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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:

2a3b

1.900 Å

X-ray

2005-06-24

Interactomes:
Molecular Function:
Binding Site :

Uniprot Annotation

Name:Endochitinase B1
ID:CHIB1_ASPFM
AC:Q873X9
Organism:Neosartorya fumigata
Reign:Eukaryota
TaxID:746128
EC Number:3.2.1.14


Chains:

Chain Name:Percentage of Residues
within binding site
A100 %


Ligand binding site composition:

B-Factor:22.302
Number of residues:14
Including
Standard Amino Acids: 11
Non Standard Amino Acids: 1
Water Molecules: 2
Cofactors:
Metals:

Cavity properties

LigandabilityVolume (Å3)
0.419654.750

% Hydrophobic% Polar
47.4252.58
According to VolSite

Ligand :
2a3b_1 Structure
HET Code: CFF
Formula: C8H10N4O2
Molecular weight: 194.191 g/mol
DrugBank ID: DB00201
Buried Surface Area:45.49 %
Polar Surface area: 58.44 Å2
Number of
H-Bond Acceptors: 3
H-Bond Donors: 0
Rings: 2
Aromatic rings: 1
Anionic atoms: 0
Cationic atoms: 0
Rule of Five Violation: 0
Rotatable Bonds: 0

Mass center Coordinates

XYZ
92.811674.167-6.063


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
C10CZ3TRP- 1374.160Hydrophobic
C12CD2TRP- 1373.710Hydrophobic
C14CH2TRP- 1374.080Hydrophobic
DuArDuArTRP- 1373.70Aromatic Face/Face
C10SDMET- 2433.870Hydrophobic
C10CE1TYR- 2454.060Hydrophobic
C10CBASP- 2464.160Hydrophobic
C14CZPHE- 2513.620Hydrophobic