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(-) Description

Title :  A NOVEL OPEN-STATE CRYSTAL STRUCTURE OF THE PROKARYOTIC INWARD RECTIFIER KIRBAC3.1
 
Authors :  L. Zubcevic, V. N. Bavro, J. R. C. Muniz, M. R. Schmidt, S. Wang, R. De Zor C. Venien-Bryan, M. S. P. Sansom, C. G. Nichols, S. J. Tucker
Date :  15 Jul 13  (Deposition) - 20 Nov 13  (Release) - 22 Jan 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.46
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (4x)
Keywords :  Metal Transport, Potassium Channel, Membrane (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  L. Zubcevic, V. N. Bavro, J. R. Muniz, M. R. Schmidt, S. Wang, R. De Zorzi, C. Venien-Bryan, M. S. Sansom, C. G. Nichols, S. J. Tucker
Control Of Kirbac3. 1 Potassium Channel Gating At The Interface Between Cytoplasmic Domains.
J. Biol. Chem. V. 289 143 2014
PubMed-ID: 24257749  |  Reference-DOI: 10.1074/JBC.M113.501833

(-) Compounds

Molecule 1 - INWARD RECTIFIER POTASSIUM CHANNEL KIRBAC3.1
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET30A
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Mutation: YES
    Organism Scientific: MAGNETOSPIRILLUM MAGNETOTACTICUM
    Organism Taxid: 188

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (4x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 12)

Asymmetric Unit (3, 12)
No.NameCountTypeFull Name
1CL3Ligand/IonCHLORIDE ION
2K8Ligand/IonPOTASSIUM ION
3PEG1Ligand/IonDI(HYDROXYETHYL)ETHER
Biological Unit 1 (1, 4)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2K-1Ligand/IonPOTASSIUM ION
3PEG4Ligand/IonDI(HYDROXYETHYL)ETHER

(-) Sites  (9, 9)

Asymmetric Unit (9, 9)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR A:60 , CYS A:119BINDING SITE FOR RESIDUE PEG A 401
2AC2SOFTWARETHR A:96 , K A:403BINDING SITE FOR RESIDUE K A 402
3AC3SOFTWARETHR A:96 , ILE A:97 , K A:402 , K A:404BINDING SITE FOR RESIDUE K A 403
4AC4SOFTWAREILE A:97 , GLY A:98 , K A:403 , K A:405BINDING SITE FOR RESIDUE K A 404
5AC5SOFTWAREGLY A:98 , TYR A:99 , K A:404 , K A:408BINDING SITE FOR RESIDUE K A 405
6AC6SOFTWAREK A:405BINDING SITE FOR RESIDUE K A 408
7AC7SOFTWAREARG A:129BINDING SITE FOR RESIDUE CL A 410
8AC8SOFTWAREARG A:129BINDING SITE FOR RESIDUE CL A 411
9AC9SOFTWAREASP A:219 , HIS A:221 , SER A:222 , HOH A:511 , HOH A:613BINDING SITE FOR RESIDUE CL A 412

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4LP8)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4LP8)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4LP8)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4LP8)

(-) Exons   (0, 0)

(no "Exon" information available for 4LP8)

(-) 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:283
                                                                                                                                                                                                                                                                                                                           
               SCOP domains d4lp8a1 A:13-138 automated matches                                                                                        d4lp8a2 A:139-299 automated matches                                                                                                                               SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...................hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...ee.....hhhhhhhhhhhhhh.......eehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eee...eeeeee..eeeeeeeeee.....eeeeeeeeeeeeeee.....eeeeeeee.....eeeee..eeeeeee..........hhhhhhhh..eeeeeeeeee....eeeeeeeeee...eee..ee...eee.....eee.......ee..... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4lp8 A  13 RILNSDGSSNITRLGGWLDDHYHDLLTVSWPVFITLITGLYLVTNALFALAYLACGDVIENARPGSFTDAFFFSVQTMATIGYGKLIPIGPLANTLVTLEALCGMLGLAVAARLIYARFTRPTAGVLFSSRMVISDFEGKPTLMMRLANLRIEQIIEADVHLVLVRSEISQEGMVFRRFHDLTLTRSRLPIFSLSWTVMHPIDHHSPIYGETDETLRNSHSEFLVLFTGHHEAFAQNVHARHAYSCDEIIWGGHFVDVFTTLPDGRRALDLGKFHEIAQHHHH 299
                                    22    ||  36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266       276       286       296   
                                         27|                                                                                                                                                                                                                                                                           
                                          32
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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  (2, 2)

Asymmetric Unit
(-)
Class: All beta proteins (24004)
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4LP8)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4LP8)

(-) Gene Ontology  (9, 9)

Asymmetric Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        IRK10_MAGMG | D9N164: 1xl6 2wlh 2wli 2wlj 2wlk 2wlm 2wln 2wlo 2x6a 2x6b 2x6c 3zrs

(-) Related Entries Specified in the PDB File

3zrs X-RAY CRYSTAL STRUCTURE OF A KIRBAC POTASSIUM CHANNEL HIGHLIGHTS A MECHANISM OF CHANNEL OPENING AT THE BUNDLE- CROSSING GATE