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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:

1kt4

1.460 Å

X-ray

2002-01-15

Interactomes:
Molecular Function:
Binding Site :

Uniprot Annotation

Name:Retinol-binding protein 4
ID:RET4_BOVIN
AC:P18902
Organism:Bos taurus
Reign:Eukaryota
TaxID:9913
EC Number:/


Chains:

Chain Name:Percentage of Residues
within binding site
A100 %


Ligand binding site composition:

B-Factor:18.137
Number of residues:40
Including
Standard Amino Acids: 37
Non Standard Amino Acids: 0
Water Molecules: 3
Cofactors:
Metals:

Cavity properties

LigandabilityVolume (Å3)
1.795445.500

% Hydrophobic% Polar
76.5223.48
According to VolSite

Ligand :
1kt4_1 Structure
HET Code: RTL
Formula: C20H30O
Molecular weight: 286.452 g/mol
DrugBank ID: DB00162
Buried Surface Area:77.61 %
Polar Surface area: 20.23 Å2
Number of
H-Bond Acceptors: 1
H-Bond Donors: 1
Rings: 1
Aromatic rings: 0
Anionic atoms: 0
Cationic atoms: 0
Rule of Five Violation: 1
Rotatable Bonds: 5

Mass center Coordinates

XYZ
31.67719.439148.152


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
C15CD1LEU- 354.310Hydrophobic
C20CBLEU- 353.850Hydrophobic
C19CE1PHE- 363.950Hydrophobic
C3CBALA- 434.030Hydrophobic
C2CZPHE- 454.040Hydrophobic
C3CBALA- 553.880Hydrophobic
C17CBALA- 574.450Hydrophobic
C3CBALA- 573.970Hydrophobic
C15CG2VAL- 613.790Hydrophobic
C15CD2LEU- 634.280Hydrophobic
C18CBMET- 734.030Hydrophobic
C4CZPHE- 774.480Hydrophobic
C4SDMET- 883.860Hydrophobic
C16CEMET- 884.360Hydrophobic
C18SDMET- 883.90Hydrophobic
C2SDMET- 884.290Hydrophobic
C18CBTYR- 903.730Hydrophobic
C19CE2TYR- 904.260Hydrophobic
C15CD2LEU- 973.750Hydrophobic
C15CBGLN- 984.390Hydrophobic
C20CBGLN- 983.640Hydrophobic
O1NGLN- 982.75158.24H-Bond
(Protein Donor)
C16CE2TYR- 1334.140Hydrophobic
C19CZTYR- 1334.310Hydrophobic
C16CE2PHE- 1353.930Hydrophobic
C17CE2PHE- 1353.710Hydrophobic
C17CZPHE- 1374.30Hydrophobic