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(-) Description

Title :  CRYSTAL STRUCTURE OF HUMAN TWO PORE DOMAIN POTASSIUM ION CHANNEL TREK1 (K2P2.1)
 
Authors :  A. C. W. Pike, Y. Y. Dong, A. Tessitore, S. Goubin, C. Strain-Damerell, S. Mukhopadhyay, K. Kupinska, D. Wang, R. Chalk, G. Berridge, M. Grieb L. Shrestha, J. H. Ang, A. Mackenzie, A. Quigley, S. R. Bushell, C. A. Sh B. Faust, A. Chu, L. Dong, F. Von Delft, C. H. Arrowsmith, A. M. Edwards C. Bountra, N. A. Burgess-Brown, E. P. Carpenter
Date :  30 Jun 14  (Deposition) - 06 Aug 14  (Release) - 06 Aug 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Ion Channel, Membrane Protein, K2P, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. C. W. Pike, Y. Y. Dong, A. Tessitore, S. Goubin, C. Strain-Damerell, S. Mukhopadhyay, K. Kupinska, D. Wang, R. Chalk, G. Berridge, M. Grieben, L. Shrestha, J. H. Ang, A. Mackenzie, A. Quigley, S. R. Bushell, C. A. Shintre, B. Faust, A. Chu, L. Dong, F. Von Delft, C. H. Arrowsmith, A. M. Edwards, C. Bountra, N. A. Burgess-Brown, E. P. Carpenter
Crystal Structure Of Human Two Pore Domain Potassium Ion Channel Trek1 (K2P2. 1)
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL SUBFAMILY K MEMBER 2
    Chains: A, B
    Engineered: YES
    Expression System: SPODOPTERA FRUGIPERDA
    Expression System Common: FALL ARMYWORM
    Expression System Plasmid: PFB-CT10HF-LIC
    Expression System Taxid: 7108
    Expression System Vector Type: BACULOVIRUS
    Fragment: UNP RESIDUES 26-300
    Gene: KCNK2, TREK, TREK1
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: OUTWARD RECTIFYING POTASSIUM CHANNEL PROTEIN TREK-1,TREK-1 K(+) CHANNEL SUBUNIT,TWO PORE DOMAIN POTASSIUM CHANNEL TREK-1,TWO PORE POTASSIUM CHANNEL TPKC1

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (4, 10)

Asymmetric/Biological Unit (4, 10)
No.NameCountTypeFull Name
137X5Ligand/IonOCTYL GLUCOSE NEOPENTYL GLYCOL
2K3Ligand/IonPOTASSIUM ION
3MG1Ligand/IonMAGNESIUM ION
4NAG1Ligand/IonN-ACETYL-D-GLUCOSAMINE

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWARETHR A:142 , THR A:251 , K B:403 , THR B:142 , THR B:251binding site for residue K A 401
02AC2SOFTWAREILE A:143 , GLY A:146 , HOH A:509 , PHE B:145binding site for residue K A 402
03AC3SOFTWARETRP A:295 , VAL A:298 , ILE A:299 , GLU A:302 , 37X A:406 , SER B:75binding site for residue 37X A 403
04AC4SOFTWARETHR A:79 , LYS A:191 , THR A:195binding site for residue 37X A 404
05AC5SOFTWAREASP A:179 , GLY A:182 , THR A:183 , GLY A:186 , ILE A:189 , SER A:210 , THR A:211binding site for residue 37X A 405
06AC6SOFTWAREMET A:291 , VAL A:298 , 37X A:403binding site for residue 37X A 406
07AC7SOFTWAREGLY A:113 , HIS A:126 , GLY A:260binding site for residue MG A 407
08AC8SOFTWARETHR A:142 , ILE A:143 , THR A:251 , ILE A:252 , K A:401 , THR B:142 , ILE B:143 , THR B:251 , ILE B:252binding site for residue K B 403
09AC9SOFTWAREGLN A:105 , ALA A:112 , ILE A:114 , ARG A:151 , GLN A:203 , GLN B:76 , GLN B:83 , LYS B:84binding site for residue 37X B 402
10AD1SOFTWAREASN B:95 , THR B:97binding site for Mono-Saccharide NAG B 401 bound to ASN B 95

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:93 -B:93

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Leu A:117 -Gly A:118

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 4TWK)

(-) 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:255
                                                                                                                                                                                                                                                                                               
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhh..............hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhh...............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4twk A  38 TINVMKWKTVSTIFLVVVLYLIIGATVFKALEQPHEISQRTTIVIQKQTFISQHSCVNSTELDELIQQIVAAINAGIIPLGNTSNQISHWDLGSSFFFAGTVITTIGFGNISPRTEGGKIFCIIYALLGIPLFGFLLAGVGDQLGTIFGKGIAKVEDTFIKWNVSQTKIRIISTIIFILFGCVLFVALPGWSALDAIYFVVITLTTIGFGDYVAGGSDIKPVVWFWILVGLAYFAAVLSMIGDWLRVISAENLYF 306
                                    47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       235       245       255       271       281       291       301     
                                                                                                                                                                                                                      226|                          264|                                   
                                                                                                                                                                                                                       235                           271                                   


Chain B from PDB  Type:PROTEIN  Length:241
                                                                                                                                                                                                                                                                                 
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4twk B  42 MKWKTVSTIFLVVVLYLIIGATVFKALEQPHEISQRTTIVIQKQTFISQHSCVNSTELDELIQQIVAAINAGIIPISHWDLGSSFFFAGTVITTIGFGNISPRTEGGKIFCIIYALLGIPLFGFLLAGVGDQLGTIFGKGIAKVEDTFIKWNVSQTKIRIISTIIFILFGCVLFVALPAIIFKHIEGWSALDAIYFVVITLTTIGFGDYKPVVWFWILVGLAYFAAVLSMIGDWLRVISAE 302
                                    51        61        71        81        91       101       111    || 128       138       148       158       168       178       188       198       208       218       228       238       248       271       281       291       301 
                                                                                                    116|                                                                                                                                  257|                               
                                                                                                     124                                                                                                                                   271
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  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 4TWK)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (38, 38)

Asymmetric/Biological Unit(hide GO term definitions)

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  Cis Peptide Bonds
    Leu A:117 - Gly A:118   [ RasMol ]  
 

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