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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2hk1
ISOMERASE HEADER
CRYSTAL STRUCTURE OF D-PSICOSE 3-EPIMERASE (DPEASE) IN THE PRESENCE OF D-FRUCTOSE TITLE
D-PSICOSE 3-EPIMERASE 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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FRU I1301
6G TYR
14G TRP
65G GLY
66G ILE
67G GLY
105G GLY
106G GLY
107G ALA
112G TRP
150G GLU
152G LEU
156G GLU
183G ASP
186G HIS
209G HIS
215G ARG
244G GLU
246G PHE
257G ILE
FRU F1303
6D TYR
14D TRP
65D GLY
66D ILE
67D GLY
105D GLY
106D GLY
107D ALA
112D TRP
150D GLU
152D LEU
156D GLU
183D ASP
186D HIS
209D HIS
215D ARG
244D GLU
246D PHE
257D ILE
FRU C1300
6A TYR
14A TRP
65A GLY
66A ILE
67A GLY
106A GLY
107A ALA
112A TRP
150A GLU
152A LEU
156A GLU
183A ASP
186A HIS
209A HIS
215A ARG
244A GLU
246A PHE
257A ILE
MN H1002
150G GLU
183G ASP
209G HIS
244G GLU
MN E1001
150D GLU
183D ASP
209D HIS
244D GLU
MN B1004
150A GLU
183A ASP
209A HIS
244A GLU
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
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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
2hk0 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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FRU NAME: FRUCTOSE
FORMULA: C6 H12 O6
SMILES: OCC1OC(O)(CO)C(O)C1O
MN NAME: MANGANESE (II) ION
FORMULA: MN1
SMILES: [Mn++]
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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