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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1fp5
IMMUNE SYSTEM HEADER
CRYSTAL STRUCTURE ANALYSIS OF THE HUMAN IGE-FC CEPSILON3- CEPSILON4 FRAGMENT. TITLE
IGE HEAVY CHAIN EPSILON-1 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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331 SER
332 ASN
333 PRO
334 ARG
335 GLY
336 VAL
337 SER
339 TYR
341 SER
359 LEU
361 VAL
362 ASP
364 ALA
365 PRO
366 SER
367 LYS
368 GLY
390 GLU
392 GLN
393 ARG
394 ASN
396 THR
398 THR
419 ARG
422 HIS
423 PRO
424 HIS
425 LEU
427 ARG
428 ALA
430 MET
494 GLN
496 ARG
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
1f6a MANV_696 NAGV_695 NAGV_694 39 87 Details
MANO_244 NAGO_243 NAGO_242 MANO_246 MANO_245 61 105
MANU_696 MANU_699 NAGU_695 MANU_697 NAGU_694 MANU_698 72 104
CPSY_101 CPSZ_105 CPSa_101 CPSa_102 CPSY_102 CPSa_104 CPSa_105 CPSZ_101 CPSY_103 CPSZ_103 CPSY_105 CPSZ_102 CPSY_104 CPSa_103 CPSZ_104 438 926
MANS_696 NAGS_694 MANS_699 NAGS_695 MANS_698 MANS_697 72 108
MANN_244 MANN_246 NAGN_243 MANN_245 NAGN_242 61 109
MANW_696 NAGW_695 NAGW_694 39 93
MANT_696 MANT_697 NAGT_695 MANT_699 NAGT_694 MANT_698 72 114
MANM_244 NAGM_242 MANM_246 NAGM_243 MANM_245 61 107
MANX_696 NAGX_694 NAGX_695 39 86
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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