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(-) Description

Title :  SOLUTION NMR STRUCTURE OF THE CCK2E3
 
Authors :  C. Giragossian, D. F. Mierke
Date :  05 Mar 02  (Deposition) - 28 Jan 03  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A
Keywords :  Hormone/Growth Factor Receptor (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Giragossian, D. F. Mierke
Intermolecular Interactions Between Cholecystokinin-8 And The Third Extracellular Loop Of The Cholecystokinin-2 Receptor
Biochemistry V. 41 4560 2002
PubMed-ID: 11926817  |  Reference-DOI: 10.1021/BI0160009
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - GASTRIN/CHOLECYSTOKININ TYPE B RECEPTOR
    ChainsA
    EngineeredYES
    FragmentEXTRACELLULAR DOMAIN, RESIDUES 352-379
    Other DetailsTHE PEPTIDE WAS SYNTHESIZED USING SOLID PHASE PEPTIDE SYNTHESIS. THE SEQUENCE OCCURS NATURALLY IN HOMO SAPIENS (HUMANS).
    SyntheticYES

 Structural Features

(-) Chains, Units

  
NMR Structure 

Summary Information (see also Sequences/Alignments below)

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

NMR Structure (2, 2)
No.NameCountTypeFull Name
1ACE1Mod. Amino AcidACETYL GROUP
2NH21Mod. Amino AcidAMINO GROUP

(-) Sites  (2, 2)

NMR Structure (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETRP A:5BINDING SITE FOR RESIDUE ACE A 1
2AC2SOFTWARESER A:29BINDING SITE FOR RESIDUE NH2 A 30

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1L4T)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1L4T)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1L4T)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1L4T)

(-) Exons   (1, 1)

NMR Structure (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1aENST000003346191aENSE00001189183chr11:6280966-6281309344GASR_HUMAN1-51510--
1.3bENST000003346193bENSE00001252585chr11:6290899-6291150252GASR_HUMAN51-135850--
1.3dENST000003346193dENSE00001101933chr11:6291318-6291567250GASR_HUMAN135-218840--
1.4aENST000003346194aENSE00001189179chr11:6291876-6292033158GASR_HUMAN218-271540--
1.4fENST000003346194fENSE00001332725chr11:6292241-62933571117GASR_HUMAN271-4471771A:1-3030

(-) Sequences/Alignments

NMR Structure
   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:30
 aligned with GASR_HUMAN | P32239 from UniProtKB/Swiss-Prot  Length:447

    Alignment length:30
                                   360       370       380
           GASR_HUMAN   351 SANTWRAFDGPGAHRALSGAPISFIHLLSY 380
               SCOP domains d1l4ta_ A:                     SCOP domains
               CATH domains ------------------------------ CATH domains
               Pfam domains -7tm_1-1l4tA01 A:2-29        - Pfam domains
         Sec.struct. author .hhhhhhhh..hhhhhhhh.hhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------ PROSITE
               Transcript 1 Exon 1.4f  PDB: A:1-30         Transcript 1
                 1l4t A   1 xANTWRAFDGPGAHRALSGAPISFIHLLSx  30
                            |       10        20        30
                            |                           30-NH2
                            1-ACE                         

   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)

NMR Structure
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1L4T)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: GPCR_A (90)

(-) Gene Ontology  (27, 27)

NMR Structure(hide GO term definitions)
Chain A   (GASR_HUMAN | P32239)
molecular function
    GO:0046935    1-phosphatidylinositol-3-kinase regulator activity    Modulates the activity of the enzyme 1-phosphatidylinositol-3-kinase activity.
    GO:0004930    G-protein coupled receptor activity    Combining with an extracellular signal and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
    GO:0004951    cholecystokinin receptor activity    Combining with cholecystokinin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity. Cholecystokinin can act as a neuropeptide or as a gastrointestinal hormone.
    GO:0015054    gastrin receptor activity    Combining with gastrin and transmitting the signal across the membrane by activating an associated G-protein to initiate a change in cell activity.
    GO:0004435    phosphatidylinositol phospholipase C activity    Catalysis of the reaction: 1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H(2)O = 1,2-diacylglycerol + 1D-myo-inositol 1,4,5-trisphosphate + H(+).
    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:0004871    signal transducer activity    Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
    GO:0031741    type B gastrin/cholecystokinin receptor binding    Interacting selectively and non-covalently with a type B gastrin/cholecystokinin receptor.
biological process
    GO:0007186    G-protein coupled receptor signaling pathway    A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
    GO:0008283    cell proliferation    The multiplication or reproduction of cells, resulting in the expansion of a cell population.
    GO:0007166    cell surface receptor signaling pathway    A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0038188    cholecystokinin signaling pathway    The series of molecular signals generated as a consequence of cholecystokinin binding to a receptor on the surface of the cell, and proceeding with the activated receptor transmitting the signal to a heterotrimeric G-protein complex to initiate a change in cell activity. Ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0007586    digestion    The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
    GO:0048565    digestive tract development    The process whose specific outcome is the progression of the digestive tract over time, from its formation to the mature structure. The digestive tract is the anatomical structure through which food passes and is processed.
    GO:0007631    feeding behavior    Behavior associated with the intake of food.
    GO:0001696    gastric acid secretion    The regulated release of gastric acid (hydrochloric acid) by parietal or oxyntic cells during digestion.
    GO:0048732    gland development    The process whose specific outcome is the progression of a gland over time, from its formation to the mature structure. A gland is an organ specialised for secretion.
    GO:0007200    phospholipase C-activating G-protein coupled receptor signaling pathway    The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand, where the pathway proceeds with activation of phospholipase C (PLC) and a subsequent increase in the concentration of inositol trisphosphate (IP3) and diacylglycerol (DAG).
    GO:0008284    positive regulation of cell proliferation    Any process that activates or increases the rate or extent of cell proliferation.
    GO:0007204    positive regulation of cytosolic calcium ion concentration    Any process that increases the concentration of calcium ions in the cytosol.
    GO:0043551    regulation of phosphatidylinositol 3-kinase activity    Any process that modulates the frequency, rate or extent of phosphatidylinositol 3-kinase activity, the catalysis of the transfer of a phosphate group, usually from ATP, to an inositol lipid at the 3' position of the inositol ring.
    GO:0007600    sensory perception    The series of events required for an organism to receive a sensory stimulus, convert it to a molecular signal, and recognize and characterize the signal. This is a neurological process.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
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:0005887    integral component of plasma membrane    The component of the plasma 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: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.

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