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(-) Description

Title :  CRYSTAL STRUCTURE OF CALMODULIN IN COMPLEX WITH A RYANODINE RECEPTOR PEPTIDE
 
Authors :  A. A. Maximciuc, Y. Shamoo, K. R. Mackenzie
Date :  19 Oct 05  (Deposition) - 31 Oct 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Ef-Hand, Type-2 Turn, Calcium Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. A. Maximciuc, J. A. Putkey, Y. Shamoo, K. R. Mackenzie
Complex Of Calmodulin With A Ryanodine Receptor Target Reveals A Novel, Flexible Binding Mode.
Structure V. 14 1547 2006
PubMed-ID: 17027503  |  Reference-DOI: 10.1016/J.STR.2006.08.011
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CALMODULIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneCALM
    Organism CommonCHICKEN
    Organism ScientificGALLUS GALLUS
    Organism Taxid9031
    SynonymCAM
 
Molecule 2 - RYANODINE RECEPTOR 1
    ChainsB
    EngineeredYES
    FragmentRESIDUES 3614-3643
    Other DetailsSYNTHETIC PEPTIDE BASED ON THE SEQUENCE OF RABBIT RYANODINE RECEPTOR 1
    SynonymSKELETAL MUSCLE-TYPE RYANODINE RECEPTOR, RYR1, RYR-1, SKELETAL MUSCLE CALCIUM RELEASE CHANNEL
    SyntheticYES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 4)

Asymmetric/Biological Unit (1, 4)
No.NameCountTypeFull Name
1CA4Ligand/IonCALCIUM ION

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASP A:20 , ASP A:22 , ASP A:24 , THR A:26 , GLU A:31 , HOH A:171BINDING SITE FOR RESIDUE CA A 149
2AC2SOFTWAREASP A:56 , ASP A:58 , ASN A:60 , THR A:62 , GLU A:67BINDING SITE FOR RESIDUE CA A 150
3AC3SOFTWAREASP A:93 , ASP A:95 , ASN A:97 , TYR A:99 , GLU A:104 , HOH A:160BINDING SITE FOR RESIDUE CA A 151
4AC4SOFTWAREASP A:129 , ASP A:131 , ASP A:133 , GLN A:135 , GLU A:140 , HOH A:154BINDING SITE FOR RESIDUE CA A 152

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2BCX)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2BCX)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2BCX)

(-) PROSITE Motifs  (2, 8)

Asymmetric/Biological Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1EF_HAND_2PS50222 EF-hand calcium-binding domain profile.CALM_CHICK8-43
44-79
81-116
117-149
  4A:7-42
A:43-78
A:80-115
A:116-145
2EF_HAND_1PS00018 EF-hand calcium-binding domain.CALM_CHICK21-33
57-69
94-106
130-142
  4A:20-32
A:56-68
A:93-105
A:129-141

(-) Exons   (0, 0)

(no "Exon" information available for 2BCX)

(-) 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:142
 aligned with CALM_CHICK | P62149 from UniProtKB/Swiss-Prot  Length:149

    Alignment length:142
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144  
          CALM_CHICK      5 LTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMM  146
               SCOP domains d2bcxa_ A: Calmodulin                                                                                                                          SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhhh.......eehhhhhhhhhhhh....hhhhhhhhhhh........eehhhhhhhhhhhhh.....hhhhhhhhhhh.....eehhhhhhhhhhhh....hhhhhhhhhhhhh......eehhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ---EF_HAND_2  PDB: A:7-42 UniProt: 8-43EF_HAND_2  PDB: A:43-78             -EF_HAND_2  PDB: A:80-115            EF_HAND_2  PDB: A:116-145      PROSITE (1)
                PROSITE (2) ----------------EF_HAND_1    -----------------------EF_HAND_1    ------------------------EF_HAND_1    -----------------------EF_HAND_1    ---- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2bcx A    4 LTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDTDSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMM  145
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143  

Chain B from PDB  Type:PROTEIN  Length:27
 aligned with RYR1_RABIT | P11716 from UniProtKB/Swiss-Prot  Length:5037

    Alignment length:27
                                  3623      3633       
          RYR1_RABIT   3614 KSKKAVWHKLLSKQRRRAVVACFRMTP 3640
               SCOP domains --------------------------- SCOP domains
               CATH domains --------------------------- CATH domains
               Pfam domains --------------------------- Pfam domains
         Sec.struct. author ..hhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------- SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                2bcx B 3614 KSKKAVWHKLLSKQRRRAVVACFRMTP 3640
                                  3623      3633       

