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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1y2x
SUGAR BINDING PROTEIN HEADER
CRYSTAL STRUCTURE OF THE TETRAGONAL FORM OF THE COMMON EDIBLE MUSHROOM (AGARICUS BISPORUS) LECTIN IN COMPLEX WITH T-ANTIGEN AND N-ACETYLGLUCOSAMINE TITLE
LECTIN 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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GAL F 146
28E TYR
29E ALA
48E SER
49E GLY
NGA G 145
28E TYR
48E SER
49E GLY
72E HIS
73E ASN
74E TYR
98E TYR
107E ARG
GAL L 146
28K TYR
29K ALA
30K ASN
48K SER
49K GLY
NGA M 145
28K TYR
48K SER
49K GLY
72K HIS
73K ASN
74K TYR
98K TYR
107K ARG
GAL B 146
28A TYR
29A ALA
30A ASN
48A SER
NGA D 145
28A TYR
48A SER
49A GLY
72A HIS
73A ASN
74A TYR
98A TYR
107A ARG
GAL I 146
28H TYR
29H ALA
48H SER
49H GLY
NGA J 145
28H TYR
48H SER
49H GLY
72H HIS
73H ASN
74H TYR
98H TYR
107H ARG
SER E 147
72E HIS
73E ASN
SER K 147
72K HIS
73K ASN
SER A 147
72A HIS
73A ASN
74A TYR
SER H 147
72H HIS
73H ASN
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
1y2t Details
other holo-structures
pdb ID Ligand Unique ID
1y2v GALB_145 SERA_146 NGAC_144 Details
GALE_145 SERD_146 NGAF_144
GALK_145 SERJ_146 NGAL_144
GALH_145 SERG_146 NGAI_144
1y2w GALF_145 NGAG_144 SERE_146 Details
GALM_145 NGAN_144 SERL_146
GALI_145 SERH_146 NGAK_144
GALB_145 SERA_146 NGAD_144
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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GAL NAME: D-GALACTOSE
FORMULA: C6 H12 O6
SMILES: OCC1OC(O)C(O)C(O)C1O
NGA NAME: N-ACETYL-D-GALACTOSAMINE
FORMULA: C8 H15 N1 O6
SMILES: CC(=O)NC1C(O)OC(CO)C(O)C1O
SER NAME: L-Serine
FORMULA: C3 H6 N1 O3
SMILES: NC(CO)C(O)=OSERINE
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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