ion leak channel activity
A0031902cellular_componentlate endosome membrane
A0062196biological_processregulation of lysosome size
A0071805biological_processpotassium ion transmembrane transport
A1900227biological_processpositive regulation of NLRP3 inflammasome complex assembly
B0005242molecular_functioninward rectifier potassium channel activity
B0005267molecular_functionpotassium channel activity
B0005765cellular_componentlysosomal membrane
B0005886cellular_componentplasma membrane
B0006813biological_processpotassium ion transport
B0008076cellular_componentvoltage-gated potassium channel complex
B0015271molecular_functionoutward rectifier potassium channel activity
B0022841molecular_functionpotassium ion leak channel activity
B0031902cellular_componentlate endosome membrane
B0062196biological_processregulation of lysosome size
B0071805biological_processpotassium ion transmembrane transport
B1900227biological_processpositive regulation of NLRP3 inflammasome complex assembly
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues160
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues50
DetailsIntramembrane: {"description":"Pore-forming; Name=Pore-forming 1","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues48
DetailsIntramembrane: {"description":"Pore-forming; Name=Pore-forming 2","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 1","evidences":[{"source":"UniProtKB","id":"P57789","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues10
DetailsRegion: {"description":"Selectivity filter 2","evidences":[{"source":"UniProtKB","id":"P57789","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues14
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P57789","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

251422

PDB entries from 2026-04-01

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