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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3prs
HYDROLASE/HYDROLASE INHIBITOR HEADER
ENDOTHIAPEPSIN IN COMPLEX WITH RITONAVIR TITLE
ENDOTHIAPEPSIN 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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RIT A1001
10A ILE
11A ASP
15A ASP
16A ALA
33A ASP
37A GLY
38A SER
39A SER
40A ASP
78A SER
80A GLY
81A ASP
83A SER
116A PHE
119A ASP
122A ILE
125A LEU
133A LEU
135A THR
194A PHE
221A GLY
223A THR
226A TYR
300A ILE
302A ILE
304A ILE
1PE A2001
15A ASP
81A ASP
223A THR
224A LEU
226A TYR
248A VAL
249A GLY
280A PHE
282A PRO
283A ILE
291A PHE
DMS A5001
81A ASP
115A SER
116A PHE
119A ASP
122A ILE
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
4ape Details
other holo-structures
pdb ID Ligand Unique ID
1epp DCIE_333 STAE_332 MTFE_334 LYSE_331 PHEE_330 MASE_329 Details
2v00 ACTA1335 V15A1336 GOLA1332 Details
ACTA1334 V15A1336 GOLA1332
3q6y DMSA4001 S47A5001 Details
3pww ROCA1001 Details
3pb5 F63A1001 Details
4er1 BNAB___1 Details
1e82 HFAB___2 SMCB___3 PCHC___4 MRMB___1 Details
3psy PG4A4001 RB9A1001 Details
DMSA2001 PG4A4001 RB9A1001
1eed BOCD___4 FOGC___3 CHSB___1 Details
3pgi F41A2001 Details
3pm4 F5NA2001 Details
3pi0 DMSA4001 F91A2001 Details
3pmu F7LA2001 Details
3pmy 41LA2001 Details
1od1 DPHB_401 TSMB_400 Details
3pbz DMSA4001 F02A1001 Details
1e81 CPYC___4 SMCB___3 HFAB___2 MRMB___1 Details
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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1PE NAME: PENTAETHYLENE GLYCOL
FORMULA: C10 H22 O6
SMILES: OCCOCCOCCOCCOCCO
RIT NAME: RITONAVIR
FORMULA: C37 H48 N6 O5 S2
SMILES: CC(C)C(NC(=O)N(C)Cc1csc(n1)C(C)C)C(=O)NC(CC(O)C(Cc2ccccc2)NC(=O)OCc3scnc3)Cc4ccccc4
DMS NAME: DIMETHYL SULFOXIDE
FORMULA: C2 H6 O1 S1
SMILES: CS(C)=O
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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