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5JDQ

Structural mechanisms of extracellular ion exchange and induced binding-site occlusion in the sodium-calcium exchanger NCX_Mj soaked with 100 mM Na+ and 10mM Sr2+

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 Residues5
Detailsbinding site for residue NA A 401
ChainResidue
AALA47
ATHR50
ASER51
AGLU213
ASER236

site_idAC2
Number of Residues4
Detailsbinding site for residue NA A 402
ChainResidue
ATHR50
AGLU54
ATHR209
AGLU213

site_idAC3
Number of Residues5
Detailsbinding site for residue NA A 403
ChainResidue
AGLU54
ASER77
AALA206
ATHR209
ASER210

site_idAC4
Number of Residues6
Detailsbinding site for residue SR A 404
ChainResidue
AILE118
AASP121
AGLY122
AASP127
AOLC407
AHOH517

site_idAC5
Number of Residues2
Detailsbinding site for residue CL A 405
ChainResidue
AASN38
AGLY227

site_idAC6
Number of Residues2
Detailsbinding site for residue CL A 406
ChainResidue
AALA66
AGLY68

site_idAC7
Number of Residues6
Detailsbinding site for residue OLC A 407
ChainResidue
APHE114
AVAL117
AILE118
AASP121
AASP127
ASR404

site_idAC8
Number of Residues4
Detailsbinding site for residue OLC A 408
ChainResidue
ALEU56
ALEU176
AALA179
AGLU180

site_idAC9
Number of Residues4
Detailsbinding site for residue MYS A 410
ChainResidue
AILE91
ATRP125
AARG282
AILE286

site_idAD1
Number of Residues4
Detailsbinding site for residue MYS A 411
ChainResidue
AVAL259
AILE266
ALEU291
ASER298

site_idAD2
Number of Residues6
Detailsbinding site for residue MYS A 413
ChainResidue
AVAL130
AILE133
ATHR203
ALEU204
APHE207
ATYR292

site_idAD3
Number of Residues5
Detailsbinding site for residue 1PE A 414
ChainResidue
ATYR17
ASER20
AMET215
AALA219
ALYS222

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

246905

PDB entries from 2025-12-31

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