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(-) Description

Title :  CRYSTAL STRUCTURE OF THE KV7.1 PROXIMAL C-TERMINAL DOMAIN IN COMPLEX WITH CALMODULIN
 
Authors :  D. Sachyani, J. A. Hirsch
Date :  14 Sep 14  (Deposition) - 05 Nov 14  (Release) - 17 Dec 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.86
Chains :  Asym./Biol. Unit :  A,B,C,D
Keywords :  Signaling Protein, Voltage-Dependent Potassium Channels, Long Qt Syndrome, Calmodulin (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  D. Sachyani, M. Dvir, R. Strulovich, G. Tria, W. Tobelaim, A. Peretz, O. Pongs, D. Svergun, B. Attali, J. A. Hirsch
Structural Basis Of A Kv7. 1 Potassium Channel Gating Module: Studies Of The Intracellular C-Terminal Domain In Complex With Calmodulin.
Structure V. 22 1582 2014
PubMed-ID: 25441029  |  Reference-DOI: 10.1016/J.STR.2014.07.016

(-) Compounds

Molecule 1 - POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY KQT MEMBER 1
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET DUET
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: PROXIMAL C-TERMINAL DOMAIN, RESIDUES 352-396 AND RESIDUES 502-539
    Mutation: YES
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: IKS PRODUCING SLOW VOLTAGE-GATED POTASSIUM CHANNEL SUBUNIT ALPHA KVLQT1, KQT-LIKE 1, VOLTAGE-GATED POTASSIUM CHANNEL SUBUNIT KV7.1, KV7.1 CHANNEL
 
Molecule 2 - CALMODULIN
    Chains: C, D
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET DUET
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Fragment: RESIDUES 1-149
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Synonym: CAM, KV7.1 CHANNEL

 Structural Features

(-) Chains, Units

  1234
Asymmetric/Biological Unit : ABCD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric/Biological Unit (2, 5)
No.NameCountTypeFull Name
1CA4Ligand/IonCALCIUM ION
2SCN1Ligand/IonTHIOCYANATE ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP C:20 , ASP C:22 , ASP C:24 , THR C:26 , GLU C:31BINDING SITE FOR RESIDUE CA C 201
2AC2SOFTWAREASP C:56 , ASP C:58 , ASN C:60 , THR C:62 , GLU C:67BINDING SITE FOR RESIDUE CA C 202
3AC3SOFTWAREASP D:20 , ASP D:22 , ASP D:24 , THR D:26 , GLU D:31BINDING SITE FOR RESIDUE CA D 201
4AC4SOFTWAREASP D:56 , ASP D:58 , ASN D:60 , THR D:62 , GLU D:67BINDING SITE FOR RESIDUE CA D 202
5AC5SOFTWAREGLN B:521 , GLN D:41BINDING SITE FOR RESIDUE SCN A1536

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4V0C)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Leu D:39 -Gly D:40

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4V0C)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4V0C)

(-) Exons   (0, 0)

(no "Exon" information available for 4V0C)

(-) 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:96
                                                                                                                                
               SCOP domains ------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author .......................hhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                 4v0c A 330 HHHHHGSDYDDIFTTESALKVQQKQRQKHFNRQIPAAASLIQTAWRCYAAENPDSSTWKIYIEFSQLREHHRATIKVIRRMQYFVAKKKFQQARKP 535
                                   339     ||354       364       374       384       394   ||  509       519       529      
                                         345|                                            398|                               
                                          351                                             504                               


Chain B from PDB  Type:PROTEIN  Length:77
                                                                                                             
               SCOP domains ----------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------- Transcript
                 4v0c B 354 KVQQKQRQKHFNRQIPAAASLIQTAWRCYAAENPDSSTWKIYIEFSQLREHHRATIKVIRRMQYFVAKKKFQQARKP 535
                                   363       373       383       393    || 508       518       528       
                                                                      398|                               
                                                                       504                               


Chain C from PDB  Type:PROTEIN  Length:143
                                                                                                                                                                               
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhhhhhhh.......hhhhhhhhhhhh....hhhhhhhhhhhhh.......hhhhhhhhhh.......hhhhhhhhhhhhh.....eeehhhhhhhhhhh....hhhhhhhhhhhhh.....eeehhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4v0c C   5 TEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA 147
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144   


Chain D from PDB  Type:PROTEIN  Length:145
                                                                                                                                                                                 
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhh.......hhhhhhhhhhhh.......hhhhhhhhhh.......hhhhhhhhhhh......hhhhhhhhhhh.........hhhhhhhhhhhh....hhhhhhhhhhhhh.......hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4v0c D   3 QLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTA 147
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142
   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 4V0C)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4V0C)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4V0C)

