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5EIK

Structure of a Trimeric Intracellular Cation channel from C. elegans in the absence of Ca2+

Functional Information from GO Data
ChainGOidnamespacecontents
A0005267molecular_functionpotassium channel activity
A0016020cellular_componentmembrane
A0042802molecular_functionidentical protein binding
A0071805biological_processpotassium ion transmembrane transport
Functional Information from PDB Data
site_idAC1
Number of Residues13
Detailsbinding site for residue PT5 A 301
ChainResidue
ALEU64
AACT304
ADMU312
AHOH418
AHOH428
ALEU68
AILE85
ALYS130
AARG134
AALA165
ASER167
AGLY168
ATHR195

site_idAC2
Number of Residues4
Detailsbinding site for residue CPL A 302
ChainResidue
ATYR103
ATYR107
AARG115
ADMU309

site_idAC3
Number of Residues4
Detailsbinding site for residue MG A 303
ChainResidue
AHIS136
AHOH461
AHOH463
AHOH480

site_idAC4
Number of Residues3
Detailsbinding site for residue ACT A 304
ChainResidue
ALYS171
APT5301
AACT305

site_idAC5
Number of Residues4
Detailsbinding site for residue ACT A 305
ChainResidue
ASER42
AHIS45
AASP46
AACT304

site_idAC6
Number of Residues2
Detailsbinding site for residue ACT A 306
ChainResidue
AHOH426
AHOH445

site_idAC7
Number of Residues2
Detailsbinding site for residue ACT A 307
ChainResidue
ATYR28
AALA93

site_idAC8
Number of Residues4
Detailsbinding site for residue ACT A 308
ChainResidue
ALEU41
ATHR118
AHOH434
AHOH435

site_idAC9
Number of Residues4
Detailsbinding site for residue DMU A 309
ChainResidue
ATYR28
ALEU96
ACPL302
AHOH410

site_idAD1
Number of Residues6
Detailsbinding site for residue DMU A 311
ChainResidue
ATYR30
AARG115
ALEU116
AALA117
ATRP119
AHOH408

site_idAD2
Number of Residues12
Detailsbinding site for residue DMU A 312
ChainResidue
APHE54
AHIS58
APHE60
ASER61
ATRP63
ALEU64
ALEU158
AALA177
ATHR195
ALYS196
AVAL199
APT5301

site_idAD3
Number of Residues12
Detailsbinding site for Poly-Saccharide residues TYR A 21 through DMU A 310
ChainResidue
AASP17
AALA18
AGLY19
AGLY20
AVAL22
AGLN23
ALYS24
ALEU25
ALYS26
ATYR30
APHE31
AGLY125

Functional Information from PROSITE/UniProt
site_idPS00626
Number of Residues11
DetailsRCC1_2 Regulator of chromosome condensation (RCC1) signature 2. IAAGvKHAVRI
ChainResidueDetails
AILE138-ILE148

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues19
DetailsTransmembrane: {"description":"Helical;Name=1","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues30
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues24
DetailsTransmembrane: {"description":"Discontinuously helical;Name=2","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues13
DetailsTopological domain: {"description":"Lumenal","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues17
DetailsTransmembrane: {"description":"Helical;Name=3","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues30
DetailsTransmembrane: {"description":"Helical;Name=4","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues26
DetailsTransmembrane: {"description":"Discontinuously helical;Name=5","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues17
DetailsTransmembrane: {"description":"Helical;Name=6","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues22
DetailsTransmembrane: {"description":"Helical;Name=7","evidences":[{"source":"PubMed","id":"27698420","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PDB","id":"5EIK","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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