university lille north of france LigASite database of binding sites
apo-structureHelp

PDB ID and HEADER, TITLE and COMPND records of the PDB file.

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1m1z
HYDROLASE HEADER
BETA-LACTAM SYNTHETASE APO ENZYME TITLE
BETA-LACTAM SYNTHETASE COMPND
Illustration of Binding SiteHelp

Figure highlighting the binding site residues. Figures were drawn with Molscript (7) and rendered with Raster3D (8). PISA coordinates (3) are used when available (all entries except NMR).

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Contacting ResiduesHelp

List of binding site residues detected in this protein.

Column 1 gives the position, coloured on a yellow-to-red scale depending on the fraction of corresponding holo-structures where the residue is in contact with a ligand.
Column 2 gives the 3-letter amino acid code, coloured according to physico-chemical type.

Chain ID's of residues are not mentioned in this page because all chains in the apo-structure refer to the same protein.

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247 VAL
248 LEU
249 SER
251 GLY
252 ILE
253 ASP
254 SER
271 VAL
272 SER
273 MET
274 GLY
275 THR
277 THR
278 SER
279 ASN
280 GLU
305 LEU
320 ASP
322 ASP
323 ILE
326 TYR
329 PRO
330 LEU
333 LEU
346 THR
347 GLY
348 TYR
349 GLY
350 ALA
351 ASP
352 ILE
357 MET
358 HIS
373 ASP
376 THR
377 PHE
380 LEU
382 GLU
423 LYS
427 ARG
441 ARG
442 PRO
443 LYS
444 LEU
445 GLY
446 VAL
447 HIS
449 GLY
450 SER
455 SER
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:

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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holo-structuresHelp

Table describing the holo-structures and ligands used to define the binding sites.

Column 1 gives the PDB ID of the holo-structure.
Column 2 gives the unique ID of the ligand; a space-separated list of HET-groups that constitute the ligand (see Methods). Each HET-group in the ligand is uniquely identified by a string in which the first four characters are the three-letter HET ID from the PDB file followed by the chain ID from the PISA file, and the last four characters are the residue sequence number from the PDB file.
Column 3 gives the number of atoms in each ligand.
Column 4 gives the number of protein-ligand inter-atomic contacts.

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pdb ID Ligand Unique ID #atoms #contacts
1mbz GOLC_506 POPC_501 IOTC_502 _MGA_604 _MGA_603 55 239 Details
GOLC_507 _MGB_602 POPC_504 IOTC_503 _MGB_601 55 220
1jgt APCC_802 CMAC_804 48 190 Details
APCC_801 CMAC_803 48 186
1mc1 AMPC_705 _MGB_602 POPC_704 PCXC_706 _MGB_605 50 193 Details
AMPC_702 POPC_701 _MGA_601 PCXC_703 _MGA_603 50 215
1mb9 ATPC_701 _MGA_603 _MGA_604 33 126 Details
ATPC_702 _MGB_602 _MGB_601 33 125
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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