1CRN

WATER STRUCTURE OF A HYDROPHOBIC PROTEIN AT ATOMIC RESOLUTION. PENTAGON RINGS OF WATER MOLECULES IN CRYSTALS OF CRAMBIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Water structure of a hydrophobic protein at atomic resolution: Pentagon rings of water molecules in crystals of crambin.

Teeter, M.M.

(1984) Proc.Natl.Acad.Sci.Usa 81: 6014-6018


  • PubMed Abstract: 
  • The water structure has been analyzed for a model of the protein crambin refined against 0.945-A x-ray diffraction data. Crystals contain 32% solvent by volume, and 77% of the solvent molecules have been located-i.e., 2 ethanol molecules and 64 water ...

    The water structure has been analyzed for a model of the protein crambin refined against 0.945-A x-ray diffraction data. Crystals contain 32% solvent by volume, and 77% of the solvent molecules have been located-i.e., 2 ethanol molecules and 64 water molecules with 10-14 alternate positions. Many water oxygen atoms found form chains between polar groups on the surface of the protein. However, a cluster of pentagonal arrays made up of 16 water molecules sits at a hydrophobic, intermolecular cleft and forms a cap around the methyl group of leucine-18. Several waters in the cluster are hydrogen-bonded directly to the protein. Additional closed circular arrays, which include both protein atoms and other water oxygen atoms, form next to the central cluster. This water array stretches in the b lattice direction between groups of three ionic side chains.


    Related Citations: 
    • Highly Ordered Crystals of the Plant Seed Protein Crambin
      Teeter, M.M.,Hendrickson, W.A.
      (1979) J.Mol.Biol. 127: 219
    • Structure of the Hydrophobic Protein Crambin Determined Directly from the Anomalous Scattering of Sulphur
      Hendrickson, W.A.,Teeter, M.M.
      (1981) Nature 290: 107


    Organizational Affiliation

    Department of Chemistry, Boston University, 685 Commonwealth Avenue, Boston, MA 02215.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CRAMBIN
A
46Crambe hispanica subsp. abyssinicaGene Names: THI2
Find proteins for P01542 (Crambe hispanica subsp. abyssinica)
Go to UniProtKB:  P01542
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 40.960α = 90.00
b = 18.650β = 90.77
c = 22.520γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1981-07-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-07-11
    Type: Other
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other