(-) Gene Ontology  (147, 152)

Asymmetric/Biological Unit(hide GO term definitions)

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  Cis Peptide Bonds
    Leu D:39 - Gly D:40   [ RasMol ]  
 

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  4v0c
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  KCNQ1_HUMAN | P51787
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 Related Entries

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

UniProtKB/Swiss-Prot
        CALM1_HUMAN | P0DP23: 1aji 1cdl 1cll 1cm1 1cm4 1ctr 1deg 1iwq 1j7o 1j7p 1k90 1k93 1l7z 1lvc 1nkf 1pk0 1qiv 1qiw 1s26 1sk6 1sw8 1up5 1wrz 1xfu 1xfv 1xfw 1xfx 1xfy 1xfz 1y6w 1yr5 1yrt 1yru 1zot 1zuz 2be6 2f3y 2f3z 2hf5 2i08 2jzi 2k0e 2k0f 2k0j 2k61 2kne 2kug 2kuh 2l53 2l7l 2lgf 2ll6 2ll7 2lqc 2lqp 2lv6 2m0j 2m0k 2m55 2mg5 2n27 2n6a 2n77 2n8j 2r28 2v01 2v02 2vay 2w73 2wel 2x0g 2y4v 3bya 3cln 3dve 3dvj 3dvk 3dvm 3evv 3ewt 3ewv 3g43 3hr4 3j41 3o77 3o78 3oxq 3sui 3uct 3ucw 3ucy 4bw7 4bw8 4byf 4dck 4djc 4gow 4jpz 4jq0 4l79 4lzx 4m1l 4ovn 4q57 4q5u 4umo 4upu 5coc 5dbr 5dow 5dsu 5ggm 5i0i 5j03 5j8h 5k7l 5k8q 5vms 5wsu 5wsv
        CALM2_HUMAN | P0DP24: 1aji 1cdl 1cll 1cm1 1cm4 1ctr 1deg 1iwq 1j7o 1j7p 1k90 1k93 1l7z 1lvc 1nkf 1pk0 1qiv 1qiw 1s26 1sk6 1sw8 1up5 1xfu 1xfv 1xfw 1xfx 1xfy 1xfz 1y6w 1yr5 1yrt 1yru 1zot 1zuz 2be6 2f3y 2f3z 2hf5 2jzi 2k0e 2k0f 2k0j 2k61 2kne 2kug 2kuh 2l53 2lgf 2ll6 2ll7 2lqc 2lqp 2lv6 2m0j 2m0k 2m55 2mg5 2n27 2n6a 2n77 2n8j 2r28 2v01 2v02 2vay 2w73 2wel 2x0g 2y4v 3bya 3cln 3dve 3dvj 3dvk 3dvm 3ewt 3ewv 3g43 3hr4 3j41 3oxq 3sui 3uct 3ucw 3ucy 4bw7 4bw8 4byf 4dck 4djc 4gow 4jpz 4jq0 4l79 4lzx 4m1l 4ovn 4q57 4q5u 4umo 4upu 5coc 5dbr 5dow 5dsu 5ggm 5i0i 5j03 5j8h 5k7l 5k8q 5vms 5wsu 5wsv
        CALM3_HUMAN | P0DP25: 1aji 1cdl 1cll 1cm1 1cm4 1ctr 1deg 1iwq 1j7o 1j7p 1k90 1k93 1l7z 1lvc 1nkf 1pk0 1qiv 1qiw 1s26 1sk6 1sw8 1up5 1xfu 1xfv 1xfw 1xfx 1xfy 1xfz 1y6w 1yr5 1yrt 1yru 1zot 1zuz 2be6 2f3y 2f3z 2hf5 2jzi 2k0e 2k0f 2k0j 2k61 2kne 2kug 2kuh 2l53 2lgf 2ll6 2ll7 2lqc 2lqp 2lv6 2m0j 2m0k 2m55 2mg5 2n27 2n6a 2n77 2n8j 2r28 2v01 2v02 2vay 2w73 2wel 2x0g 2y4v 3bya 3cln 3dve 3dvj 3dvk 3dvm 3ewt 3ewv 3g43 3hr4 3j41 3oxq 3sui 3uct 3ucw 3ucy 4bw7 4bw8 4byf 4dck 4djc 4gow 4jpz 4jq0 4l79 4lzx 4m1l 4ovn 4q57 4q5u 4umo 4upu 5coc 5dbr 5dow 5dsu 5ggm 5i0i 5j03 5j8h 5k7l 5k8q 5vms 5wsu 5wsv
        KCNQ1_HUMAN | P51787: 3bj4 3hfc 3hfe 4umo

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 4V0C)