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(-) Description

Title :  HUMAN K2P4.1 (TRAAK) POTASSIUM CHANNEL, G124I MUTANT
 
Authors :  M. Lolicato, D. L. Jr. Minor
Date :  19 Nov 14  (Deposition) - 17 Dec 14  (Release) - 07 Jan 15  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.30
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Potassium Ion Channel, Metal Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. Lolicato, P. M. Riegelhaupt, C. Arrigoni, K. A. Clark, D. L. Minor
Transmembrane Helix Straightening And Buckling Underlies Activation Of Mechanosensitive And Thermosensitive K2P Channels.
Neuron V. 84 1198 2014
PubMed-ID: 25500157  |  Reference-DOI: 10.1016/J.NEURON.2014.11.017

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL SUBFAMILY K MEMBER 4
    Chains: A, B
    Engineered: YES
    Expression System: PICHIA PASTORIS
    Expression System Strain: SMD1163
    Expression System Taxid: 4922
    Fragment: UNP RESIDUES 1-300
    Gene: KCNK4, TRAAK
    Mutation: YES
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: TWIK-RELATED ARACHIDONIC ACID-STIMULATED POTASSIUM CHANNEL PROTEIN, TRAAK, TWO PORE POTASSIUM CHANNEL KT4.1, TWO PORE K(+) CHANNEL KT4.1

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 6)

Asymmetric/Biological Unit (1, 6)
No.NameCountTypeFull Name
1K6Ligand/IonPOTASSIUM ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:129 , ILE A:130 , THR A:238 , VAL A:239 , THR B:129 , ILE B:130 , THR B:238 , VAL B:239 , K B:401BINDING SITE FOR RESIDUE K A 401
2AC2SOFTWARETHR A:129 , THR A:238 , THR B:129 , THR B:238BINDING SITE FOR RESIDUE K A 402
3AC3SOFTWAREGLY A:131 , TYR A:132 , GLY A:240 , PHE A:241 , GLY B:131 , TYR B:132 , GLY B:240 , PHE B:241 , K B:401BINDING SITE FOR RESIDUE K A 405
4AC4SOFTWAREILE A:130 , GLY A:131 , VAL A:239 , GLY A:240 , K A:401 , K A:405 , ILE B:130 , GLY B:131 , VAL B:239 , GLY B:240BINDING SITE FOR RESIDUE K B 401

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:78 -B:78

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Gly B:96 -Gly B:97

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4RUE)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4RUE)

(-) Exons   (0, 0)

(no "Exon" information available for 4RUE)

(-) Sequences/Alignments

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:251
                                                                                                                                                                                                                                                                                           
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh..........hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhh..................hhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4rue A  23 PGRAMRSTTLLALLALVLLYLVSGALVFRALEQPHEQQAQRELGEVREKFLRAHPCVSDQELGLLIKEVADALGGGADPEHSAWDLGSAFFFSITIITTIGYGNVALRTDAGRLFCIFYALVGIPLFGILLAGVGDRLGSSLRHGIGHIEAIFLKWHVPPELVRVLSAMLFLLIGCLLFVLTPTFVFCYMEDWSKLEAIYFVIVTLTTVGFGDYVAGADPRQDSPAYQPLVWFWILLGLAYFASVLTTIGN 281
                                    32        42        52        62        72        82        92       102|      120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280 
                                                                                                         102|                                                                                                                                                                          
                                                                                                          111                                                                                                                                                                          


Chain B from PDB  Type:PROTEIN  Length:252
                                                                                                                                                                                                                                                                                            
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh...............hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh..................hhhhhhhhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 4rue B  28 RSTTLLALLALVLLYLVSGALVFRALEQPHEQQAQRELGEVREKFLRAHPCVSDQELGLLIKEVADALGGGADPQSSHSAWDLGSAFFFSITIITTIGYGNVALRTDAGRLFCIFYALVGIPLFGILLAGVGDRLGSSLRHGIGHIEAIFLKWHVPPELVRVLSAMLFLLIGCLLFVLTPTFVFCYMEDWSKLEAIYFVIVTLTTVGFGDYVAGADPRQDSPAYQPLVWFWILLGLAYFASVLTTIGNWLRV 285
                                    37        47        57        67        77        87        97   ||  113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283  
                                                                                                   101|                                                                                                                                                                                 
                                                                                                    108
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  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 4RUE)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4RUE)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4RUE)

(-) Gene Ontology  (24, 24)

Asymmetric/Biological Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        KCNK4_HUMAN | Q9NYG8: 3um7 4i9w 4ruf 4wfe 4wff 4wfg 4wfh

(-) Related Entries Specified in the PDB File

4ruf