5UCB | pdb_00005ucb

Structure of antigen-Fab complex with engineered switch residue region.

• PDB DOI: https://doi.org/10.2210/pdb5UCB/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens, Saccharomyces cerevisiae S288C
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2016-12-22 Released: 2017-12-27 
• Deposition Author(s): Bailey, L.J., Kossiakoff, A.A., Chaperone-Enabled Studies of Epigenetic Regulation Enzymes (CEBS)
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free: 
  0.169 (Depositor), 0.169 (DCC) 
• R-Value Work: 
  0.138 (Depositor), 0.140 (DCC) 
• R-Value Observed: 
  0.140 (Depositor) 

Literature

Antibody Switch Residue Engineering for Improved Crystallization Chaperones

Bailey, L.J., Kossiakoff, A.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

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

Macromolecule Content 

• Total Structure Weight: 63.42 kDa 
• Atom Count: 5,097 
• Modeled Residue Count: 580 
• Deposited Residue Count: 580 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab Heavy Chain	A [auth H]	217	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab Light Chain	B [auth L]	210	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone chaperone ASF1	C [auth B]	153	Saccharomyces cerevisiae S288C	Mutation(s): 0  Gene Names: ASF1, CIA1, YJL115W, J0755
UniProt
Find proteins for P32447 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P32447  Go to UniProtKB:  P32447

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.52 Å
• R-Value Free:  0.169 (Depositor), 0.169 (DCC) 
• R-Value Work:  0.138 (Depositor), 0.140 (DCC) 
• R-Value Observed: 0.140 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.378	α = 106.29
b = 49.18	β = 95.71
c = 84.707	γ = 100.13

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2017-12-27 
Deposition Author(s): Bailey, L.J., Kossiakoff, A.A., Chaperone-Enabled Studies of Epigenetic Regulation Enzymes (CEBS)

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM 087519
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM 117372

Revision History  

• Version 1.0: 2017-12-27
  Type: Initial release
  
• Version 1.1: 2020-01-01
  Changes: Author supporting evidence
• Version 1.2: 2024-10-23
  Changes: Data collection, Database references, Structure summary