university lille north of france LigASite database of binding sites
apo-structureHelp

PDB ID and HEADER, TITLE and COMPND records of the PDB file.

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2fw7
LYASE HEADER
STRUCTURE OF PURE (N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE MUTASE) H59N FROM THE ACIDOPHILIC BACTERIUM ACETOBACTER ACETI, AT PH 8 TITLE
N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE MUTASE COMPND
Illustration of Binding SiteHelp

Figure highlighting the binding site residues. Figures were drawn with Molscript (7) and rendered with Raster3D (8). PISA coordinates (3) are used when available (all entries except NMR).

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Contacting ResiduesHelp

List of binding site residues detected in this protein.

Column 1 gives the position, coloured on a yellow-to-red scale depending on the fraction of corresponding holo-structures where the residue is in contact with a ligand.
Column 2 gives the 3-letter amino acid code, coloured according to physico-chemical type.

Chain ID's of residues are not mentioned in this page because all chains in the apo-structure refer to the same protein.

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29 GLY
30 SER
32 SER
33 ASP
56 VAL
57 SER
58 ALA
59 ASN
60 ARG
84 ALA
85 GLY
86 GLY
87 ALA
88 ALA
89 HIS
90 LEU
107 VAL
109 SER
123 GLN
125 PRO
126 GLY
138 SER
External LinksHelp

PDB The Protein Data Bank
CSA Catalytic Site Atlas
PDBSum Overview of the macromolecular structure
CATH Protein Structure Classification
Scop Structural Classification of Proteins
Pfam Protein Families and Domains
UniProt Universal Protein Resource

LIGPLOT (only on holo-pages) is hosted at the EBI.

The LigPlot Jmol links point directly to the Jmol visualisation interface provided on the PDBSum page.

Note that due to different software used, the atomic contacts of LigPlot and LigASite do not necessarily correspond.

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Links to external databases:

Download FilesHelp

Several files are provided for download:

• The XML file defining the residue-ligand contacts; this file contains data on the apo and all holo-structures.
• The XML Schema file defining the semantics of the XML file
• 3D coordinates of the structure used in constructing LigASite (PISA structure file whenever available, PDB file otherwise.
• 3D coordinates of the combined binding residues in the apo structure
• 3D coordinates of the binding residues of the holo structure (only on the holo page)

Coordinate files are in PDB format.

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holo-structuresHelp

Table describing the holo-structures and ligands used to define the binding sites.

Column 1 gives the PDB ID of the holo-structure.
Column 2 gives the unique ID of the ligand; a space-separated list of HET-groups that constitute the ligand (see Methods). Each HET-group in the ligand is uniquely identified by a string in which the first four characters are the three-letter HET ID from the PDB file followed by the chain ID from the PISA file, and the last four characters are the residue sequence number from the PDB file.
Column 3 gives the number of atoms in each ligand.
Column 4 gives the number of protein-ligand inter-atomic contacts.

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pdb ID Ligand Unique ID #atoms #contacts
2fwp ICRV1001 22 81 Details
ICRZ1001 22 80
ICRJ1001 22 80
ICRF1001 22 81
ICRN1001 22 80
ICRB1001 22 82
ICRD1001 22 80
ICRR1001 22 82
v9.7
April 2012
Interdisciplinary Research Institute, Computational Biology, Villeneuve d'Ascq, France
University College London, Biomolecular Structure and Modelling Unit, London, UK
Hospital for Sick Children and University of Toronto, Structural Biology and Biochemistry Program, Toronto, Canada
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