1AVD

THREE-DIMENSIONAL STRUCTURE OF THE TETRAGONAL CRYSTAL FORM OF EGG-WHITE AVIDIN IN ITS FUNCTIONAL COMPLEX WITH BIOTIN AT 2.7 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1AVD/pdb

• Classification: BIOTIN-BINDING PROTEIN
• Organism(s): Gallus gallus
• Mutation(s): No 


• Deposited: 1993-03-05 Released: 1994-01-31 
• Deposition Author(s): Pugliese, L., Coda, A., Malcovati, M., Bolognesi, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Observed: 0.174 

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: 29.41 kDa 
• Atom Count: 2,022 
• Modelled Residue Count: 247 
• 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
BTN	D [auth A], E [auth B]	BIOTIN C10 H16 N2 O3 S YBJHBAHKTGYVGT-ZKWXMUAHSA-N
NAG	C [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
BTN	PDBBind:  1AVD	Kd: 1.00e-6 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Observed: 0.174 
• Space Group: P 4₂ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.15	α = 90
b = 80.15	β = 90
c = 85.28	γ = 90

Software Package:

Software Name	Purpose
TNT	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1994-01-31 
Deposition Author(s): Pugliese, L., Coda, A., Malcovati, M., Bolognesi, M.

Revision History  

• Version 1.0: 1994-01-31
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Data collection, Derived calculations, Other, Structure summary