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

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

(click anywhere in this window to remove it)
1k7t
SUGAR BINDING PROTEIN HEADER
CRYSTAL STRUCTURE ANALYSIS OF CROSSLINKED-WGA3/GLCNACBETA1, 6GAL COMPLEX TITLE
AGGLUTININ ISOLECTIN 3 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.

(click anywhere in this window to remove it)
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.

(click anywhere in this window to remove it)
PCA A 1
2A ARG
6B GLN
7B GLY
8B SER
10B MET
22A GLY
23A TYR
24A CYS
PCA B 1
2B ARG
3B CYS
6A GLN
7A GLY
8A SER
10A MET
23B TYR
24B CYS
NAG D 3
43B SER
62B SER
64B TYR
66B HIS
72B GLU
73B TYR
114A SER
115A GLU
GAL D 4
64B TYR
66B HIS
72B GLU
115A 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.

(click anywhere in this window to remove it)

Links to external databases:

LigPlot (hosted at the EBI):

» Jmol
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.

(click anywhere in this window to remove it)
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.

(click anywhere in this window to remove it)
apo-structure
pdb ID
1wgt Details
other holo-structures
pdb ID Ligand Unique ID
1k7v GALD___5 GLCD___6 NAGD___4 Details
PCAA___1 PCAB___1
GALC___2 NAGC___1 GLCC___3 GLCE___3
1k7u NAGC___1 NAGC___2 Details
PCAA___1 PCAB___1
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.

(click anywhere in this window to remove it)
GAL NAME: D-GALACTOSE
FORMULA: C6 H12 O6
SMILES: OCC1OC(O)C(O)C(O)C1O
NAG NAME: N-ACETYL-D-GLUCOSAMINE
FORMULA: C8 H15 N1 O6
SMILES: CC(=O)NC1C(O)OC(CO)C(O)C1O
PCA NAME: pyroglutamic acid
FORMULA: C5 H6 N1 O3
SMILES: OC(=O)C1CCC(=O)N1PYROGLUTAMIC ACID
v4.0
May 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
Script execution time: 0.0889 seconds