1STP

STRUCTURAL ORIGINS OF HIGH-AFFINITY BIOTIN BINDING TO STREPTAVIDIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Observed: 0.220

Literature

Macromolecules
Sequence Display for 1STP

Classification: BIOTIN BINDING PROTEIN

Total Structure Weight: 16749.31

Macromolecule Entities
Molecule Chains Length Organism Details
STREPTAVIDIN COMPLEX WITH BIOTIN A 159 Streptomyces avidinii 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 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 (100) BindingDB
ΔH: -123 - -66.9 kJ/mol (99 - 100) BindingDB

N/A in BindingMoad
Kd: 0.00004 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Observed: 0.220
  • Space Group: I 41 2 2

Unit Cell:

Length (Å) Angle (°)
a = 99.40 α = 90.00
b = 99.40 β = 90.00
c = 125.80 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1992-03-12
  • Released Date: 1992-10-15
  • Deposition author(s): Weber, P.C., Salemme, F.R.

Revision History

  • Version 1_0: 1992-10-15

    Type: Initial release

  • Version 1_1: 2008-03-24

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Derived calculations, Version format compliance