1BL8 - JenaLib

Asym./Biol. Unit - manually (Jmol Viewer)

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   POTASSIUM CHANNEL (KCSA) FROM STREPTOMYCES LIVIDANS

Authors :   D. A. Doyle, J. M. Cabral, R. A. Pfuetzner, A. Kuo, J. M. Gulbis, S. L. Cohe B. T. Chait, R. Mackinnon

Date :   23 Jul 98 (Deposition) - 29 Jul 98 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.20

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Potassium Channel, Integral Membrane Protein, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   D. A. Doyle, J. Morais Cabral, R. A. Pfuetzner, A. Kuo, J. M. Gulbis, S. L. Cohen, B. T. Chait, R. Mackinnon
The Structure Of The Potassium Channel: Molecular Basis Of K+ Conduction And Selectivity.
Science V. 280 69 1998
PubMed-ID: 9525859 | Reference-DOI: 10.1126/SCIENCE.280.5360.69

Molecule 1 - PROTEIN (POTASSIUM CHANNEL PROTEIN)
	Chains	:	A, B, C, D
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Gene	:	KCSA
	Expression System Plasmid	:	PQE60
	Expression System Strain	:	XL-1 BLUE
	Expression System Taxid	:	562
	Mutation	:	YES
	Organism Scientific	:	STREPTOMYCES LIVIDANS
	Organism Taxid	:	1916

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (1, 3)

No.	Name	Count	Type	Full Name
1	K	3	Ligand/Ion	POTASSIUM ION

Asymmetric Unit (4, 4)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLY A:77 , TYR A:78 , GLY B:77 , TYR B:78 , GLY C:77 , TYR C:78 , GLY D:77 , TYR D:78	BINDING SITE FOR RESIDUE K A 401
2	AC2	SOFTWARE	THR A:75 , VAL A:76 , K A:403 , THR B:75 , VAL B:76 , THR C:75 , VAL C:76 , THR D:75 , VAL D:76	BINDING SITE FOR RESIDUE K A 402
3	AC3	SOFTWARE	THR A:75 , K A:402 , THR B:75 , THR C:75 , THR D:75	BINDING SITE FOR RESIDUE K A 403
4	SEL	AUTHOR	VAL A:76 , GLY A:77 , TYR A:78 , GLY A:79	FILTER TO SELECT FOR POTASSIUM IONS OVER OTHER MONOVALENT CATIONS.

(no "SS Bond" information available for 1BL8)

(no "Cis Peptide Bond" information available for 1BL8)

(no "SAP(SNP)/Variant" information available for 1BL8)

(no "PROSITE Motif" information available for 1BL8)

(no "Exon" information available for 1BL8)

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:97
 aligned with KCSA_STRLI | P0A334 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:97
                                    32        42        52        62        72        82        92       102       112       
           KCSA_STRLI    23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQ 119
               SCOP domains d1bl8a_ A: Potassium channel protein                                                              SCOP domains
               CATH domains 1bl8A00 A:23-119  [code=1.10.287.70, no name defined]                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------- Transcript
                 1bl8 A  23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITSFGLVTAALATWFVGREQ 119
                                    32        42        52        62        72        82        92       102       112

Chain B from PDB  Type:PROTEIN  Length:97
 aligned with KCSA_STRLI | P0A334 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:97
                                    32        42        52        62        72        82        92       102       112       
           KCSA_STRLI    23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQ 119
               SCOP domains d1bl8b_ B: Potassium channel protein                                                              SCOP domains
               CATH domains 1bl8B00 B:23-119  [code=1.10.287.70, no name defined]                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------- Transcript
                 1bl8 B  23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITSFGLVTAALATWFVGREQ 119
                                    32        42        52        62        72        82        92       102       112

Chain C from PDB  Type:PROTEIN  Length:97
 aligned with KCSA_STRLI | P0A334 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:97
                                    32        42        52        62        72        82        92       102       112       
           KCSA_STRLI    23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQ 119
               SCOP domains d1bl8c_ C: Potassium channel protein                                                              SCOP domains
               CATH domains 1bl8C00 C:23-119  [code=1.10.287.70, no name defined]                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------- Transcript
                 1bl8 C  23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITSFGLVTAALATWFVGREQ 119
                                    32        42        52        62        72        82        92       102       112

Chain D from PDB  Type:PROTEIN  Length:97
 aligned with KCSA_STRLI | P0A334 from UniProtKB/Swiss-Prot  Length:160

    Alignment length:97
                                    32        42        52        62        72        82        92       102       112       
           KCSA_STRLI    23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRLVAVVVMVAGITSFGLVTAALATWFVGREQ 119
               SCOP domains d1bl8d_ D: Potassium channel protein                                                              SCOP domains
               CATH domains 1bl8D00 D:23-119  [code=1.10.287.70, no name defined]                                             CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....hhhhhhhhhhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhh...........hhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------- Transcript
                 1bl8 D  23 ALHWRAAGAATVLLVIVLLAGSYLAVLAERGAPGAQLITYPRALWWSVETATTVGYGDLYPVTLWGRCVAVVVMVAGITSFGLVTAALATWFVGREQ 119
                                    32        42        52        62        72        82        92       102       112

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Membrane and cell surface proteins and peptides (2046)

Fold: Voltage-gated potassium channels (62)

Superfamily: Voltage-gated potassium channels (62)

Family: Voltage-gated potassium channels (61)

Protein domain: Potassium channel protein (37)

Streptomyces coelicolor [TaxId: 1902] (17)

1a	d1bl8a_	A:
1b	d1bl8b_	B:
1c	d1bl8c_	C:
1d	d1bl8d_	D:

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Helix Hairpins (718)

Homologous Superfamily: [code=1.10.287.70, no name defined] (106)

Streptomyces lividans. Organism_taxid: 1916. (3)

1a	1bl8A00	A:23-119
1b	1bl8B00	B:23-119
1c	1bl8C00	C:23-119
1d	1bl8D00	D:23-119

(no "Pfam Domain" information available for 1BL8)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B,C,D (KCSA_STRLI | P0A334)

molecular function
	GO:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	GO:0005249	voltage-gated potassium channel activity	Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
	GO:0006811	ion transport	The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0071805	potassium ion transmembrane transport	A process in which a potassium ion is transported from one side of a membrane to the other.
	GO:0006813	potassium ion transport	The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0006810	transport	The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
	GO:0016021	integral component of membrane	The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
	GO:0016020	membrane	A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
	GO:0005886	plasma membrane	The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
	GO:0008076	voltage-gated potassium channel complex	A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential.

Asymmetric/Biological Unit
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	protein: sticks; potassium: surface [ mono GIF format \| stereo GIF format ]

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Description

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Ligands, Modified Residues, Ions (1, 3)

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SS Bonds (0, 0)

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