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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:

1kt3

1.400 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:26.941
Number of residues:37
Including
Standard Amino Acids: 34
Non Standard Amino Acids: 0
Water Molecules: 3
Cofactors:
Metals:

Cavity properties

LigandabilityVolume (Å3)
1.905550.125

% Hydrophobic% Polar
74.8525.15
According to VolSite

Ligand :
1kt3_1 Structure
HET Code: RTL
Formula: C20H30O
Molecular weight: 286.452 g/mol
DrugBank ID: DB00162
Buried Surface Area:60.32 %
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
33.60919.8949.7219


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- 354.320Hydrophobic
C20CBLEU- 353.980Hydrophobic
C19CE1PHE- 364.350Hydrophobic
C3CBALA- 434.450Hydrophobic
C2CZPHE- 454.260Hydrophobic
C4CBALA- 554.140Hydrophobic
C3CBALA- 574.350Hydrophobic
C15CG2VAL- 614.210Hydrophobic
C18CBMET- 734.480Hydrophobic
C2SDMET- 884.490Hydrophobic
C4SDMET- 884.160Hydrophobic
C16CEMET- 884.430Hydrophobic
C18SDMET- 884.220Hydrophobic
C18CBTYR- 903.980Hydrophobic
C19CE2TYR- 904.20Hydrophobic
C15CD2LEU- 974.290Hydrophobic
C15CBGLN- 984.40Hydrophobic
C20CBGLN- 9840Hydrophobic
O1NGLN- 983.01145.55H-Bond
(Protein Donor)
C16CE2TYR- 1334.450Hydrophobic
C16CE2PHE- 1354.170Hydrophobic
C17CE2PHE- 1353.920Hydrophobic