9C03 | pdb_00009c03

UIC-1-A4S/B7M bound with xylenes

• PDB DOI: https://doi.org/10.2210/pdb9C03/pdb

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2024-05-24 Released: 2025-11-26 
• Deposition Author(s): Heinz-Kunert, S.L.
• Funding Organization(s): Department of Energy (DOE, United States)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 0.93 Å
• R-Value Free: 
  0.079 (Depositor), 0.069 (DCC) 
• R-Value Work: 
  0.070 (Depositor), 0.071 (DCC) 
• R-Value Observed: 
  0.071 (Depositor) 

Starting Model: experimental

Literature

Evolvable conformational diversity in assemblies of short peptides

Heinz-Kunert, S.L., Nguyen, A.I.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content 

• Total Structure Weight: 2.23 kDa 
• Atom Count: 184 
• Modeled Residue Count: 9 
• Deposited Residue Count: 9 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
UIC-1-A4S/B7M	A	9	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
I6W (Subject of Investigation/LOI)	C [auth A]	ethyl 5'-formyl[2,2'-bipyridine]-5-carboxylate C14 H12 N2 O4 FZDQJVHCAWGPRW-UHFFFAOYSA-N
I77 (Subject of Investigation/LOI)	B [auth A]	5'-(hydrazinecarbonyl)[2,2'-bipyridine]-5-carboxamide C12 H11 N5 O2 HCFBUFHFZAJOFM-UHFFFAOYSA-N
OXE (Subject of Investigation/LOI)	F [auth A], G [auth A], H [auth A]	ORTHO-XYLENE C8 H10 CTQNGGLPUBDAKN-UHFFFAOYSA-N
8VH (Subject of Investigation/LOI)	E [auth A], I [auth A], J [auth A]	1,3-dimethylbenzene C8 H10 IVSZLXZYQVIEFR-UHFFFAOYSA-N
PXY (Subject of Investigation/LOI)	D [auth A]	PARA-XYLENE C8 H10 URLKBWYHVLBVBO-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
AIB	A	L-PEPTIDE LINKING	C4 H9 N O2		ALA

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 0.93 Å
• R-Value Free:  0.079 (Depositor), 0.069 (DCC) 
• R-Value Work:  0.070 (Depositor), 0.071 (DCC) 
• R-Value Observed: 0.071 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 13.736	α = 90
b = 13.418	β = 101.55
c = 28.65	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-11-26 
Deposition Author(s): Heinz-Kunert, S.L.

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Funding Organization	Location	Grant Number
Department of Energy (DOE, United States)	United States	DE-AC02-06CH11357

Revision History  

• Version 1.0: 2025-11-26
  Type: Initial release