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5HXR

Structural mechanisms of extracellular ion exchange and induced binding-site occlusion in the sodium-calcium exchanger NCX_Mj soaked with 2.5 mM Na+ and 10mM Ca2+

Functional Information from GO Data
ChainGOidnamespacecontents
A0005262molecular_functioncalcium channel activity
A0005886cellular_componentplasma membrane
A0006874biological_processintracellular calcium ion homeostasis
A0008273molecular_functioncalcium, potassium:sodium antiporter activity
A0016020cellular_componentmembrane
A0035725biological_processsodium ion transmembrane transport
A0055085biological_processtransmembrane transport
A0070588biological_processcalcium ion transmembrane transport
A0071805biological_processpotassium ion transmembrane transport
Functional Information from PDB Data
site_idAC1
Number of Residues6
Detailsbinding site for residue CA A 401
ChainResidue
AILE118
AASP121
AGLY122
AASP127
AOLC404
AHOH511

site_idAC2
Number of Residues7
Detailsbinding site for residue CA A 402
ChainResidue
ATHR209
AGLU213
AASP240
AHOH506
ATHR50
ASER51
AGLU54

site_idAC3
Number of Residues5
Detailsbinding site for residue OLC A 403
ChainResidue
AASN38
AASN224
ALEU225
AGLY226
AGLY227

site_idAC4
Number of Residues6
Detailsbinding site for residue OLC A 404
ChainResidue
AILE118
AASP121
AILE126
AASP127
ACA401
AHOH501

site_idAC5
Number of Residues2
Detailsbinding site for residue MYS A 405
ChainResidue
AALA116
AASN258

site_idAC6
Number of Residues1
Detailsbinding site for residue MYS A 406
ChainResidue
AGLN260

site_idAC7
Number of Residues2
Detailsbinding site for residue MYS A 407
ChainResidue
AARG140
AALA297

site_idAC8
Number of Residues2
Detailsbinding site for residue MYS A 408
ChainResidue
AMYS411
AMYS412

site_idAC9
Number of Residues3
Detailsbinding site for residue MYS A 409
ChainResidue
AILE91
ATRP125
AILE293

site_idAD1
Number of Residues4
Detailsbinding site for residue MYS A 410
ChainResidue
AVAL107
APHE114
AILE137
ATYR138

site_idAD2
Number of Residues4
Detailsbinding site for residue MYS A 411
ChainResidue
AVAL263
ALEU291
ASER298
AMYS408

site_idAD3
Number of Residues2
Detailsbinding site for residue MYS A 412
ChainResidue
ALEU270
AMYS408

site_idAD4
Number of Residues2
Detailsbinding site for residue MYS A 413
ChainResidue
APHE114
AVAL117

site_idAD5
Number of Residues5
Detailsbinding site for residue PGE A 414
ChainResidue
ATYR17
AASP21
AMET215
ALEU218
ALYS222

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues180
DetailsTRANSMEM: Helical => ECO:0000255
ChainResidueDetails
AILE3-PHE23
APHE39-ALA59
ASER77-VAL97
ALEU106-ILE126
AGLY128-ALA148
APHE163-VAL183
AVAL199-ALA219
AGLY227-VAL247
ALEU254-PHE274

237992

PDB entries from 2025-06-25

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