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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2e0n
TRANSFERASE HEADER
CRYSTAL STRUCTURE OF CBIL IN COMPLEX WITH S- ADENOSYLHOMOCYSTEINE, A METHYLTRANSFERASE INVOLVED IN ANAEROBIC VITAMIN B12 BIOSYNTHESIS TITLE
PRECORRIN-2 C20-METHYLTRANSFERASE 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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SAH A 300
14A PRO
104A VAL
105A GLY
106A ASP
109A PHE
110A TYR
111A SER
134A PRO
135A ALA
136A PHE
179A MET
180A LYS
202A ALA
204A LYS
205A VAL
207A MET
226A TYR
227A PHE
228A SER
229A LEU
SAH B 301
14B PRO
104B VAL
105B GLY
106B ASP
109B PHE
110B TYR
111B SER
134B PRO
135B ALA
136B PHE
179B MET
180B LYS
202B ALA
204B LYS
205B VAL
207B MET
226B TYR
227B PHE
228B SER
229B LEU
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
2e0k 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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SAH NAME: S-ADENOSYL-L-HOMOCYSTEINE
FORMULA: C14 H20 N6 O5 S1
SMILES: NC(CCSCC1OC(C(O)C1O)[n]2cnc3c(N)ncnc23)C(O)=O
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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