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(-) Description

Title :  POTASSIUM CHANNEL FROM BURKHOLDERIA PSEUDOMALLEI
 
Authors :  O. B. Clarke, A. T. Caputo, A. P. Hill, J. I. Vandenberg, B. J. Smith, J. M
Date :  24 Jun 09  (Deposition) - 09 Jun 10  (Release) - 30 Jan 13  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.65
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Transmembrane Helices, Ion Conduction, Immunoglobulin Fold, Cytosolic Assembly, Metal Transport, Kirbac, K+ Channel, Kir Channel, Ionic Channel, Inward Rectifier, Potassium Channel (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  O. B. Clarke, A. T. Caputo, A. P. Hill, J. I. Vandenberg, B. J. Smith, J. M. Gulbis
Domain Reorientation And Rotation Of An Intracellular Assembly Regulate Conduction In Kir Potassium Channels.
Cell(Cambridge, Mass. ) V. 141 1018 2010
PubMed-ID: 20564790  |  Reference-DOI: 10.1016/J.CELL.2010.05.003

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-30A
    Expression System Strain: BL21STAR(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CHROMOSOME 1 KIRBAC1.1
    Organism Scientific: BURKHOLDERIA PSEUDOMALLEI
    Organism Taxid: 28450
    Synonym: KIRBAC1.1
 
Molecule 2 - POTASSIUM CHANNEL
    Chains: B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-30A
    Expression System Strain: BL21STAR(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CHROMOSOME 1 KIRBAC1.1
    Organism Scientific: BURKHOLDERIA PSEUDOMALLEI
    Organism Taxid: 28450
    Synonym: KIRBAC1.1

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (2x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 7)

Asymmetric Unit (3, 7)
No.NameCountTypeFull Name
1K2Ligand/IonPOTASSIUM ION
2MG3Ligand/IonMAGNESIUM ION
3PLC2Ligand/IonDIUNDECYL PHOSPHATIDYL CHOLINE
Biological Unit 1 (1, 4)
No.NameCountTypeFull Name
1K-1Ligand/IonPOTASSIUM ION
2MG-1Ligand/IonMAGNESIUM ION
3PLC4Ligand/IonDIUNDECYL PHOSPHATIDYL CHOLINE

(-) Sites  (7, 7)

Asymmetric Unit (7, 7)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:112 , TYR A:113 , GLY B:112 , TYR B:113 , K B:1311BINDING SITE FOR RESIDUE K B1310
2AC2SOFTWAREVAL A:111 , GLY A:112 , VAL B:111 , GLY B:112 , K B:1310BINDING SITE FOR RESIDUE K B1311
3AC3SOFTWARETHR A:110 , THR B:110 , VAL B:111BINDING SITE FOR RESIDUE MG A1310
4AC4SOFTWAREMG A:1311 , ASN B:91BINDING SITE FOR RESIDUE MG B1312
5AC5SOFTWARETRP A:60 , PRO A:61 , ARG A:153 , TRP B:48 , ARG B:49BINDING SITE FOR RESIDUE PLC B1313
6AC6SOFTWARETRP A:48 , ARG A:49 , TRP B:60 , PRO B:61 , ARG B:153BINDING SITE FOR RESIDUE PLC B1314
7AC7SOFTWAREASN A:91 , MG B:1312BINDING SITE FOR RESIDUE MG A1311

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2WLL)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Ser A:93 -Pro A:94
2Ser B:93 -Pro B:94

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2WLL)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2WLL)

(-) Exons   (0, 0)

(no "Exon" information available for 2WLL)

(-) Sequences/Alignments

Asymmetric 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:264
 aligned with P83698_BURPE | P83698 from UniProtKB/TrEMBL  Length:333

