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(-) Description

Title :  CRYSTAL STRUCTURE OF THE DIMERIC IMMUNITY PROTEIN CMI SOLVED BY DIRECT METHODS (ARCIMBOLDO)
 
Authors :  K. Zeth, S. I. Patzer, R. Albrecht, I. Uson, V. Braun
Date :  12 Jan 12  (Deposition) - 25 Jan 12  (Release) - 18 Apr 12  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.89
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (2x)
Keywords :  Immune System, 3D Domain Swap (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  I. Uson, S. I. Patzer, D. D. Dayana Rodriguez, V. Braun, K. Zeth
The Crystal Structure Of The Dimeric Colicin M Immunity
J. Struct. Biol. V. 178 45 2012
PubMed-ID: 22366279  |  Reference-DOI: 10.1016/J.JSB.2012.02.004

(-) Compounds

Molecule 1 - COLICIN-M IMMUNITY PROTEIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Fragment: RESIDUES 44-141
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 83333
    Other Details: CMI CLONED WITHOUT THE N-TERMINAL HYDROPHOBIC HELIX FOR EXPRESSION OF THE PROTEIN IN THE CYTOPLASM
    Strain: K-12
    Synonym: CMI, MICROCIN-M IMMUNITY PROTEIN

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (2x): A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1PO41Ligand/IonPHOSPHATE ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1PO42Ligand/IonPHOSPHATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREARG A:49 , TRP A:53 , GLU A:112 , TYR A:113BINDING SITE FOR RESIDUE PO4 A1116

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:30 -A:106

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

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(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
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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:90
 aligned with IMMM_ECOLX | P18002 from UniProtKB/Swiss-Prot  Length:141

    Alignment length:90
                                    60        70        80        90       100       110       120       130       140
           IMMM_ECOLX    51 KGPACYQVSDEQARTFVKNDYLQRMKRWDNDVQLLGTEIPKITWEKIERSLTDVEDEKTLLVPFKAEGPDGKRMYYGMYHCEEGYVEYAN 140
               SCOP domains ------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh....eeee........hhhhh.eeeeeeeee....eeeeeeeee....eeeee. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------ Transcript
                 4aeq A  26 KGPACYQVSDEQARTFVKNDYLQRMKRWDNDVQLLGTEIPKITWEKIERSLTDVEDEKTLLVPFKAEGPDGKRMYYGMYHCEEGYVEYAN 115
                                    35        45        55        65        75        85        95       105       115
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 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 4AEQ)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4AEQ)

(-) Pfam Domains  (0, 0)

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(-) Gene Ontology  (1, 1)

Asymmetric Unit(hide GO term definitions)
Chain A   (IMMM_ECOLX | P18002)
biological process
    GO:0030153    bacteriocin immunity    A process that mediates resistance to a bacteriocin: any of a heterogeneous group of polypeptide antibiotics that are secreted by certain bacterial strains and are able to kill cells of other susceptible (frequently related) strains after adsorption at specific receptors on the cell surface. They include the colicins, and their mechanisms of action vary.

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 Related Entries

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

UniProtKB/Swiss-Prot
        IMMM_ECOLX | P18002: 2xgl

(-) Related Entries Specified in the PDB File

2xgl THE X-RAY STRUCTURE OF THE ESCHERICHIA COLI COLICIN M IMMUNITY PROTEIN DEMONSTRATES THE PRESENCE OF A DISULPHIDE BRIDGE, WHICH IS FUNCTIONALLY ESSENTIAL