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(-) Description

Title :  CRYSTAL STRUCTURE OF KV CHANNEL-INTERACTING PROTEIN 1 (KCHIP-1)
 
Authors :  R. H. Scannevin, K. -W. Wang, F. Jow, J. Megules, D. C. Kopsco, W. Edris, K. C. Carroll, Q. Lu, W. -X. Xu, Z. -B. Xu, A. H. Katz, S. Olland, L. Lin, M. Taylor, M. Stahl, K. Malakian, W. Somers, L. Mosyak, M. R. Bowlby, P. Chanda, K. J. Rhodes
Date :  06 Jan 04  (Deposition) - 11 Jan 05  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.30
Chains :  Asym./Biol. Unit :  A
Keywords :  Kchip, Kv Channel-Interacting Protein, Calcium-Binding Protein, Ef-Finger, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. H. Scannevin, K. -W. Wang, F. Jow, J. Megules, D. C. Kopsco, W. Edris, K. C. Carroll, W. -X. Xu, Z. -B. Xu, A. H. Katz, S. Olland, L. Lin, M. Taylor, M. Stahl, K. Malakian, W. Somers, L. Mosyak, M. R. Bowlby, P. Chanda, K. J. Rhodes
Two N-Terminal Domains Of Kv4 K(+) Channels Regulate Binding To And Modulation By Kchip1.
Neuron V. 41 587 2004
PubMed-ID: 14980207  |  Reference-DOI: 10.1016/S0896-6273(04)00049-2
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - KV CHANNEL INTERACTING PROTEIN 1
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET-21B(+)
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: KCNIP1
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 2)

Asymmetric/Biological Unit (1, 2)
No.NameCountTypeFull Name
1CA2Ligand/IonCALCIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:135 , ASN A:137 , ASP A:139 , TYR A:141 , GLU A:146 , HOH A:239BINDING SITE FOR RESIDUE CA A 225
2AC2SOFTWAREASP A:183 , ASN A:185 , ASP A:187 , ILE A:189 , GLU A:194 , HOH A:264BINDING SITE FOR RESIDUE CA A 226

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1S1E)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1S1E)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1S1E)

(-) PROSITE Motifs  (2, 5)

Asymmetric/Biological Unit (2, 5)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_2PS50222 EF-hand calcium-binding domain profile.KCIP1_HUMAN97-132
133-168
181-216		  3A:86-121
A:122-157
A:170-205
2EF_HAND_1PS00018 EF-hand calcium-binding domain.KCIP1_HUMAN146-158
194-206		  2A:135-147
A:183-195

(-) Exons   (0, 0)

(no "Exon" information available for 1S1E)

(-) 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:181
 aligned with KCIP1_HUMAN | Q9NZI2 from UniProtKB/Swiss-Prot  Length:227

    Alignment length:181
                                                                                                                                                                                                            227  
                                    58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218        |- 
          KCIP1_HUMAN    49 GLEQLEAQTNFTKRELQVLYRGFKNECPSGVVNEDTFKQIYAQFFPHGDASTYAHYLFNAFDTTQTGSVKFEDFVTALSILLRGTVHEKLRWTFNLYDINKDGYINKEEMMDIVKAIYDMMGKYTYPVLKEDTPRQHVDVFFQKMDKNKDGIVTLDEFLESCQEDDNIMRSLQLFQNVM--   -
               SCOP domains d1s1ea_ A: Kchip1, Kv4 potassium channel-interacting protein                                                                                                                          SCOP domains
               CATH domains 1s1eA00 A:38-218 EF-hand                                                                                                                                                              CATH domains
           Pfam domains (1) ---------------------------EF_hand_6-1s1eA03 A:65-118                            --------------------------------------------------------EF_hand_3-1s1eA01        ------------------- Pfam domains (1)
           Pfam domains (2) ----------------------------------------------------------------------------------------EF_hand_5-1s1eA02 A:126-199                                               ------------------- Pfam domains (2)
         Sec.struct. author hhhhhhhhh..hhhhhhhhhhhhhhhh.....hhhhhhhhhhh......hhhhhhhhhhhhh.......hhhhhhhhhhhhhhhhhhhhhhhhhhhhh.....eehhhhhhhhhhhhhhhhh...hhhhh..hhhhhhhhhhhhhh......eehhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------------------------------------------------EF_HAND_2  PDB: A:86-121            EF_HAND_2  PDB: A:122-157           ------------EF_HAND_2  PDB: A:170-205           ------------- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------EF_HAND_1    -----------------------------------EF_HAND_1    ----------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1s1e A  38 GLEQLEAQTNFTKRELQVLYRGFKNECPSGVVNEETFKQIYAQFFPHGDASTYAHYLFNAFDTTQTGSVKFEDFVTALSILLRGTVHEKLRWTFNLYDINKDGYINKEEMMDIVKAIYDMMGKYTYPVLKEDTPRQHVDVFFQKMDKNKDGIVTLDEFLESCQEDDNIMRSLQLFQNVMVE 218
                                    47        57        67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217
   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  (1, 1)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (3, 3)

Asymmetric/Biological Unit
(-)
Clan: EF_hand (270)

(-) Gene Ontology  (20, 20)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (KCIP1_HUMAN | Q9NZI2)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0005267    potassium channel activity    Enables the facilitated diffusion of a potassium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
    GO:0015459    potassium channel regulator activity    Modulates potassium channel activity via direct interaction interaction with a potassium channel (binding or modification).
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0005244    voltage-gated ion channel activity    Enables the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
    GO:0061337    cardiac conduction    Transfer of an organized electrical impulse across the heart to coordinate the contraction of cardiac muscles. The process begins with generation of an action potential (in the sinoatrial node (SA) in humans) and ends with a change in the rate, frequency, or extent of the contraction of the heart muscles.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0071805    potassium ion transmembrane transport    A process in which a potassium ion is transported from one side of a membrane to the other.
    GO:0006813    potassium ion transport    The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0034765    regulation of ion transmembrane transport    Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
    GO:1901379    regulation of potassium ion transmembrane transport    Any process that modulates the frequency, rate or extent of potassium ion transmembrane transport.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0042995    cell projection    A prolongation or process extending from a cell, e.g. a flagellum or axon.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0030425    dendrite    A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
    GO:0031234    extrinsic component of cytoplasmic side of plasma membrane    The component of a plasma membrane consisting of gene products and protein complexes that are loosely bound to its cytoplasmic surface, but not integrated into the hydrophobic region.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0008076    voltage-gated potassium channel complex    A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential.

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 Related Entries

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

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        KCIP1_HUMAN | Q9NZI2: 2i2r 2nz0

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