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5HXE

Structural mechanisms of extracellular ion exchange and induced binding-site occlusion in the sodium-calcium exchanger NCX_Mj soaked with 100 mM Na+ and zero 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 NA A 401
ChainResidue
AILE118
AASP121
AGLY122
AASP127
AHOH527
AHOH545

site_idAC2
Number of Residues5
Detailsbinding site for residue NA A 402
ChainResidue
AGLU213
ASER236
AALA47
ATHR50
ASER51

site_idAC3
Number of Residues4
Detailsbinding site for residue NA A 403
ChainResidue
ATHR50
AGLU54
ATHR209
AGLU213

site_idAC4
Number of Residues5
Detailsbinding site for residue NA A 404
ChainResidue
AGLU54
ASER77
AALA206
ATHR209
ASER210

site_idAC5
Number of Residues2
Detailsbinding site for residue MYS A 406
ChainResidue
AILE120
AALA262

site_idAC6
Number of Residues2
Detailsbinding site for residue MYS A 407
ChainResidue
AVAL36
AVAL143

site_idAC7
Number of Residues3
Detailsbinding site for residue MYS A 408
ChainResidue
ATRP283
AILE286
ALEU287

site_idAC8
Number of Residues3
Detailsbinding site for residue MYS A 409
ChainResidue
ALEU139
AARG140
AMYS412

site_idAC9
Number of Residues4
Detailsbinding site for residue MYS A 410
ChainResidue
AILE91
ATRP125
ALEU132
ALEU250

site_idAD1
Number of Residues2
Detailsbinding site for residue MYS A 411
ChainResidue
ASER298
AMYS412

site_idAD2
Number of Residues4
Detailsbinding site for residue MYS A 412
ChainResidue
AALA297
ASER298
AMYS409
AMYS411

site_idAD3
Number of Residues5
Detailsbinding site for residue OLC A 413
ChainResidue
APHE114
AVAL130
ALEU134
ATRP141
APHE207

site_idAD4
Number of Residues7
Detailsbinding site for residue OLC A 414
ChainResidue
APRO53
ALEU56
ALEU176
AALA179
AGLU180
AGLY208
ATHR209

site_idAD5
Number of Residues7
Detailsbinding site for residue 1PE A 415
ChainResidue
ATYR17
ASER20
AMET215
ALEU218
AALA219
ALYS222
AHOH502

site_idAD6
Number of Residues3
Detailsbinding site for residue CL A 416
ChainResidue
AASN38
ALEU225
AGLY227

site_idAD7
Number of Residues2
Detailsbinding site for residue CL A 417
ChainResidue
AALA66
AGLY68

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues180
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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