8XQ6
Structure of the sea urchin spSLC9C1 in state-3 w/o cAMP protomer
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005216 | molecular_function | monoatomic ion channel activity |
| A | 0005886 | cellular_component | plasma membrane |
| A | 0006811 | biological_process | monoatomic ion transport |
| A | 0006812 | biological_process | monoatomic cation transport |
| A | 0006814 | biological_process | sodium ion transport |
| A | 0007338 | biological_process | single fertilization |
| A | 0015297 | molecular_function | antiporter activity |
| A | 0015385 | molecular_function | sodium:proton antiporter activity |
| A | 0015386 | molecular_function | potassium:proton antiporter activity |
| A | 0016020 | cellular_component | membrane |
| A | 0030552 | molecular_function | cAMP binding |
| A | 0030553 | molecular_function | cGMP binding |
| A | 0031514 | cellular_component | motile cilium |
| A | 0036126 | cellular_component | sperm flagellum |
| A | 0042803 | molecular_function | protein homodimerization activity |
| A | 0051453 | biological_process | regulation of intracellular pH |
| A | 0055085 | biological_process | transmembrane transport |
| A | 0061827 | cellular_component | sperm head |
| A | 0071805 | biological_process | potassium ion transmembrane transport |
| A | 0098719 | biological_process | sodium ion import across plasma membrane |
| A | 1902600 | biological_process | proton transmembrane transport |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 19 |
| Details | Transmembrane: {"description":"Helical; Name=TM1","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 36 |
| Details | Topological domain: {"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 17 |
| Details | Transmembrane: {"description":"Helical; Name=TM2","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 39 |
| Details | Topological domain: {"description":"Extracellular","evidences":[{"evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 16 |
| Details | Transmembrane: {"description":"Helical; Name=TM3","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 25 |
| Details | Transmembrane: {"description":"Helical; Name=TM4","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI7 |
| Number of Residues | 25 |
| Details | Transmembrane: {"description":"Helical; Name=TM5","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI8 |
| Number of Residues | 25 |
| Details | Transmembrane: {"description":"Helical; Name=TM6","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI9 |
| Number of Residues | 31 |
| Details | Transmembrane: {"description":"Helical; Name=TM7, linker","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI10 |
| Number of Residues | 22 |
| Details | Transmembrane: {"description":"Helical; Name=TM8","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI11 |
| Number of Residues | 13 |
| Details | Transmembrane: {"description":"Helical; Name=TM9","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI12 |
| Number of Residues | 33 |
| Details | Transmembrane: {"description":"Helical; Name=TM10","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI13 |
| Number of Residues | 29 |
| Details | Transmembrane: {"description":"Helical; Name=TM11","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI14 |
| Number of Residues | 27 |
| Details | Transmembrane: {"description":"Helical; Name=TM12","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI15 |
| Number of Residues | 30 |
| Details | Transmembrane: {"description":"Helical; Name=TM13","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI16 |
| Number of Residues | 23 |
| Details | Transmembrane: {"description":"Helical; Name=S3","evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI17 |
| Number of Residues | 185 |
| Details | Region: {"description":"Transport core domain","evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI18 |
| Number of Residues | 104 |
| Details | Region: {"description":"Interacts with the S4 segment of voltage sensor domain","evidences":[{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI19 |
| Number of Residues | 15 |
| Details | Region: {"description":"Interacts with the transport core domain; can lock the transporter in the inward conformation","evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI20 |
| Number of Residues | 1 |
| Details | Motif: {"description":"Essential for sodium:proton exchange","evidences":[{"evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"30022052","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000303"},{"source":"PubMed","id":"37880360","evidenceCode":"ECO:0000305"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI21 |
| Number of Residues | 2 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8PDV","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI22 |
| Number of Residues | 1 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8PDU","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI23 |
| Number of Residues | 1 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8PD9","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI24 |
| Number of Residues | 2 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"37880361","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8PDU","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8PDV","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI25 |
| Number of Residues | 1 |
| Details | Site: {"description":"Contributes one equivalent gating charge","evidences":[{"source":"PubMed","id":"30022052","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |






