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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2b99
TRANSFERASE HEADER
CRYSTAL STRUCTURE OF AN ARCHAEAL PENTAMERIC RIBOFLAVIN SYNTHASE COMPLEX WITH A SUBSTRATE ANALOG INHIBITOR TITLE
RIBOFLAVIN SYNTHASE 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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RDL F1207
10E THR
12E PHE
40E PRO
41E GLY
42E ILE
43E LYS
44E ASP
66E MET
67E PRO
68E GLY
72E LYS
73E ASP
76E CYS
77E ALA
95A ILE
96A ILE
97A GLU
122A HIS
RDL F1210
10B THR
12B PHE
40B PRO
41B GLY
42B ILE
43B LYS
44B ASP
66B MET
67B PRO
68B GLY
72B LYS
73B ASP
76B CYS
77B ALA
95D ILE
96D ILE
97D GLU
122D HIS
RDL F1205
10A THR
12A PHE
40A PRO
41A GLY
42A ILE
43A LYS
44A ASP
66A MET
67A PRO
68A GLY
72A LYS
73A ASP
76A CYS
77A ALA
96B ILE
97B GLU
122B HIS
RDL F1203
10D THR
12D PHE
40D PRO
41D GLY
42D ILE
43D LYS
44D ASP
66D MET
67D PRO
68D GLY
72D LYS
73D ASP
76D CYS
77D ALA
95C ILE
96C ILE
97C GLU
122C HIS
146C GLN
RDL F1201
10C THR
12C PHE
40C PRO
41C GLY
42C ILE
43C LYS
44C ASP
66C MET
67C PRO
68C GLY
72C LYS
73C ASP
76C CYS
95E ILE
96E ILE
97E GLU
122E HIS
146E GLN
RDL F1208
12E PHE
43E LYS
68E GLY
69E LYS
70E ALA
72E LYS
73E ASP
97A GLU
99A PHE
101A HIS
104A GLU
118A ARG
122A HIS
145A ARG
146A GLN
RDL F1209
12B PHE
43B LYS
68B GLY
69B LYS
70B ALA
72B LYS
73B ASP
76B CYS
97D GLU
98D VAL
99D PHE
101D HIS
102B GLU
104D GLU
118D ARG
122D HIS
RDL F1206
12A PHE
43A LYS
70A ALA
72A LYS
73A ASP
76A CYS
97B GLU
99B PHE
101B HIS
104B GLU
118B ARG
122B HIS
RDL F1204
12D PHE
43D LYS
69D LYS
70D ALA
72D LYS
73D ASP
76D CYS
97C GLU
98C VAL
99C PHE
101C HIS
104C GLU
118C ARG
122C HIS
145C ARG
146C GLN
148C PHE
RDL F1202
12C PHE
43C LYS
68C GLY
69C LYS
70C ALA
72C LYS
73C ASP
97E GLU
98E VAL
99E PHE
101E HIS
102C GLU
104E GLU
118E ARG
122E HIS
145E ARG
146E GLN
148E PHE
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):

» 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.

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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
2b98 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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RDL NAME: 6,7-DIOXO-5H-8-RIBITYLAMINOLUMAZINE
FORMULA: C11 H14 N4 O8
SMILES: OCC(O)C(O)C(O)CN1C(=O)C(=O)NC2=C1NC(=O)NC2=O
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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