1UM5

Catalytic Antibody 21H3 with alcohol substrate

• PDB DOI: https://doi.org/10.2210/pdb1UM5/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-09-23 Released: 2004-10-05 
• Deposition Author(s): Beuscher IV, A.E., Reuter, J., Olson, A.J., Romesberg, F.E., Schultz, P.G., Wirsching, P., Janda, K.D., Lerner, R.A., Stevens, R.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.246 
• R-Value Work: 0.205 

Literature

Structural Studies of an Efficient Catalytic Antibody Operating by Ping-Pong and Induced Fit Mechanisms

Beuscher IV, A.E., Reuter, J., Olson, A.J., Romesberg, F.E., Schultz, P.G., Wirsching, P., Janda, K.D., Lerner, R.A., Stevens, R.C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Macromolecule Content

• Total Structure Weight: 47.02 kDa 
• Atom Count: 3,682 
• Modelled Residue Count: 433 
• Deposited Residue Count: 436 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antibody 21H3 L chain	A [auth L]	219	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Antibody 21H3 H chain	B [auth H]	217	Mus musculus	Mutation(s): 0
UniProt
Find proteins for Q6PYX1 (Homo sapiens) Explore Q6PYX1  Go to UniProtKB:  Q6PYX1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SS1	C [auth H]	1-PHENYLETHANOL C8 H10 O WAPNOHKVXSQRPX-ZETCQYMHSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.246 
• R-Value Work: 0.205 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.128	α = 90
b = 64.706	β = 90
c = 138.51	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-10-05 
Deposition Author(s): Beuscher IV, A.E., Reuter, J., Olson, A.J., Romesberg, F.E., Schultz, P.G., Wirsching, P., Janda, K.D., Lerner, R.A., Stevens, R.C.

Revision History  

• Version 1.0: 2004-10-05
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-12-27
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-10-30
  Changes: Structure summary