1SWG

CIRCULAR PERMUTED STREPTAVIDIN E51/A46 IN COMPLEX WITH BIOTIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.190

Literature

Macromolecules
Sequence Display for 1SWG

Classification: BIOTIN-BINDING PROTEIN

Total Structure Weight: 54294.86

Macromolecule Entities
Molecule Chains Length Organism Details
CIRCULARLY PERMUTED CORE-STREPTAVIDIN E51/A46 A, B, C, D 128 Streptomyces avidinii Mutation: I9G, D10G, A11G, A12S, K13A, K14E, V19G, N20T, N21W, G22Y, P24Q
Gene Name(s):
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
BTN
Query on BTN

A, B, C, D BIOTIN
C10 H16 N2 O3 S
YBJHBAHKTGYVGT-ZKWXMUAHSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
BTN Kd: 1 nM (92) BindingDB
ΔH: -123 - -66.9 kJ/mol (92) BindingDB

Kd: 43.9 nM  BindingMOAD
Kd: 43.9 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Observed: 0.190
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 71.90 α = 90.00
b = 78.60 β = 90.00
c = 90.80 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1997-07-12
  • Released Date: 1998-07-15
  • Deposition author(s): Freitag, S., Chu, V., Le Trong, I., Stayton, P.S., Stenkamp, R.E.

Revision History

  • 2008-03-24
    Type: Version format compliance
  • 2011-07-13
    Type: Derived calculations, Version format compliance