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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:

3s1a

3.000 Å

X-ray

2011-05-14

Interactomes:
Molecular Function:
Binding Site :

Uniprot Annotation

Name:Circadian clock protein kinase KaiC
ID:KAIC_SYNE7
AC:Q79PF4
Organism:Synechococcus elongatus
Reign:Bacteria
TaxID:1140
EC Number:2.7.11.1


Chains:

Chain Name:Percentage of Residues
within binding site
D62 %
E38 %


Ligand binding site composition:

B-Factor:36.331
Number of residues:40
Including
Standard Amino Acids: 38
Non Standard Amino Acids: 2
Water Molecules: 0
Cofactors:
Metals: MG MG

Cavity properties

LigandabilityVolume (Å3)
0.362604.125

% Hydrophobic% Polar
43.0256.98
According to VolSite

Ligand :
3s1a_8 Structure
HET Code: ATP
Formula: C10H12N5O13P3
Molecular weight: 503.149 g/mol
DrugBank ID: DB00171
Buried Surface Area:76.46 %
Polar Surface area: 319.88 Å2
Number of
H-Bond Acceptors: 17
H-Bond Donors: 3
Rings: 3
Aromatic rings: 2
Anionic atoms: 4
Cationic atoms: 0
Rule of Five Violation: 2
Rotatable Bonds: 8

Mass center Coordinates

XYZ
73.263146.725936.4847


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
O1BNGLY- 512.68129.69H-Bond
(Protein Donor)
O2BNGLY- 513.45157.92H-Bond
(Protein Donor)
O3ANTHR- 533.46139.62H-Bond
(Protein Donor)
O1ANLEU- 542.9147.24H-Bond
(Protein Donor)
N7OGSER- 893.06160.07H-Bond
(Protein Donor)
O1GNZLYS- 2243.120Ionic
(Protein Cationic)
O3GNZLYS- 2242.630Ionic
(Protein Cationic)
O3GNZLYS- 2242.63161.44H-Bond
(Protein Donor)
C3'CBLYS- 2244.320Hydrophobic
O2GNH2ARG- 2263.04138.01H-Bond
(Protein Donor)
O2GCZARG- 2263.70Ionic
(Protein Cationic)
O2'NE2HIS- 2302.73169.62H-Bond
(Ligand Donor)
C4'CD1ILE- 2394.180Hydrophobic
C1'CG2ILE- 2393.830Hydrophobic
N6OD1ASP- 2413.32170.09H-Bond
(Ligand Donor)
O1GMG MG- 7012.210Metal Acceptor
O2GMG MG- 7022.740Metal Acceptor
O3BMG MG- 7022.580Metal Acceptor