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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2igb
TRANSFERASE HEADER
CRYSTAL STRUCTURE OF PYRR, THE REGULATOR OF THE PYRIMIDINE BIOSYNTHETIC OPERON IN BACILLUS CALDOLYTICUS, UMP-BOUND FORM TITLE
PYRR BIFUNCTIONAL PROTEIN 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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U5P C 351
39C LYS
84C PRO
104C ASP
105C ASP
106C VAL
107C LEU
108C PHE
109C THR
110C GLY
111C ARG
112C THR
113C VAL
137C ARG
160C LEU
161C ILE
163C VAL
U5P B 352
39B LYS
84B PRO
104B ASP
105B ASP
106B VAL
107B LEU
108B PHE
109B THR
110B GLY
111B ARG
112B THR
113B VAL
137B ARG
160B LEU
161B ILE
163B VAL
U5P D 352
39D LYS
70D LEU
84D PRO
104D ASP
105D ASP
106D VAL
107D LEU
108D PHE
109D THR
110D GLY
111D ARG
112D THR
113D VAL
137D ARG
160D LEU
161D ILE
163D VAL
U5P A 351
39A LYS
84A PRO
104A ASP
105A ASP
106A VAL
107A LEU
108A PHE
109A THR
110A GLY
111A ARG
112A THR
113A VAL
137A ARG
160A LEU
161A ILE
163A VAL
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
1non Details
other holo-structures
pdb ID Ligand Unique ID
1xz8 3GPM_300 5GPM_200 _MGM_100 Details
U5PQ_400 _MGQ_101
3GPN_300 _MGN_100 5GPN_200
U5PP_400 _MGP_101
U5PO_400 _MGO_101
3GPP_300 5GPP_200 _MGP_100
3GPR_300 _MGR_100 5GPR_200
U5PM_400 _MGM_101
3GPO_300 5GPO_200 _MGO_100
3GPQ_300 5GPQ_200 _MGQ_100
U5PN_400 _MGN_101
U5PR_400 _MGR_101
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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U5P NAME: URIDINE-5'-MONOPHOSPHATE
FORMULA: C9 H13 N2 O9 P1
SMILES: OC1C(O)C(OC1COP(O)(O)=O)N2C=CC(=O)NC2=O
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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