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2KS4

NMR structure of the sea anemone actinoporin Sticholysin

Functional Information from GO Data
ChainGOidnamespacecontents
A0005576cellular_componentextracellular region
A0006811biological_processmonoatomic ion transport
A0006812biological_processmonoatomic cation transport
A0015267molecular_functionchannel activity
A0016020cellular_componentmembrane
A0031640biological_processkilling of cells of another organism
A0035821biological_processmodulation of process of another organism
A0042151cellular_componentnematocyst
A0042802molecular_functionidentical protein binding
A0044218cellular_componentother organism cell membrane
A0046930cellular_componentpore complex
A0046931biological_processpore complex assembly
A0051715biological_processcytolysis in another organism
A0055085biological_processtransmembrane transport
A0090729molecular_functiontoxin activity
Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues9
DetailsRegion: {"description":"Plays an important role in the hemolytic activity","evidences":[{"source":"UniProtKB","id":"P07845","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues19
DetailsRegion: {"description":"N-terminal region","evidences":[{"source":"UniProtKB","id":"P61914","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues15
DetailsRegion: {"description":"Trp-rich region, which is important for the binding to lipid membrane","evidences":[{"source":"UniProtKB","id":"P61914","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsMotif: {"description":"Cell attachment site","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues7
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P07845","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsSite: {"description":"Important in the initial contact with the lipid membrane","evidences":[{"source":"UniProtKB","id":"P61914","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsSite: {"description":"Interacts with the lipid membrane","evidences":[{"evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

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PDB entries from 2025-07-16

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