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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1u7g
TRANSPORT PROTEIN HEADER
CRYSTAL STRUCTURE OF AMMONIA CHANNEL AMTB FROM E. COLI TITLE
PROBABLE AMMONIUM TRANSPORTER 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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BOG E 400
31B PHE
35B LEU
193B PHE
245B TRP
249B GLU
252B LEU
253B ARG
257B SER
259B LEU
260B GLY
263B SER
266B ILE
296B LEU
299B VAL
300B THR
303B LYS
309B ASP
313B ASP
314B VAL
317B VAL
BOG D 400
31A PHE
35A LEU
193A PHE
245A TRP
249A GLU
252A LEU
253A ARG
257A SER
259A LEU
260A GLY
263A SER
266A ILE
296A LEU
299A VAL
300A THR
303A LYS
309A ASP
313A ASP
314A VAL
317A VAL
BOG F 400
31C PHE
35C LEU
193C PHE
245C TRP
249C GLU
252C LEU
253C ARG
257C SER
259C LEU
260C GLY
262C CYS
263C SER
266C ILE
296C LEU
299C VAL
300C THR
303C LYS
309C ASP
313C ASP
314C VAL
317C 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
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
1u77 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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BOG NAME: B-OCTYLGLUCOSIDE
FORMULA: C14 H28 O6
SMILES: CCCCCCCCOC1OC(CO)C(O)C(O)C1O
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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