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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1u21
HORMONE/GROWTH FACTOR HEADER
TRANSTHYRETIN WITH TETHERED INHIBITOR ON ONE MONOMER. TITLE
TRANSTHYRETIN 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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P2C E 221
13D MET
15D LYS
17D LEU
54D GLU
106B THR
108D ALA
109D ALA
110D LEU
117D SER
119D THR
121D VAL
P2C F 221
13B MET
15B LYS
17B LEU
54B GLU
106D THR
108B ALA
109B ALA
110B LEU
117B SER
119B THR
121B VAL
P2C E 211
13A MET
15C LYS
17C LEU
54C GLU
106A THR
108A ALA
109A ALA
110A LEU
117A SER
118A THR
119A THR
121A VAL
P2C F 211
13C MET
15A LYS
17A LEU
54C GLU
106C THR
108C ALA
109C ALA
110C LEU
117C SER
118C THR
119C THR
121C 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):

» 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
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
1tta Details
other holo-structures
pdb ID Ligand Unique ID
1y1d FHIE3000 FHIF3000 Details
FHIE2000 FHIF2000
1eta T44C_128 T44D_128 Details
2rox T44B_128 T44D_128 Details
T44A_128 T44C_128
2b77 3CAE_239 3CAF_239 Details
3CAE_240 3CAF_240
2g9k NE1E_501 NE1F_501 Details
NE1E_500 NE1F_500
2f8i 205E1002 205F1002 Details
205E1001 205F1001
2f7i 26CE_326 26CF_326 Details
26CE_325 26CF_325
2roy P28A_128 P28C_128 Details
P28B_128 P28D_128
2fbr 44CE_173 44CF_173 Details
1bm7 FLFE_502 FLFF_502 Details
FLFE_501 FLFF_501
1ict T44B_129 T44D_129 Details
T44A_128 T44C_128
1z7j T4AE_128 T4AF_128 Details
T4AE_129 T4AF_129
1tt6 DESE___2 DESF___2 Details
DESE___1 DESF___1
2flm 6CAE_201 6CAF_201 Details
2g5u NEWE_240 NEWF_240 Details
NEWE_239 NEWF_239
1tz8 DESA___1 DESB___1 Details
DESC___1 DESD___1
2gab NE2E_502 NE2F_502 Details
NE2E_501 NE2F_501
2b15 DNFE___2 DNFF___2 Details
DNFE___1 DNFF___1
2b9a FBCE_301 FBCF_301 Details
FBCE_302 FBCF_302
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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P2C NAME: 2-[(3,5-DICHLORO-4-TRIOXIDANYLPHENYL)AMINO]BENZOIC ACID
FORMULA: C13 H9 N1 O5 CL2
SMILES: OOOc1c(Cl)cc(Nc2ccccc2C(O)=O)cc1Cl
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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