1JOH

THE STRUCTURE OF ANTIAMOEBIN I, A MEMBRANE-ACTIVE PEPTIDE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Observed: 0.156 

wwPDB Validation   3D Report Full Report


This is version 1.6 of the entry. See complete history. 


Literature

The Structure and Function of Antiamoebin I, a Proline-Rich Membrane-Active Polypeptide.

Snook, C.F., Woolley, G.A., Oliva, G., Pattabhi, V., Wood, S.F., Blundell, T.L., Wallace, B.A.

(1998) Structure 6: 783

  • DOI: https://doi.org/10.1016/s0969-2126(98)00079-3
  • Primary Citation of Related Structures:  
    1JOH

  • PubMed Abstract: 

    Antiamoebin is a member of the peptaibol family of polypeptides and has a unique antibiotic activity: it acts as an antiamoebic agent, but does not effectively haemolyze erythrocytes even though it does exhibit membrane-modifying activity.

    • Organizational Affiliation: 

    Department of Crystallography Birkbeck College University of London London, WC1E 7HX, UK.


Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ANTIAMOEBIN I
A, B
17EmericellopsisMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MOH
Query on MOH
Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
G [auth A]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth B],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth B],
Y [auth B]
METHANOL
C H4 O
OKKJLVBELUTLKV-UHFFFAOYSA-N
Modified Residues  3 Unique
IDChains TypeFormula2D DiagramParent
AIB
Query on AIB
A, B
L-PEPTIDE LINKINGC4 H9 N O2ALA
HYP
Query on HYP
A, B
L-PEPTIDE LINKINGC5 H9 N O3PRO
PHL
Query on PHL
A, B
L-PEPTIDE LINKINGC9 H13 N OPHE
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 1
IDChains NameType/Class2D Diagram3D Interactions
PRD_000161
Query on PRD_000161
A, B
Antiamoebin 1Peptaibol / Antibiotic
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.40 Å
  • R-Value Observed: 0.156 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 26.53α = 88.9
b = 28.82β = 96.64
c = 9.06γ = 123.85
Software Package:
Software NamePurpose
SHELXL-93model building
SHELXL-93refinement
SHELXL-93phasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-01-20
    Type: Initial release
  • Version 1.1: 2011-06-14
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-07-27
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary
  • Version 1.4: 2012-12-12
    Changes: Other
  • Version 1.5: 2020-03-04
    Changes: Data collection, Derived calculations, Other, Refinement description, Structure summary
  • Version 1.6: 2024-04-03
    Changes: Data collection, Database references, Derived calculations, Refinement description