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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1ur8
HYDROLASE HEADER
INTERACTIONS OF A FAMILY 18 CHITINASE WITH THE DESIGNED INHIBITOR HM508, AND ITS DEGRADATION PRODUCT, CHITOBIONO- DELTA-LACTONE TITLE
CHITINASE B 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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GDL B2502
10B TYR
51B PHE
97B TRP
142B ASP
144B GLU
145B TYR
184B ALA
212B MET
214B TYR
215B ASP
292B TYR
294B ARG
401B MET
403B TRP
GDL A2502
10A TYR
51A PHE
97A TRP
142A ASP
144A GLU
184A ALA
212A MET
214A TYR
215A ASP
292A TYR
294A ARG
403A TRP
NAG B2501
12B PHE
51B PHE
95B GLY
96B GLY
97B TRP
98B TYR
99B TYR
292B TYR
294B ARG
339B ILE
403B TRP
404B HIS
407B GLN
NAG A2501
12A PHE
51A PHE
95A GLY
96A GLY
97A TRP
98A TYR
99A TYR
292A TYR
294A ARG
339A ILE
403A TRP
404A HIS
407A GLN
SO4 B1510
97B TRP
220B TRP
294B ARG
316B ASP
336B ASP
339B 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):

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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
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
1e15 Details
other holo-structures
pdb ID Ligand Unique ID
1w1t CHQA1513 CHQA1514 GOLA1500 GOLA1509 GOLA1508 Details
GOLB1500 GOLB1506
CHQB1512 GOLB1507 CHQB1513
1o6i ARGB1520 DPRB1519 GOLB1515 GOLB1508 GOLB1512 GOLB1510 GOLB1513 GOLA1499 Details
GOLA1498 GOLA1512 GOLB1500
ARGA1517 DPRA1516 GOLA1511
1w1p GIOA1518 GOLA1514 GOLA1510 Details
1w1y TYPA1507 TYPA1509 TYPA1508 Details
TYPB1506 TYPB1507 TYPB1508
GOLB1503 GOLB1504
1e6r AMIB1502 NAAB1500 NAAB1501 Details
AMIA1501 NAAA1500 NAAA1499
1w1v ALJB1513 GOLB1507 GOLB1508 GOLB1512 GOLB1500 GOLB1511 GOLB1510 Details
ALJA1520 GOLA1517 GOLA1509 GOLA1516
GOLA1500 GOLA1506
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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GDL NAME: 2-ACETAMIDO-2-DEOXY-D-GLUCONO-1,5-LACTONE
FORMULA: C8 H13 N1 O6
SMILES: CC(=O)NC1C(O)C(O)C(CO)OC1=O
SO4 NAME: SULFATE ION
FORMULA: O4 S1
SMILES: [O-]S([O-])(=O)=O
NAG NAME: N-ACETYL-D-GLUCOSAMINE
FORMULA: C8 H15 N1 O6
SMILES: CC(=O)NC1C(O)OC(CO)C(O)C1O
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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