MthK N-terminal truncation state 3 bound with calcium
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
| Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
|---|---|---|---|---|---|
| H | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| H | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| G [auth D] | SCOP2B Superfamily | Voltage-gated potassium channels | 8001548 | 3000023 | SCOP2B (2022-06-29) |
| G [auth D] | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| G [auth D] | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| F | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | Voltage-gated potassium channels | 8001548 | 3000023 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| E [auth B] | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| D [auth G] | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| D [auth G] | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| C | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| C | SCOP2B Superfamily | Voltage-gated potassium channels | 8001548 | 3000023 | SCOP2B (2022-06-29) |
| C | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| B [auth E] | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| B [auth E] | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Potassium channel/Rex NAD-binding domain-like | 8057606 | 3000042 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | Voltage-gated potassium channels | 8001548 | 3000023 | SCOP2B (2022-06-29) |
| A | SCOP2B Superfamily | TrkA C-terminal domain-like | 8057608 | 3000037 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
| Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
|---|---|---|---|---|---|---|---|---|
| H | e6uxbH1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| G [auth D] | e6uxbD1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| F | e6uxbF1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| E [auth B] | e6uxbB1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| D [auth G] | e6uxbG1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| C | e6uxbC1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| B [auth E] | e6uxbE1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) | |
| A | e6uxbA1 | A: Family A G protein-coupled receptor-like | X: Family A G protein-coupled receptor-like | H: Family A G protein-coupled receptor-like | T: CBS | F: | ECOD (20:10:01) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF02080 | TrkA-C domain (TrkA_C) | TrkA-C domain | This domain is often found next to the Pfam:PF02254 domain. The exact function of this domain is unknown. It has been suggested that it may bind an unidentified ligand [1]. The domain is predicted to adopt an all beta structure [1]. | Domain | |
| PF02254 | TrkA-N domain (TrkA_N) | TrkA-N domain | This domain is found in a wide variety of proteins. These protein include potassium channels Swiss:P31069, phosphoesterases Swiss:Q59027, and various other transporters. This domain binds to NAD. | Domain | |
| PF07885 | Ion channel (Ion_trans_2) | Ion channel | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
| Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
|---|---|---|---|---|
| Calcium-gated potassium channel MthK |
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR006037 | Regulator of K+ conductance, C-terminal | Domain | |
| IPR050721 | Trk/Ktr/HKT Potassium Transport | Family | |
| IPR013099 | Potassium channel domain | Domain | |
| IPR036291 | NAD(P)-binding domain superfamily | Homologous Superfamily | |
| IPR036721 | Regulator of K+ conductance, C-terminal domain superfamily | Homologous Superfamily | |
| IPR003148 | Regulator of K+ conductance, N-terminal lobe | Domain |
Membrane Protein Annotation: PDBTM PDBTM Database Homepage
| Chains | External Link | Comment |
|---|---|---|
| PDBTM | Annotated as membrane protein by PDBTM |
Membrane Protein Annotation: mpstruc mpstruc Database Homepage
| Chains | Resource Link | Group | Subgroup | Protein |
|---|---|---|---|---|
| mpstruc | TRANSMEMBRANE PROTEINS: ALPHA-HELICAL | Channels: Potassium, Sodium, & Proton Ion-Selective | MthK Potassium channel, Ca++ gated, closed state with EDTA |














