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(-) Description

Title :  CRYSTAL STRUCTURE OF NAK2K CHANNEL Y66F MUTANT
 
Authors :  D. B. Sauer, W. Zeng, S. Raghunathan, Y. Jiang
Date :  15 Aug 11  (Deposition) - 19 Oct 11  (Release) - 19 Oct 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (4x)
Biol. Unit 2:  B  (4x)
Keywords :  Membrane Protein, Ion Channel (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  D. B. Sauer, W. Zeng, S. Raghunathan, Y. Jiang
Protein Interactions Central To Stabilizing The K+ Channel Selectivity Filter In A Four-Sited Configuration For Selective K+ Permeation.
Proc. Natl. Acad. Sci. Usa V. 108 16634 2011
PubMed-ID: 21933962  |  Reference-DOI: 10.1073/PNAS.1111688108

(-) Compounds

Molecule 1 - POTASSIUM CHANNEL PROTEIN
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PQE-60
    Expression System Strain: SG13009
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: BC_0669
    Mutation: YES
    Organism Scientific: BACILLUS CEREUS
    Organism Taxid: 226900
    Strain: ATCC 14579 / DSM 31

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (4x): A 
Biological Unit 2 (4x):  B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 8)

Asymmetric Unit (1, 8)
No.NameCountTypeFull Name
1K8Ligand/IonPOTASSIUM ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1K-1Ligand/IonPOTASSIUM ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1K-1Ligand/IonPOTASSIUM ION

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREK A:3 , K A:5 , THR A:63 , VAL A:64BINDING SITE FOR RESIDUE K A 1
2AC2SOFTWAREK A:3 , GLY A:65 , PHE A:66BINDING SITE FOR RESIDUE K A 2
3AC3SOFTWAREK A:1 , K A:2 , VAL A:64 , GLY A:65BINDING SITE FOR RESIDUE K A 3
4AC4SOFTWAREK A:1 , THR A:63BINDING SITE FOR RESIDUE K A 5
5AC5SOFTWAREK B:6 , K B:7 , THR B:63 , VAL B:64BINDING SITE FOR RESIDUE K B 4
6AC6SOFTWAREK B:4 , THR B:63BINDING SITE FOR RESIDUE K B 6
7AC7SOFTWAREK B:4 , K B:8 , VAL B:64 , GLY B:65BINDING SITE FOR RESIDUE K B 7
8AC8SOFTWAREK B:7 , GLY B:65 , PHE B:66BINDING SITE FOR RESIDUE K B 8

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3TET)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3TET)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3TET)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3TET)

(-) Exons   (0, 0)

(no "Exon" information available for 3TET)

(-) 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:93
 aligned with Q81HW2_BACCR | Q81HW2 from UniProtKB/TrEMBL  Length:114

    Alignment length:93
                                    30        40        50        60        70        80        90       100       110   
         Q81HW2_BACCR    21 DKEFQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGDGNFSPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLPSILSNRKK 113
               SCOP domains --------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------- Transcript
                 3tet A  21 DKEFQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGFGDFSPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLPSILSNLVP 113
                                    30        40        50        60        70        80        90       100       110   


Chain B from PDB  Type:PROTEIN  Length:96
 aligned with Q81HW2_BACCR | Q81HW2 from UniProtKB/TrEMBL  Length:114

    Alignment length:96
                                    28        38        48        58        68        78        88        98       108      
         Q81HW2_BACCR    19 WKDKEFQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGDGNFSPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLPSILSNRKKE 114
               SCOP domains ------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhh..........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                 3tet B  19 AKDKEFQVLFVLTILTLISGTIFYSTVEGLRPIDALYFSVVTLTTVGFGDFSPQTDFGKIFTILYIFIGIGLVFGFIHKLAVNVQLPSILSNLVPR 114
                                    28        38        48        58        68        78        88        98       108
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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 3TET)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3TET)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3TET)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q81HW2_BACCR | Q81HW2)
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
        Q81HW2_BACCR | Q81HW2: 2ahy 2ahz 2q67 2q68 2q69 2q6a 3e83 3e86 3e89 3e8b 3e8f 3e8g 3e8h 3k03 3k04 3k06 3k08 3k0d 3k0g 3t1c 3t2m 3t4d 3t4z 3tcu 4pdl 4pdm 4pdr 4pdv 4r50 4r6z 4r7c 4r8c 4rai 4ro2 4zbm

(-) Related Entries Specified in the PDB File

3ouf STRUCTURE OF A K+ SELECTIVE NAK MUTANT
3t4d CRYSTAL STRUCTURE OF NAK2K CHANNEL Y55F MUTANT
3t4z CRYSTAL STRUCTURE OF NAK2K CHANNEL Y55W MUTANT