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

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

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2j4e
HYDROLASE HEADER
THE ITP COMPLEX OF HUMAN INOSINE TRIPHOSPHATASE TITLE
INOSINE TRIPHOSPHATE PYROPHOSPHATASE COMPND
Illustration of Binding SiteHelp

Figure showing the binding site residues. Ligands are displayed as CPK. Figures were drawn with Molscript (7) and rendered with Raster3D (8). PISA coordinates (3) are used when available (all entries except NMR). Ligands do not appear on the picture when PISA fails to apply symmetry operations to ligand coordinates.

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HETgroup - Residue ContactsHelp

List of binding site residues detected in this holo-structure.

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

The binding residues in this holo structure are listed for each ligand independently, following the ligand's unique ID.

Note that since PISA files are used whenever available, chain identifiers may differ from those in original PDB files.

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POP D1000
13A VAL
14A THR
15A GLY
16A ASN
19A LYS
40A ILE
41A ASP
42A LEU
44A GLU
56A LYS
71A GLU
89A LYS
ITT F1001
13E VAL
14E THR
15E GLY
16E ASN
19E LYS
40E ILE
41E ASP
44E GLU
56E LYS
71E GLU
72E ASP
73E THR
88E ILE
89E LYS
92E LEU
149E PHE
150E GLY
151E TRP
152E ASP
172E LYS
177E HIS
178E ARG
IMP C1001
16A ASN
19A LYS
22A GLU
44A GLU
72A ASP
73A THR
88A ILE
89A LYS
92A LEU
93A GLU
149A PHE
150A GLY
151A TRP
152A ASP
172A LYS
177A HIS
178A ARG
MG B1002
41A ASP
42A LEU
44A GLU
89A LYS
MG G1002
41E ASP
42E LEU
44E GLU
56E LYS
89E LYS
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:

LigPlot (hosted at the EBI):

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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Hide table of related structures
Help

List of related structure, containing both the apo-structure and other holo-structures.

Column 1 gives the PDB ID and column 2 the unique ID of the ligands (holo-structures only).

Clicking the blue 'Hide table of related structures' button removes the entire table.

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apo-structure
pdb ID
2car Details
other holo-structures
pdb ID Ligand Unique ID
none
Ligand ListHelp

Ligands present in this holo structure.

Column 1 shows the ligand HET code
Column 2 shows the name, chemical formula and (non-stereo) SMILES string.

Data in column 2 appears as 'not_found' when it is not present in the file 'pdb2smiles.xml' from www.rcsb.org.

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IMP NAME: inosinic acid
FORMULA: C10 H13 N4 O8 P1
SMILES: OC1C(O)C(OC1COP(O)(O)=O)[n]2cnc3C(=O)NC=Nc23
MG NAME: MAGNESIUM ION
FORMULA: MG1
SMILES: [Mg++]
POP NAME: PYROPHOSPHATE 2-
FORMULA: H2 O7 P2
SMILES: OP([O-])(=O)OP(O)([O-])=O
ITT NAME: not_found
FORMULA: not_found
SMILES: not_found
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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