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4U4V

Structure of a nitrate/nitrite antiporter NarK in apo inward-open state

Functional Information from GO Data
ChainGOidnamespacecontents
A0005452molecular_functionsolute:inorganic anion antiporter activity
A0005886cellular_componentplasma membrane
A0015112molecular_functionnitrate transmembrane transporter activity
A0015113molecular_functionnitrite transmembrane transporter activity
A0015291molecular_functionsecondary active transmembrane transporter activity
A0015706biological_processnitrate transmembrane transport
A0015707biological_processnitrite transport
A0016020cellular_componentmembrane
A0022857molecular_functiontransmembrane transporter activity
A0042128biological_processnitrate assimilation
A0043602biological_processnitrate catabolic process
A0055085biological_processtransmembrane transport
Functional Information from PDB Data
site_idAC1
Number of Residues1
Detailsbinding site for residue OLA A 501
ChainResidue
ASER131

site_idAC2
Number of Residues1
Detailsbinding site for residue OLA A 502
ChainResidue
AGLN292

site_idAC3
Number of Residues1
Detailsbinding site for residue OLA A 504
ChainResidue
APHE121

site_idAC4
Number of Residues1
Detailsbinding site for residue OLA A 506
ChainResidue
ATRP217

site_idAC5
Number of Residues3
Detailsbinding site for residue NI A 507
ChainResidue
AHIS255
AHIS460
AHOH621

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues262
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U4V","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues55
DetailsTopological domain: {"description":"Periplasmic","evidences":[{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U4V","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues54
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U4V","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues4
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"15919996","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U4V","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"23665960","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4JRE","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"4U4W","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4U4T","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsSite: {"description":"Important for activity","evidences":[{"source":"PubMed","id":"23665960","evidenceCode":"ECO:0000305"},{"source":"PubMed","id":"25959928","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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