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(-) Description

Title :  MELITTIN
 
Authors :  D. Eisenberg, M. Gribskov, T. C. Terwilliger
Date :  04 Oct 90  (Deposition) - 15 Oct 90  (Release) - 16 Nov 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (2x)
Keywords :  Toxin (Hemolytic Polypeptide) (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  M. Gribskov, L. Wesson, D. Eisenberg

To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - MELITTIN
    ChainsA, B
    EngineeredYES
    Organism CommonHONEY BEE
    Organism ScientificAPIS MELLIFERA
    Organism Taxid7460

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (2x)AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

Asymmetric Unit (2, 4)
No.NameCountTypeFull Name
1NH22Mod. Amino AcidAMINO GROUP
2SO42Ligand/IonSULFATE ION
Biological Unit 1 (2, 8)
No.NameCountTypeFull Name
1NH24Mod. Amino AcidAMINO GROUP
2SO44Ligand/IonSULFATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:2 , GLY A:3 , TRP A:19 , ARG B:24BINDING SITE FOR RESIDUE SO4 B 28
2AC2SOFTWAREARG A:24 , ILE B:2 , GLY B:3 , TRP B:19 , LYS B:23 , ARG B:24 , HOH B:31BINDING SITE FOR RESIDUE SO4 B 29

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 4)

Asymmetric Unit (2, 4)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_MEL_APIME_001 *T53SMEL_APIME  ---  ---A/BT10S
2UniProtVAR_MEL_APIME_002 *K64SMEL_APIME  ---  ---A/BK21S
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (2, 8)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_MEL_APIME_001 *T53SMEL_APIME  ---  ---A/BT10S
2UniProtVAR_MEL_APIME_002 *K64SMEL_APIME  ---  ---A/BK21S
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2MLT)

(-) Exons   (0, 0)

(no "Exon" information available for 2MLT)

(-) Sequences/Alignments

Asymmetric 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:27
 aligned with MEL_APIME | P01501 from UniProtKB/Swiss-Prot  Length:70

    Alignment length:27
                                    53        63       
             MEL_APIME   44 GIGAVLKVLTTGLPALISWIKRKRQQG 70
               SCOP domains d2mlta_ A: Mellitin         SCOP domains
               CATH domains --------------------------- CATH domains
               Pfam domains --------------------------- Pfam domains
         Sec.struct. author hhhhhhhhhhh..hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------S----------S------ SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                  2mlt A  1 GIGAVLKVLTTGLPALISWIKRKRQQx 27
                                    10        20      |
                                                     27-NH2

Chain B from PDB  Type:PROTEIN  Length:27
 aligned with MEL_APIME | P01501 from UniProtKB/Swiss-Prot  Length:70

    Alignment length:27
                                    53        63       
             MEL_APIME   44 GIGAVLKVLTTGLPALISWIKRKRQQG 70
               SCOP domains d2mltb_ B: Mellitin         SCOP domains
               CATH domains --------------------------- CATH domains
           Pfam domains (1) Melittin-2mltB01 B:1-26   - Pfam domains (1)
           Pfam domains (2) Melittin-2mltB02 B:1-26   - Pfam domains (2)
         Sec.struct. author hhhhhhhhhhh..hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ---------S----------S------ SAPs(SNPs)
                    PROSITE --------------------------- PROSITE
                 Transcript --------------------------- Transcript
                  2mlt B  1 GIGAVLKVLTTGLPALISWIKRKRQQx 27
                                    10        20      |
                                                     27-NH2

   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, 2)

Asymmetric Unit
(-)
Class: Peptides (792)

(-) CATH Domains  (0, 0)

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

(-) Pfam Domains  (1, 2)

Asymmetric Unit

(-) Gene Ontology  (11, 11)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (MEL_APIME | P01501)
molecular function
    GO:0004860    protein kinase inhibitor activity    Stops, prevents or reduces the activity of a protein kinase, an enzyme which phosphorylates a protein.
biological process
    GO:0019835    cytolysis    The rupture of cell membranes and the loss of cytoplasm.
    GO:0044179    hemolysis in other organism    The cytolytic destruction of red blood cells, with the release of intracellular hemoglobin, in one organism by another.
    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:0006469    negative regulation of protein kinase activity    Any process that stops, prevents, or reduces the frequency, rate or extent of protein kinase activity.
    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
        MEL_APIME | P015011bh1 2mw6 3qrx

(-) Related Entries Specified in the PDB File

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