   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

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2BCX)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2BCX)

(-) Gene Ontology  (59, 61)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CALM_CHICK | P62149)
molecular function
    GO:0031997    N-terminal myristoylation domain binding    Interacting selectively and non-covalently with the N-terminus of a protein that has the potential to be, or has been, modified by N-terminal myristoylation. Binding affinity is typically altered by myristoylation; for example, N-terminal myristoylation of HIV Nef increases its affinity for calmodulin.
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0044325    ion channel binding    Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0017022    myosin binding    Interacting selectively and non-covalently with any part of a myosin complex; myosins are any of a superfamily of molecular motor proteins that bind to actin and use the energy of ATP hydrolysis to generate force and movement along actin filaments.
    GO:0043274    phospholipase binding    Interacting selectively and non-covalently with any phospholipase, enzymes that catalyze of the hydrolysis of a glycerophospholipid.
    GO:0019904    protein domain specific binding    Interacting selectively and non-covalently with a specific domain of a protein.
    GO:0019901    protein kinase binding    Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
    GO:0072542    protein phosphatase activator activity    Increases the activity of a protein phosphatase, an enzyme which catalyzes of the removal of a phosphate group from a protein substrate molecule.
    GO:0031996    thioesterase binding    Interacting selectively and non-covalently with any thioesterase enzyme.
    GO:0031432    titin binding    Interacting selectively and non-covalently with titin, any of a family of giant proteins found in striated and smooth muscle. In striated muscle, single titin molecules span half the sarcomere, with their N- and C-termini in the Z-disc and M-line, respectively.
biological process
    GO:0005513    detection of calcium ion    The series of events in which a calcium ion stimulus is received by a cell and converted into a molecular signal.
    GO:0030801    positive regulation of cyclic nucleotide metabolic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways involving cyclic nucleotides.
    GO:0051343    positive regulation of cyclic-nucleotide phosphodiesterase activity    Any process that activates or increases the frequency, rate or extent of cyclic nucleotide phosphodiesterase activity, the catalysis of the reaction: nucleotide 3',5'-cyclic phosphate + H2O = nucleotide 5'-phosphate.
    GO:0032516    positive regulation of phosphoprotein phosphatase activity    Any process that activates or increases the activity of a phosphoprotein phosphatase.
    GO:0035307    positive regulation of protein dephosphorylation    Any process that activates or increases the frequency, rate or extent of removal of phosphate groups from a protein.
    GO:0060316    positive regulation of ryanodine-sensitive calcium-release channel activity    Any process that increases the activity of a ryanodine-sensitive calcium-release channel. The ryanodine-sensitive calcium-release channel catalyzes the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts.
    GO:0055117    regulation of cardiac muscle contraction    Any process that modulates the frequency, rate or extent of cardiac muscle contraction.
    GO:0032465    regulation of cytokinesis    Any process that modulates the frequency, rate or extent of the division of the cytoplasm of a cell and its separation into two daughter cells.
    GO:0002027    regulation of heart rate    Any process that modulates the frequency or rate of heart contraction.
    GO:0010880    regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum    Any process that modulates the rate, frequency or extent of release of sequestered calcium ion into cytosol by the sarcoplasmic reticulum, the process in which the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol occurs via calcium release channels.
    GO:0051592    response to calcium ion    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a calcium ion stimulus.
    GO:0021762    substantia nigra development    The progression of the substantia nigra over time from its initial formation until its mature state. The substantia nigra is the layer of gray substance that separates the posterior parts of the cerebral peduncles (tegmentum mesencephali) from the anterior parts; it normally includes a posterior compact part with many pigmented cells (pars compacta) and an anterior reticular part whose cells contain little pigment (pars reticularis).
cellular component
    GO:0034704    calcium channel complex    An ion channel complex through which calcium ions pass.
    GO:0005813    centrosome    A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
    GO:0070062    extracellular exosome    A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0030017    sarcomere    The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.
    GO:0005876    spindle microtubule    Any microtubule that is part of a mitotic or meiotic spindle; anchored at one spindle pole.
    GO:0000922    spindle pole    Either of the ends of a spindle, where spindle microtubules are organized; usually contains a microtubule organizing center and accessory molecules, spindle microtubules and astral microtubules.
    GO:0031982    vesicle    Any small, fluid-filled, spherical organelle enclosed by membrane.