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
         P83698_BURPE     1 MNVDPFSPHSSDSFAQAASPARKPPRGGRRIWSGTREVIAYGMPASVWRDLYYWALKVSWPVFFASLAALFVVNNTLFALLYQLGDAPIANQSPPGFVGAFFFSVETLATVGYGDMHPQTVYAHAIATLEIFVGMSGIALSTGLVFARFARPRAKIMFARHAIVRPFNGRMTLMVRAANARQNVIAEARAKMRLMRREHSSEGYSLMKIHDLKLVRNEHPIFLLGWNMMHVIDESSPLFGETPESLAEGRAMLLVMIEGSDETTAQVMQARHAWEHDDIRWHHRYVDLMSDVDGMTHIDYTRFNDTEPV 309
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----                                 -------2wllA01 A:45-152  [code=1.10.287.70, no name defined]                                                       2wllA02 A:153-309 G protein-activated inward re      ctifier potassium channel 1                                                                              CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....---------------------------------..ee....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eee...eeeeee..eeeeeeeeee.....eeeeeeeeeeeee..------.eeeee......ee......eeeeee..........hhhhhhh...eeeeeeeeee.....eeeeeeeee...eee........------...hhhhh...... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2wll A   1 MNVD---------------------------------VIAYGMPASVWRDLYYWALKVSWPVFFASLAALFVVNNTLFALLYQLGDAPIANQSPPGFVGAFFFSVETLATVGYGDMHPQTVYAHAIATLEIFVGMSGIALSTGLVFARFARPRAKIMFARHAIVRPFNGRMTLMVRAANARQNVIAEARAKMRLMRRRE------LMKLHDLKLVRNEHPIFLLGWNMMHVIDESSPLFGETPESLAEGRAMLLVMIEGSDETTAQVMQARHAWEHDDIRWHHRYVDLM------THIDYTRFNDTEPV 309
                               |     -         -         -       |40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190        |-     | 210       220       230       240       250       260       270       280        |-     | 300         
                               4                                38                                                                                                                                                              199    206                                                                                289    296             


Chain B from PDB  Type:PROTEIN  Length:266
 aligned with P83698_BURPE | P83698 from UniProtKB/TrEMBL  Length:333

    Alignment length:309
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300         
         P83698_BURPE     1 MNVDPFSPHSSDSFAQAASPARKPPRGGRRIWSGTREVIAYGMPASVWRDLYYWALKVSWPVFFASLAALFVVNNTLFALLYQLGDAPIANQSPPGFVGAFFFSVETLATVGYGDMHPQTVYAHAIATLEIFVGMSGIALSTGLVFARFARPRAKIMFARHAIVRPFNGRMTLMVRAANARQNVIAEARAKMRLMRREHSSEGYSLMKIHDLKLVRNEHPIFLLGWNMMHVIDESSPLFGETPESLAEGRAMLLVMIEGSDETTAQVMQARHAWEHDDIRWHHRYVDLMSDVDGMTHIDYTRFNDTEPV 309
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---                                  -------2wllB01 B:45-152  [code=1.10.287.70, no name defined]                                                       2wllB02 B:153-309 G protein-activated inward          rectifier potassium channel 1                                                                           CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...----------------------------------........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...........hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eee...eeeeee..eeeeeeeeee.....eeeeeeeeeeee.---------.eeee......ee......eeeeee..........hhhhhhh...eeeeeeeeee.....eeeeeeeee...eee.........ee..ee.ee.......... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2wll B   1 MNV----------------------------------VIAYGMPASVWRDLYYWALKVSWPVFFASLAALFVVNNTLFALLYQLGDAPIANQSPPGFVGAFFFSVETLATVGYGDMHPQTVYAHAIATLEIFVGMSGIALSTGLVFARFARPRAKIMFARHAIVRPFNGRMTLMVRAANARQNVIAEARAKMRLMRR---------MKIHDLKLVRNEHPIFLLGWNMMHVIDESSPLFGETPESLAEGRAMLLVMIEGSDETTAQVMQARHAWEHDDIRWHHRYVDLMSDVDGMTHIDYTRFNDTEPV 309
                              |      -         -         -       |40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190      |  -      |210       220       230       240       250       260       270       280       290       300         
                              3                                 38                                                                                                                                                            197       207
   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 '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 2WLL)

(-) CATH Domains  (2, 4)

Asymmetric Unit
(-)
Class: Mainly Alpha (13335)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2WLL)

(-) Gene Ontology  (5, 5)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (P83698_BURPE | P83698)
molecular function
    GO:0005242    inward rectifier potassium channel activity    Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force. The inward-rectification is due to a voltage-dependent block of the channel pore by a specific ligand or ligands, and as a result the macroscopic conductance depends on the difference between membrane voltage and the K+ equilibrium potential rather than on membrane voltage itself.
biological process
    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.
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.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/TrEMBL
        P83698_BURPE | P83698: 1p7b

(-) Related Entries Specified in the PDB File

1p7b CRYSTAL STRUCTURE OF AN INWARD RECTIFIER POTASSIUM CHANNEL
1xl4 INTERMEDIATE GATING STRUCTURE 1 OF THE INWARDLY RECTIFYINGK+ CHANNEL KIRBAC3.1
1xl6 INTERMEDIATE GATING STRUCTURE 2 OF THE INWARDLY RECTIFYINGK+ CHANNEL KIRBAC3.1
2wlh POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wli POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wlj POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wlk STRUCTURE OF THE ATP-SENSITIVE INWARD RECTIFIER POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wlm POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wln POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2wlo POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2x6a POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2x6b POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM
2x6c POTASSIUM CHANNEL FROM MAGNETOSPIRILLUM MAGNETOTACTICUM