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sc-PDB

An Annotated Database of Druggable Binding Sites from the Protein DataBank

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Protein Data Bank Entry:

1n43

1.890 Å

X-ray

2002-10-30

Interactomes:
Molecular Function:
Binding Site :

Uniprot Annotation

Name:Streptavidin
ID:SAV_STRAV
AC:P22629
Organism:Streptomyces avidinii
Reign:Bacteria
TaxID:1895
EC Number:/


Chains:

Chain Name:Percentage of Residues
within binding site
A96 %
D4 %


Ligand binding site composition:

B-Factor:20.210
Number of residues:28
Including
Standard Amino Acids: 28
Non Standard Amino Acids: 0
Water Molecules: 0
Cofactors:
Metals:

Cavity properties

LigandabilityVolume (Å3)
1.055560.250

% Hydrophobic% Polar
46.3953.61
According to VolSite

Ligand :
1n43_1 Structure
HET Code: BTN
Formula: C10H15N2O3S
Molecular weight: 243.303 g/mol
DrugBank ID: DB00121
Buried Surface Area:79.77 %
Polar Surface area: 106.55 Å2
Number of
H-Bond Acceptors: 4
H-Bond Donors: 2
Rings: 2
Aromatic rings: 0
Anionic atoms: 1
Cationic atoms: 0
Rule of Five Violation: 0
Rotatable Bonds: 5

Mass center Coordinates

XYZ
10.4357-13.618624.3798


Binding mode :
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Binding mode
BioSolveIT 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
BioSolveIT


LigandProteinInteraction
AtomAtomResidueDistance
(Å)
Angle (°)Type
O3OGSER- 272.53143.4H-Bond
(Protein Donor)
C7CBSER- 453.890Hydrophobic
N2OGSER- 453.11164.64H-Bond
(Ligand Donor)
C7CG2VAL- 474.080Hydrophobic
O11NASN- 492.86157.4H-Bond
(Protein Donor)
C10CBASN- 494.450Hydrophobic
C9CBALA- 503.750Hydrophobic
C8CE2TRP- 793.80Hydrophobic
S1CZ2TRP- 793.610Hydrophobic
C10CD2TRP- 793.420Hydrophobic
C7CZ2TRP- 793.70Hydrophobic
C10CBALA- 864.20Hydrophobic
O12OGSER- 882.88150.41H-Bond
(Protein Donor)
S1CG2THR- 903.660Hydrophobic
S1CZ2TRP- 923.710Hydrophobic
C6CE2TRP- 1083.440Hydrophobic
C8CD2LEU- 1104.320Hydrophobic
C2CZ3TRP- 1203.910Hydrophobic
N1OD2ASP- 1282.78171.48H-Bond
(Ligand Donor)