Chain B   (RYR1_RABIT | P11716)
molecular function
    GO:0005262    calcium channel activity    Enables the facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0015278    calcium-release channel activity    Enables the transmembrane transfer of a calcium ion from intracellular stores by a channel that opens when a specific intracellular ligand has been bound by the channel complex or one of its constituent parts.
    GO:0005516    calmodulin binding    Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0044325    ion channel binding    Interacting selectively and non-covalently with one or more specific sites on an ion channel, a protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient.
    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:0005219    ryanodine-sensitive calcium-release channel activity    Enables the transmembrane transfer of a calcium ion by a channel that opens when a ryanodine class ligand has been bound by the channel complex or one of its constituent parts.
    GO:0015643    toxic substance binding    Interacting selectively and non-covalently with a toxic substance, a poisonous substance that causes damage to biological systems.
    GO:0005245    voltage-gated calcium channel activity    Enables the transmembrane transfer of a calcium ion by a voltage-gated channel. 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:0070588    calcium ion transmembrane transport    A process in which a calcium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006816    calcium ion transport    The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006874    cellular calcium ion homeostasis    Any process involved in the maintenance of an internal steady state of calcium ions at the level of a cell.
    GO:0071313    cellular response to caffeine    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a caffeine stimulus. Caffeine is an alkaloid found in numerous plant species, where it acts as a natural pesticide that paralyzes and kills certain insects feeding upon them.
    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:0007275    multicellular organism development    The biological process whose specific outcome is the progression of a multicellular organism over time from an initial condition (e.g. a zygote or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
    GO:0006936    muscle contraction    A process in which force is generated within muscle tissue, resulting in a change in muscle geometry. Force generation involves a chemo-mechanical energy conversion step that is carried out by the actin/myosin complex activity, which generates force through ATP hydrolysis.
    GO:0043931    ossification involved in bone maturation    The formation of bone or of a bony substance, or the conversion of fibrous tissue or of cartilage into bone, involved in the progression of the skeleton from its formation to its mature state.
    GO:0003151    outflow tract morphogenesis    The process in which the anatomical structures of the outflow tract are generated and organized. The outflow tract is the portion of the heart through which blood flows into the arteries.
    GO:0014808    release of sequestered calcium ion into cytosol by sarcoplasmic reticulum    The process in which the release of sequestered calcium ion by sarcoplasmic reticulum into cytosol occurs via calcium release channels.
    GO:0048741    skeletal muscle fiber development    The process whose specific outcome is the progression of the skeletal muscle fiber over time, from its formation to the mature structure. Muscle fibers are formed by the maturation of myotubes. They can be classed as slow, intermediate/fast or fast.
    GO:0043588    skin development    The process whose specific outcome is the progression of the skin over time, from its formation to the mature structure. The skin is the external membranous integument of an animal. In vertebrates the skin generally consists of two layers, an outer nonsensitive and nonvascular epidermis (cuticle or skarfskin) composed of cells which are constantly growing and multiplying in the deeper, and being thrown off in the superficial layers, as well as an inner vascular dermis (cutis, corium or true skin) composed mostly of connective tissue.
    GO:0055085    transmembrane transport    The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other
    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: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.
    GO:0016529    sarcoplasmic reticulum    A fine reticular network of membrane-limited elements that pervades the sarcoplasm of a muscle cell; continuous over large portions of the cell and with the nuclear envelope; that part of the endoplasmic reticulum specialized for calcium release, uptake and storage.
    GO:0033017    sarcoplasmic reticulum membrane    The lipid bilayer surrounding the sarcoplasmic reticulum.
    GO:0014802    terminal cisterna    The portion of sarcoplasmic reticulum devoted to calcium ion storage and calcium ion release.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CALM_CHICK | P621491ahr 1aji 1cm1 1cm4 1deg 1k90 1k93 1lvc 1nkf 1qiv 1qiw 1sk6 1up5 2bki 2kz2 2m3s 2o5g 2o60 2vb6 3cln 3gof 3gp2 4bya 5hit
        RYR1_RABIT | P117162xoa 3hsm 3ila 3j8h 3rqr 4ert 4esu 4ett 4etu 4i0y 4i1e 4i2s 4i37 4i3n 4i6i 4i7i 4i8m 4i96 4p9j 4uwa 4uwe 5c30 5gky 5gkz 5gl0 5gl1 5j8v 5t15 5t9m 5t9n 5t9r 5t9s 5t9v 5ta3 5tal 5tam 5tan 5tap 5taq 5tas 5tat 5tau 5tav 5taw 5tax 5tay 5taz 5tb0 5tb1 5tb2 5tb3 5tb4

(-) Related Entries Specified in the PDB File

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