scPDB - 1nqm entry

Protein Data Bank Entry:

PDB ID : 1nqm

Resolution :1.700 Å

Experimental Method : X-ray

Deposition Date : 2003-01-22

Activity from ChEMBL: What is pChEMBL ?

	Min	Mean	Median	Standard Deviation	Max	Count
pChEMBL:

List of CHEMBLId :

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
C	93 %
D	7 %

Ligand binding site composition:

B-Factor:	25.234
Number of residues:	31
Including
Standard Amino Acids:	30
Non Standard Amino Acids:	0
Water Molecules:	1
Cofactors:
Metals:

Cavity properties

Ligandability	Volume (Å3)
1.061	691.875

% Hydrophobic	% Polar
48.29	51.71
According to VolSite

Ligand :

HET Code:	BTN
Formula:	C10H15N2O3S
Molecular weight:	243.303 g/mol
DrugBank ID:	DB00121
Buried Surface Area:	81.35 %
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

X	Y	Z
9.64075	90.3551	23.6763

Binding mode :

What is Poseview ?

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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

Ligand	Protein		Interaction
Atom	Atom	Residue	Distance (Å)	Angle (°)	Type
O3	ND2	ASN- 423	2.93	145.61	H-Bond (Protein Donor)	false
O3	OG	SER- 427	2.76	153.36	H-Bond (Protein Donor)	false
O3	OH	TYR- 443	2.66	165.48	H-Bond (Protein Donor)	false
C7	CB	SER- 445	4.11	0	Hydrophobic	false
N2	OG	SER- 445	3.01	166.04	H-Bond (Ligand Donor)	false
O11	N	ASN- 449	2.98	154.78	H-Bond (Protein Donor)	false
C10	CB	ASN- 449	4.4	0	Hydrophobic	false
C9	CB	ALA- 450	4.11	0	Hydrophobic	false
C10	CD2	TRP- 479	3.65	0	Hydrophobic	false
C7	CZ2	TRP- 479	3.92	0	Hydrophobic	false
S1	CZ2	TRP- 479	3.74	0	Hydrophobic	false
C9	CE2	TRP- 479	3.68	0	Hydrophobic	false
C10	CB	ALA- 486	4.15	0	Hydrophobic	false
O12	OG	SER- 488	2.77	165.09	H-Bond (Protein Donor)	false
S1	CG2	THR- 490	3.87	0	Hydrophobic	false
S1	CZ2	TRP- 492	3.77	0	Hydrophobic	false
C6	CE2	TRP- 508	3.35	0	Hydrophobic	false
C8	CD2	LEU- 510	3.81	0	Hydrophobic	false
C2	CD2	LEU- 510	4.36	0	Hydrophobic	false
N1	OD2	ASP- 528	2.78	173.41	H-Bond (Ligand Donor)	false
C2	CE	LYS- 720	4.08	0	Hydrophobic	false