scPDB - 1s16 entry

Protein Data Bank Entry:

PDB ID : 1s16

Resolution :2.100 Å

Experimental Method : X-ray

Deposition Date : 2004-01-05

Activity from ChEMBL: What is pChEMBL ?

	Min	Mean	Median	Standard Deviation	Max	Count
pChEMBL:

List of CHEMBLId :

Binding Site :

Uniprot Annotation

Name:	DNA topoisomerase 4 subunit B
ID:	PARE_ECOLI
AC:	P20083
Organism:	Escherichia coli
Reign:	Bacteria
TaxID:	83333
EC Number:	/

Chains:

Chain Name:	Percentage of Residues within binding site
A	93 %
B	7 %

Ligand binding site composition:

B-Factor:	24.621
Number of residues:	50
Including
Standard Amino Acids:	45
Non Standard Amino Acids:	1
Water Molecules:	4
Cofactors:
Metals:	MG

Cavity properties

Ligandability	Volume (Å3)
0.177	290.250

% Hydrophobic	% Polar
41.86	58.14
According to VolSite

Ligand :

HET Code:	ANP
Formula:	C10H13N6O12P3
Molecular weight:	502.164 g/mol
DrugBank ID:	-
Buried Surface Area:	83.25 %
Polar Surface area:	322.68 Å2

Number of
H-Bond Acceptors:	16
H-Bond Donors:	4
Rings:	3
Aromatic rings:	2
Anionic atoms:	4
Cationic atoms:	0
Rule of Five Violation:	2
Rotatable Bonds:	8

Mass center Coordinates

X	Y	Z
14.8146	54.5385	-11.8165

Binding mode :

What is Poseview ?

2D View
3D View

Image generated by PoseView

Protein

Binding Site

Ligand

Interaction pattern

hydrophobic (CA)

aromatic (CZ)

hydrogen bond acceptor (O)

hydrogen bond acceptor/donor (OG)

hydrogen bond donor (N)

positively ionized (NZ)

negatively ionized (OD1)

metal (ZN)

Legend:

Represent the protein/ligand binding mode, centered on the ligand
Dashed lines represents hydrogen bonds and metal interactions
Green residue labels for amino acids with hydrophobic contacts (green lines) to the ligand

Image generated using PoseView by BioSolveIT

Ligand	Protein		Interaction
Atom	Atom	Residue	Distance (Å)	Angle (°)	Type
O2A	ND2	ASN- 1042	3.07	170.28	H-Bond (Protein Donor)	false
N6	OD2	ASP- 1069	2.89	154.81	H-Bond (Ligand Donor)	false
C5'	CG2	ILE- 1090	3.6	0	Hydrophobic	false
C4'	CG1	ILE- 1090	3.96	0	Hydrophobic	false
C1'	CD1	ILE- 1090	3.79	0	Hydrophobic	false
O3'	N	GLY- 1098	2.84	157.71	H-Bond (Protein Donor)	false
O2'	N	GLY- 1098	3.22	120.58	H-Bond (Protein Donor)	false
O1B	NZ	LYS- 1099	2.94	148.64	H-Bond (Protein Donor)	false
O1B	NZ	LYS- 1099	2.94	0	Ionic (Protein Cationic)	false
C3'	CD	LYS- 1099	4.42	0	Hydrophobic	false
C2'	CE1	TYR- 1105	4.36	0	Hydrophobic	false
O2G	N	LEU- 1111	2.76	170.05	H-Bond (Protein Donor)	false
O2G	N	HIS- 1112	2.92	172.96	H-Bond (Protein Donor)	false
O2B	N	GLY- 1113	2.79	148.96	H-Bond (Protein Donor)	false
O3G	N	VAL- 1114	2.81	158.89	H-Bond (Protein Donor)	false
O3G	N	GLY- 1115	2.77	177.43	H-Bond (Protein Donor)	false
O2A	N	ILE- 1116	2.87	173.57	H-Bond (Protein Donor)	false
C5'	CG2	ILE- 1116	4.48	0	Hydrophobic	false
O1G	NE2	GLN- 1332	3.1	155.05	H-Bond (Protein Donor)	false
O1G	NZ	LYS- 1334	3.15	121.35	H-Bond (Protein Donor)	false
O2G	NZ	LYS- 1334	2.84	165.67	H-Bond (Protein Donor)	false
O1G	NZ	LYS- 1334	3.15	0	Ionic (Protein Cationic)	false
O2G	NZ	LYS- 1334	2.84	0	Ionic (Protein Cationic)	false
O1A	MG	MG- 1501	2.71	0	Metal Acceptor	false
O2'	OH	TYR- 2005	2.7	159.03	H-Bond (Ligand Donor)	false
N3	OH	TYR- 2005	2.84	166.53	H-Bond (Protein Donor)	false
C4'	CD1	ILE- 2010	4.34	0	Hydrophobic	false
N1	O	HOH- 3001	2.86	154.03	H-Bond (Protein Donor)	false
N6	O	HOH- 3081	3	149.09	H-Bond (Ligand Donor)	false