eF-site ID 1bl8-ABCD PDB Code 1bl8 Chain A, B, C, D click to enlarge Title POTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANS Classification MEMBRANE PROTEIN Compound PROTEIN (POTASSIUM CHANNEL PROTEIN) Source Streptomyces lividans (KCSA_STRLI) Sequence A:  ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITY PRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITS FGLVTAALATWFVGREQ B:  ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITY PRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITS FGLVTAALATWFVGREQ C:  ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITY PRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITS FGLVTAALATWFVGREQ D:  ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITY PRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITS FGLVTAALATWFVGREQ Description Functional site 1) chain A residue 76 type sequence V description FILTER TO SELECT FOR POTASSIUM IONS OVER OTHER MONOVALENT CATIONS. source : SEL 2) chain A residue 77 type sequence G description FILTER TO SELECT FOR POTASSIUM IONS OVER OTHER MONOVALENT CATIONS. source : SEL 3) chain A residue 78 type sequence Y description FILTER TO SELECT FOR POTASSIUM IONS OVER OTHER MONOVALENT CATIONS. source : SEL 4) chain A residue 79 type sequence G description FILTER TO SELECT FOR POTASSIUM IONS OVER OTHER MONOVALENT CATIONS. source : SEL 5) chain A residue 77 type sequence G description BINDING SITE FOR RESIDUE K A 401 source : AC1 6) chain A residue 78 type sequence Y description BINDING SITE FOR RESIDUE K A 401 source : AC1 7) chain B residue 77 type sequence G description BINDING SITE FOR RESIDUE K A 401 source : AC1 8) chain B residue 78 type sequence Y description BINDING SITE FOR RESIDUE K A 401 source : AC1 9) chain C residue 77 type sequence G description BINDING SITE FOR RESIDUE K A 401 source : AC1 10) chain C residue 78 type sequence Y description BINDING SITE FOR RESIDUE K A 401 source : AC1 11) chain D residue 77 type sequence G description BINDING SITE FOR RESIDUE K A 401 source : AC1 12) chain D residue 78 type sequence Y description BINDING SITE FOR RESIDUE K A 401 source : AC1 13) chain A residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 402 source : AC2 14) chain A residue 76 type sequence V description BINDING SITE FOR RESIDUE K A 402 source : AC2 15) chain B residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 402 source : AC2 16) chain B residue 76 type sequence V description BINDING SITE FOR RESIDUE K A 402 source : AC2 17) chain C residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 402 source : AC2 18) chain C residue 76 type sequence V description BINDING SITE FOR RESIDUE K A 402 source : AC2 19) chain D residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 402 source : AC2 20) chain D residue 76 type sequence V description BINDING SITE FOR RESIDUE K A 402 source : AC2 21) chain A residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 403 source : AC3 22) chain B residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 403 source : AC3 23) chain C residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 403 source : AC3 24) chain D residue 75 type sequence T description BINDING SITE FOR RESIDUE K A 403 source : AC3 25) chain A residue 28-50 type TRANSMEM sequence AAGAATVLLVIVLLAGSYLAVLA description Helical source Swiss-Prot : SWS_FT_FI1 26) chain A residue 88-111 type TRANSMEM sequence GRCVAVVVMVAGITSFGLVTAALA description Helical source Swiss-Prot : SWS_FT_FI1 27) chain B residue 28-50 type TRANSMEM sequence AAGAATVLLVIVLLAGSYLAVLA description Helical source Swiss-Prot : SWS_FT_FI1 28) chain B residue 88-111 type TRANSMEM sequence GRCVAVVVMVAGITSFGLVTAALA description Helical source Swiss-Prot : SWS_FT_FI1 29) chain C residue 28-50 type TRANSMEM sequence AAGAATVLLVIVLLAGSYLAVLA description Helical source Swiss-Prot : SWS_FT_FI1 30) chain C residue 88-111 type TRANSMEM sequence GRCVAVVVMVAGITSFGLVTAALA description Helical source Swiss-Prot : SWS_FT_FI1 31) chain D residue 28-50 type TRANSMEM sequence AAGAATVLLVIVLLAGSYLAVLA description Helical source Swiss-Prot : SWS_FT_FI1 32) chain D residue 88-111 type TRANSMEM sequence GRCVAVVVMVAGITSFGLVTAALA description Helical source Swiss-Prot : SWS_FT_FI1 33) chain A residue 51-61 type TOPO_DOM sequence ERGAPGAQLIT description Extracellular source Swiss-Prot : SWS_FT_FI2 34) chain A residue 81-87 type TOPO_DOM sequence LYPVTLW description Extracellular source Swiss-Prot : SWS_FT_FI2 35) chain B residue 51-61 type TOPO_DOM sequence ERGAPGAQLIT description Extracellular source Swiss-Prot : SWS_FT_FI2 36) chain B residue 81-87 type TOPO_DOM sequence LYPVTLW description Extracellular source Swiss-Prot : SWS_FT_FI2 37) chain C residue 51-61 type TOPO_DOM sequence ERGAPGAQLIT description Extracellular source Swiss-Prot : SWS_FT_FI2 38) chain C residue 81-87 type TOPO_DOM sequence LYPVTLW description Extracellular source Swiss-Prot : SWS_FT_FI2 39) chain D residue 51-61 type TOPO_DOM sequence ERGAPGAQLIT description Extracellular source Swiss-Prot : SWS_FT_FI2 40) chain D residue 81-87 type TOPO_DOM sequence LYPVTLW description Extracellular source Swiss-Prot : SWS_FT_FI2 41) chain A residue 62-72 type INTRAMEM sequence YPRALWWSVET description Helical; Pore-forming source Swiss-Prot : SWS_FT_FI3 42) chain B residue 62-72 type INTRAMEM sequence YPRALWWSVET description Helical; Pore-forming source Swiss-Prot : SWS_FT_FI3 43) chain C residue 62-72 type INTRAMEM sequence YPRALWWSVET description Helical; Pore-forming source Swiss-Prot : SWS_FT_FI3 44) chain D residue 62-72 type INTRAMEM sequence YPRALWWSVET description Helical; Pore-forming source Swiss-Prot : SWS_FT_FI3 45) chain A residue 73-80 type INTRAMEM sequence ATTVGYGD description Pore-forming source Swiss-Prot : SWS_FT_FI4 46) chain B residue 73-80 type INTRAMEM sequence ATTVGYGD description Pore-forming source Swiss-Prot : SWS_FT_FI4 47) chain C residue 73-80 type INTRAMEM sequence ATTVGYGD description Pore-forming source Swiss-Prot : SWS_FT_FI4 48) chain D residue 73-80 type INTRAMEM sequence ATTVGYGD description Pore-forming source Swiss-Prot : SWS_FT_FI4

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