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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1rs2
LYASE HEADER
DHNA COMPLEX WITH 8-AMINO-1,3-DIMETHYL-3,7-DIHYDROPURINE-2, 6-DIONE TITLE
DIHYDRONEOPTERIN ALDOLASE 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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209 L1001
5K ILE
16I HIS
17I GLY
18I ALA
19I LEU
22I GLU
48K VAL
51K THR
52K VAL
53K HIS
54K TYR
55K GLY
71I ASN
72I LEU
73I LEU
74I GLU
100I LYS
104I PRO
105I ILE
209 F1001
5E ILE
16A HIS
17A GLY
18A ALA
19A LEU
22A GLU
48E VAL
51E THR
52E VAL
53E HIS
54E TYR
55E GLY
71A ASN
72A LEU
73A LEU
74A GLU
100A LYS
104A PRO
105A 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
1dhn Details
other holo-structures
pdb ID Ligand Unique ID
1rsd PSBJ1001 Details
PSBL1001
PSBN1001
PSBH1001
PSBB1001
PSBD1001
PSBF1001
PSBP1001
1rs4 45PJ1001 Details
45PL1001
45PF1001
45PN1001
45PH1001
45PB1001
45PD1001
45PP1001
2dhn PH2N_122 Details
PH2P_122
PH2J_122
PH2D_122
PH2B_122
PH2H_122
1u68 NPRL1001 Details
NPRJ1001
NPRP1001
NPRH1001
NPRD1001
NPRF1001
NPRB1001
NPRN1001
2nm3 MPUK_131 Details
MPUE_131
MPUN_131
MPUB_131
MPUT_131
MPUW_131
MPUH_131
MPUQ_131
2nm2 NEUF_122 Details
NEUN_322
NEUP_422
NEUB_122
NEUD_222
NEUH_222
NEUL_422
NEUJ_322
1rsi 977L1001 Details
977N1001
977B1001
977P1001
977J1001
977H1001
977F1001
977D1001
1rri A45N1001 Details
A45H1001
A45P1001
A45L1001
A45B1001
A45J1001
A45F1001
A45D1001
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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209 NAME: 8-AMINO-1,3-DIMETHYL-3,7-DIHYDROPURINE-2,6-DIONE
FORMULA: C7 H9 N5 O2
SMILES: CN1C(=O)N(C)c2[nH]c(N)nc2C1=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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