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(-) Description

Title :  ANTIBIOTIC ACTIVITY AND STRUCTURAL ANALYSIS OF A SCORPION-DERIVED ANTIMICROBIAL PEPTIDE ISCT AND ITS ANALOGS
 
Authors :  K. Lee, S. Y. Shin, K. Kim, S. S. Lim, K. S. Hahm, Y. Kim
Date :  02 May 04  (Deposition) - 19 Oct 04  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (20x)
Keywords :  Coil-Helix, Antibiotic (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  K. Lee, S. Y. Shin, K. Kim, S. S. Lim, K. S. Hahm, Y. Kim
Antibiotic Activity And Structural Analysis Of The Scorpion-Derived Antimicrobial Peptide Isct And Its Analogs
Biochem. Biophys. Res. Commun. V. 323 712 2004
PubMed-ID: 15369808  |  Reference-DOI: 10.1016/J.BBRC.2004.08.144
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CYTOTOXIC LINEAR PEPTIDE ISCT
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Mutation: YES
    Organism Scientific: OPISTHACANTHUS MADAGASCARIENSIS
    Organism Taxid: 167108
    Synonym: ISCT
    Tissue: VENOM

 Structural Features

(-) Chains, Units

  
NMR Structure (20x): 

Summary Information (see also Sequences/Alignments below)

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

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

(-) Sites  (1, 1)

NMR Structure (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:13BINDING SITE FOR RESIDUE NH2 A 14

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1T55)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1T55)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1T55)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1T55)

(-) Exons   (0, 0)

(no "Exon" information available for 1T55)

(-) 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:14
 aligned with NDB41_OPIMA | Q8MMJ7 from UniProtKB/Swiss-Prot  Length:68

    Alignment length:14
                                    33    
           NDB41_OPIMA   24 ILGKIWEGIKSLFG 37
               SCOP domains d1t55a_ A:     SCOP domains
               CATH domains -------------- CATH domains
               Pfam domains -------------- Pfam domains
         Sec.struct. author .......hhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------- SAPs(SNPs)
                    PROSITE -------------- PROSITE
                 Transcript -------------- Transcript
                  1t55 A  1 ILGKIWKPIKKLFx 14
                                    10   |
                                        14-NH2
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
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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  (1, 1)

NMR Structure
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1T55)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1T55)

(-) Gene Ontology  (9, 9)

NMR Structure(hide GO term definitions)
Chain A   (NDB41_OPIMA | Q8MMJ7)
biological process
    GO:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    GO:0042742    defense response to bacterium    Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
    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: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:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    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:0044218    other organism cell membrane    The cell membrane of a secondary organism with which the first organism is interacting.
    GO:0044279    other organism membrane    A membrane of a secondary organism with which the first organism is interacting.

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 Related Entries

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

UniProtKB/Swiss-Prot
        NDB41_OPIMA | Q8MMJ7: 1t51 1t52 1t54

(-) Related Entries Specified in the PDB File

1t51 THE SAME PROTEIN OF WILD TYPE
1t52 THE SAME PROTEIN WITH E7K MUTANT
1t54 THE SAME PROTEIN WITH W6A MUTANT