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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1xz8
TRANSCRIPTION, TRANSFERASE HEADER
PYRR, THE REGULATOR OF THE PYRIMIDINE BIOSYNTHETIC OPERON IN BACILLUS CALDOLYTICUS, NUCLEOTIDE-BOUND FORM TITLE
PYRR BIFUNCTIONAL PROTEIN 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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MG M 100
38A ILE
39A LYS
42A GLY
104A ASP
105A ASP
106A VAL
MG Q 101
38J ILE
39J LYS
42J GLY
104J ASP
105J ASP
MG N 100
38C ILE
39C LYS
42C GLY
104C ASP
105C ASP
106C VAL
MG P 101
38G ILE
39G LYS
41G ARG
42G GLY
104G ASP
105G ASP
MG O 101
38E ILE
39E LYS
42E GLY
104E ASP
105E ASP
MG P 100
38H ILE
39H LYS
42H GLY
104H ASP
105H ASP
106H VAL
MG R 100
38K ILE
39K LYS
42K GLY
104K ASP
105K ASP
106K VAL
MG M 101
38B ILE
39B LYS
41B ARG
42B GLY
104B ASP
105B ASP
MG O 100
38F ILE
39F LYS
41F ARG
42F GLY
104F ASP
105F ASP
106F VAL
MG Q 100
38I ILE
39I LYS
41I ARG
42I GLY
104I ASP
105I ASP
106I VAL
MG N 101
38D ILE
39D LYS
41D ARG
42D GLY
104D ASP
105D ASP
MG R 101
38L ILE
39L LYS
41L ARG
42L GLY
104L ASP
105L ASP
3GP M 300
39A LYS
40A THR
41A ARG
92D PRO
93D PHE
94D PRO
95D VAL
96D THR
105A ASP
123D LEU
124D GLY
160A LEU
161A ILE
162A VAL
163A VAL
5GP M 200
39A LYS
71A TYR
96D THR
104A ASP
105A ASP
106A VAL
107A LEU
108A PHE
109A THR
110A GLY
111A ARG
112A THR
113A VAL
122D ASP
123D LEU
124D GLY
125D ARG
137A ARG
160A LEU
161A ILE
163A VAL
U5P Q 400
39J LYS
72D ARG
104J ASP
105J ASP
106J VAL
107J LEU
108J PHE
109J THR
110J GLY
111J ARG
112J THR
113J VAL
137J ARG
160J LEU
161J ILE
3GP N 300
39C LYS
40C THR
41C ARG
92B PRO
93B PHE
94B PRO
95B VAL
96B THR
105C ASP
123B LEU
124B GLY
160C LEU
161C ILE
162C VAL
163C VAL
5GP N 200
39C LYS
71C TYR
96B THR
104C ASP
105C ASP
106C VAL
107C LEU
108C PHE
109C THR
110C GLY
111C ARG
112C THR
113C VAL
122B ASP
123B LEU
124B GLY
125B ARG
137C ARG
160C LEU
161C ILE
163C VAL
U5P P 400
39G LYS
72L ARG
104G ASP
105G ASP
106G VAL
107G LEU
108G PHE
109G THR
110G GLY
111G ARG
112G THR
113G VAL
137G ARG
160G LEU
161G ILE
U5P O 400
39E LYS
72B ARG
104E ASP
105E ASP
106E VAL
107E LEU
108E PHE
109E THR
110E GLY
111E ARG
112E THR
113E VAL
137E ARG
160E LEU
161E ILE
3GP P 300
39H LYS
40H THR
41H ARG
92E PRO
93E PHE
94E PRO
95E VAL
96E THR
98E ARG
105H ASP
123E LEU
124E GLY
160H LEU
161H ILE
162H VAL
5GP P 200
39H LYS
71H TYR
96E THR
104H ASP
105H ASP
106H VAL
107H LEU
108H PHE
109H THR
110H GLY
111H ARG
112H THR
113H VAL
122E ASP
123E LEU
124E GLY
125E ARG
137H ARG
160H LEU
161H ILE
163H VAL
3GP R 300
39K LYS
40K THR
41K ARG
92J PRO
93J PHE
94J PRO
95J VAL
96J THR
98J ARG
105K ASP
123J LEU
124J GLY
160K LEU
161K ILE
162K VAL
5GP R 200
39K LYS
71K TYR
96J THR
104K ASP
105K ASP
106K VAL
107K LEU
108K PHE
109K THR
110K GLY
111K ARG
112K THR
113K VAL
122J ASP
123J LEU
124J GLY
125J ARG
137K ARG
160K LEU
161K ILE
163K VAL
U5P M 400
39B LYS
72E ARG
104B ASP
105B ASP
106B VAL
107B LEU
108B PHE
109B THR
110B GLY
111B ARG
112B THR
113B VAL
137B ARG
160B LEU
161B ILE
3GP O 300
39F LYS
40F THR
41F ARG
92G PRO
93G PHE
94G PRO
95G VAL
96G THR
98G ARG
105F ASP
122G ASP
123G LEU
124G GLY
160F LEU
161F ILE
162F VAL
163F VAL
5GP O 200
39F LYS
71F TYR
96G THR
104F ASP
105F ASP
106F VAL
107F LEU
108F PHE
109F THR
110F GLY
111F ARG
112F THR
113F VAL
122G ASP
123G LEU
124G GLY
125G ARG
137F ARG
160F LEU
161F ILE
163F VAL
3GP Q 300
39I LYS
40I THR
41I ARG
92L PRO
93L PHE
94L PRO
95L VAL
96L THR
98L ARG
105I ASP
122L ASP
123L LEU
124L GLY
160I LEU
161I ILE
162I VAL
163I VAL
5GP Q 200
39I LYS
71I TYR
96L THR
104I ASP
105I ASP
106I VAL
107I LEU
108I PHE
109I THR
110I GLY
111I ARG
112I THR
113I VAL
122L ASP
123L LEU
124L GLY
125L ARG
137I ARG
160I LEU
161I ILE
163I VAL
U5P N 400
39D LYS
72J ARG
104D ASP
105D ASP
106D VAL
107D LEU
108D PHE
109D THR
110D GLY
111D ARG
112D THR
113D VAL
137D ARG
160D LEU
161D ILE
U5P R 400
39L LYS
72G ARG
104L ASP
105L ASP
106L VAL
107L LEU
108L PHE
109L THR
110L GLY
111L ARG
112L THR
113L VAL
137L ARG
160L LEU
161L 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.

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Links to external databases:

LigPlot (hosted at the EBI):

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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
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.

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apo-structure
pdb ID
1non Details
other holo-structures
pdb ID Ligand Unique ID
2igb U5PC_351 Details
U5PB_352
U5PD_352
U5PA_351
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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3GP NAME: GUANOSINE-3'-MONOPHOSPHATE
FORMULA: C10 H14 N5 O8 P1
SMILES: NC1=Nc2[n](cnc2C(=O)N1)C3OC(CO)C(OP(O)(O)=O)C3O
5GP NAME: guanosine-5'-monophosphate
FORMULA: C10 H14 N5 O8 P1
SMILES: NC1=Nc2[n](cnc2C(=O)N1)C3OC(COP(O)(O)=O)C(O)C3O
MG NAME: MAGNESIUM ION
FORMULA: MG1
SMILES: [Mg++]
U5P NAME: URIDINE-5'-MONOPHOSPHATE
FORMULA: C9 H13 N2 O9 P1
SMILES: OC1C(O)C(OC1COP(O)(O)=O)N2C=CC(=O)NC2=O
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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