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

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

(click anywhere in this window to remove it)
1q8j
TRANSFERASE HEADER
COBALAMIN-DEPENDENT METHIONINE SYNTHASE (1-566) FROM THERMOTOGA MARITIMA (CD2+, HCY, METHYLTETRAHYDROFOLATE COMPLEX) TITLE
5-METHYLTETRAHYDROFOLATE S-HOMOCYSTEINE 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.

(click anywhere in this window to remove it)
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.

(click anywhere in this window to remove it)
C2F D 802
320C GLU
321C ARG
323C ASN
325C ALA
326C GLY
327C ARG
358C ASP
360C ASN
390C ASP
411C ASN
412C SER
435C ILE
437C LEU
473C ASP
475C GLY
476C VAL
503C THR
505C GLY
507C SER
508C ASN
516C ARG
536C ILE
538C ASN
C2F B 801
320A GLU
321A ARG
323A ASN
325A ALA
326A GLY
327A ARG
358A ASP
360A ASN
390A ASP
411A ASN
412A SER
435A ILE
437A LEU
473A ASP
475A GLY
476A VAL
503A THR
505A GLY
507A SER
508A ASN
511A PHE
512A GLY
516A ARG
536A ILE
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.

(click anywhere in this window to remove it)

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.

(click anywhere in this window to remove it)
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.

(click anywhere in this window to remove it)
apo-structure
pdb ID
1q7m 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.

(click anywhere in this window to remove it)
C2F NAME: 5-METHYL-5,6,7,8-TETRAHYDROFOLIC ACID
FORMULA: C20 H25 N7 O6
SMILES: CN1C(CNc2ccc(cc2)C(=O)NC(CCC(O)=O)C(O)=O)CNC3=C1C(=O)NC(=N3)N
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
Script execution time: 0.0477 seconds