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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2ae2
OXIDOREDUCTASE HEADER
TROPINONE REDUCTASE-II COMPLEXED WITH NADP+ AND PSEUDOTROPINE TITLE
PROTEIN (TROPINONE REDUCTASE-II) 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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NAP B 261
16B GLY
18B SER
19B ARG
20B GLY
21B ILE
22B GLY
39B CYS
40B SER
41B ARG
42B ASN
45B GLU
65B CYS
66B ASP
67B LEU
68B SER
94B ASN
95B ALA
96B GLY
97B ILE
117B ILE
144B ILE
145B SER
146B SER
159B TYR
163B LYS
189B PRO
190B GLY
191B VAL
192B ILE
194B THR
195B SER
196B LEU
197B VAL
NAP A 261
16A GLY
18A SER
19A ARG
20A GLY
21A ILE
22A GLY
39A CYS
40A SER
41A ARG
42A ASN
45A GLU
65A CYS
66A ASP
67A LEU
68A SER
94A ASN
95A ALA
96A GLY
97A ILE
117A ILE
144A ILE
145A SER
146A SER
159A TYR
163A LYS
189A PRO
190A GLY
192A ILE
194A THR
195A SER
196A LEU
197A VAL
PTO B 262
98B VAL
100B TYR
146B SER
147B VAL
148B SER
153B VAL
156B GLU
159B TYR
190B GLY
191B VAL
196B LEU
197B VAL
200B THR
206B GLN
209B ASN
210B LEU
213B LEU
PTO A 262
98A VAL
100A TYR
146A SER
147A VAL
148A SER
153A VAL
156A GLU
159A TYR
190A GLY
191A VAL
196A LEU
197A VAL
200A THR
206A GLN
209A ASN
210A LEU
213A LEU
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):

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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
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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
2ae1 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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NAP NAME: NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
FORMULA: C21 H28 N7 O17 P3
SMILES: NC(=O)c1ccc[n+](c1)C2OC(COP([O-])(=O)OP(O)(=O)OCC3OC(C(OP(O)(O)=O)C3O)[n]4cnc5c(N)ncnc45)C(O)C2O
PTO NAME: PSEUDOTROPINE
FORMULA: C8 H15 N1 O1
SMILES: CN1C2CCC1CC(O)C2
v3.0
January 2008
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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