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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3fws
TRANSCRIPTION HEADER
CRYSTAL STRUCTURE OF THE CBS DOMAINS FROM THE BACILLUS SUBTILIS CCPN REPRESSOR COMPLEXED WITH APPNP, PHOSPHATE AND MAGNESIUM IONS TITLE
YQZB 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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ANP L 221
107O ASP
108O VAL
109O GLY
110J THR
112J PHE
123J VAL
125J SER
126O ARG
127J LYS
128J ASP
131J ARG
149J THR
153J ASN
154J ILE
155J THR
174J GLN
175J ILE
176J ASP
177J ALA
178J LEU
179J PRO
196J LYS
MG N 224
107O ASP
174J GLN
175J ILE
176J ASP
196J LYS
ANP H 221
107A ASP
108A VAL
109A GLY
110F THR
123F VAL
125F SER
126A ARG
127F LYS
128F ASP
149F THR
153F ASN
154F ILE
155F THR
174F GLN
175F ILE
176F ASP
177F ALA
178F LEU
179F PRO
196F LYS
ANP Q 221
107J ASP
108J VAL
109J GLY
110O THR
123O VAL
125O SER
126J ARG
127O LYS
128O ASP
149O THR
153O ASN
154O ILE
155O THR
174O GLN
175O ILE
176O ASP
177O ALA
178O LEU
179O PRO
196O LYS
ANP C 221
107F ASP
108F VAL
109F GLY
110A THR
112A PHE
123A VAL
125A SER
126F ARG
127A LYS
128A ASP
131A ARG
149A THR
153A ASN
154A ILE
155A THR
174A GLN
175A ILE
176A ASP
177A ALA
178A LEU
179A PRO
196A LYS
MG E 224
107F ASP
174A GLN
175A ILE
176A ASP
196A LYS
MG M 223
109J GLY
110J THR
125J SER
126J ARG
176J ASP
MG I 223
109F GLY
110F THR
125F SER
126F ARG
176F ASP
MG R 223
109O GLY
110O THR
125O SER
126O ARG
176O ASP
MG D 223
109A GLY
110A THR
125A SER
126A ARG
176A 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):

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
3fv6 Details
other holo-structures
pdb ID Ligand Unique ID
3fwr ADPH_221 Details
ADPF_221
ADPB_221
ADPD_221
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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ANP NAME: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
FORMULA: C10 H17 N6 O12 P3
SMILES: Nc1ncnc2[n](cnc12)C3OC(COP(O)(=O)OP(O)(=O)NP(O)(O)=O)C(O)C3O
MG NAME: MAGNESIUM ION
FORMULA: MG1
SMILES: [Mg++]
v9.7
April 2012
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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