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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1xld
ISOMERASE(INTRAMOLECULAR OXIDOREDUCTSE) HEADER
MECHANISM FOR ALDOSE-KETOSE INTERCONVERSION BY D-XYLOSE ISOMERASE INVOLVING RING OPENING FOLLOWED BY A 1,2-HYDRIDE SHIFT TITLE
D-XYLOSE ISOMERASE 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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XLS D 400
15D TRP
25A PHE
53D HIS
87D MET
89D THR
90D THR
93D PHE
134D VAL
136D TRP
180D GLU
182D LYS
214D ASN
216D GLU
219D HIS
244D ASP
254D ASP
256D ASP
292D ASP
294D LYS
XLS A 400
15A TRP
25D PHE
53A HIS
87A MET
89A THR
90A THR
93A PHE
134A VAL
136A TRP
180A GLU
182A LYS
214A ASN
216A GLU
219A HIS
244A ASP
254A ASP
256A ASP
292A ASP
294A LYS
XLS B 400
15B TRP
25C PHE
53B HIS
87B MET
89B THR
90B THR
93B PHE
134B VAL
136B TRP
180B GLU
182B LYS
214B ASN
216B GLU
219B HIS
244B ASP
254B ASP
256B ASP
292B ASP
294B LYS
XLS C 400
15C TRP
25B PHE
53C HIS
89C THR
90C THR
93C PHE
134C VAL
136C TRP
180C GLU
182C LYS
216C GLU
219C HIS
244C ASP
254C ASP
256C ASP
292C ASP
294C LYS
MN A 399
180A GLU
216A GLU
244A ASP
292A ASP
MN D 399
180D GLU
216D GLU
244D ASP
292D ASP
MN C 399
180C GLU
216C GLU
244C ASP
292C ASP
MN B 399
180B GLU
216B GLU
244B ASP
292B ASP
MN A 398
216A GLU
219A HIS
254A ASP
256A ASP
MN D 398
216D GLU
219D HIS
254D ASP
256D ASP
292D ASP
MN C 398
216C GLU
219C HIS
254C ASP
256C ASP
MN B 398
216B GLU
219B HIS
254B ASP
256B ASP
292B ASP
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).

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apo-structure
pdb ID
1xla Details
other holo-structures
pdb ID Ligand Unique ID
1xli GLTA_400 _MNA_398 _MNA_399 Details
GLTD_400 _MND_399 _MND_398
GLTC_400 _MNC_399 _MNC_398
GLTB_400 _MNB_399 _MNB_398
1xlf GCOA_400 _MNA_399 Details
GCOD_400 _MND_399
GCOB_400 _MNB_399
GCOC_400 _MNC_399
1xlj XYLA_400 _MNA_399 Details
1xlc XLSD_400 _MGD_399 Details
XLSB_400 _MGB_399
1die DNJA_400 _MGA_399 Details
DNJC_400 _MGC_399
1xlg XLSD_400 _ALD_399 _MGD_398 Details
XLSB_400 _MGB_398 _ALB_399
1did DIGA_400 _MNA_399 Details
DIGC_400 _MNC_399
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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XLS NAME: D-XYLOSE (LINEAR FORM)
FORMULA: C5 H10 O5
SMILES: OCC(O)C(O)C(O)C=O
MN NAME: MANGANESE (II) ION
FORMULA: MN1
SMILES: [Mn++]
v6.0
October 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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