1LDO

avidin-norbioitn complex

• PDB DOI: https://doi.org/10.2210/pdb1LDO/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Gallus gallus
• Mutation(s): No 


• Deposited: 2002-04-09 Released: 2002-11-06 
• Deposition Author(s): Pazy, Y., Kulik, T., Bayer, E.A., Wilchek, M., Livnah, O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.241 
• R-Value Work: 0.183 

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 29.6 kDa 
• Atom Count: 2,057 
• Modelled Residue Count: 242 
• Deposited Residue Count: 256 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
avidin	A, B	128	Gallus gallus	Mutation(s): 0
UniProt
Find proteins for P02701 (Gallus gallus) Explore P02701  Go to UniProtKB:  P02701

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SNR	D [auth A], F [auth B]	NORBIOTIN C9 H14 N2 O3 S AINAXQHKYSZESH-HAFWLYHUSA-N
NAG	C [auth A], E [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.241 
• R-Value Work: 0.183 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 71.103	α = 90
b = 79.813	β = 90
c = 43.14	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-11-06 
Deposition Author(s): Pazy, Y., Kulik, T., Bayer, E.A., Wilchek, M., Livnah, O.

Revision History  

• Version 1.0: 2002-11-06
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary