3KZY

Crystal structure of SNAP-tag

• PDB DOI: https://doi.org/10.2210/pdb3KZY/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2009-12-09 Released: 2010-12-15 
• Deposition Author(s): Bannwarth, M., Schmitt, S., Pojer, F., Schiltz, M., Johnsson, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.261 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.204 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.207 (Depositor) 

Starting Model: experimental

Literature

SNAP-tag structure

Schmitt, S., Mollwitz, B., Pojer, F., Bannwarth, M., Schiltz, M., Johnsson, K.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 39.01 kDa 
• Atom Count: 2,759 
• Modelled Residue Count: 324 
• Deposited Residue Count: 364 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Methylated-DNA--protein-cysteine methyltransferase	A, B	182	Homo sapiens	Mutation(s): 0  EC: 2.1.1.63
UniProt
Find proteins for E5BBQ0 (Homo sapiens) Explore E5BBQ0  Go to UniProtKB:  E5BBQ0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	C [auth A], D [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.261 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.204 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.207 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 112.535	α = 90
b = 112.535	β = 90
c = 64.823	γ = 90

Software Package:

Software Name	Purpose
BsxCuBE	data collection
CCP4	model building
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-12-15 
Deposition Author(s): Bannwarth, M., Schmitt, S., Pojer, F., Schiltz, M., Johnsson, K.

Revision History  

• Version 1.0: 2010-12-15
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2022-12-07
  Changes: Database references, Derived calculations, Source and taxonomy, Structure summary
• Version 1.3: 2023-11-08
  Changes: Data collection, Refinement description