9ZB7 | pdb_00009zb7

A DARPin fused to the 1TEL crystallization chaperone via a direct helical fusion

• PDB DOI: https://doi.org/10.2210/pdb9ZB7/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2025-11-20 Released: 2025-12-17 
• Deposition Author(s): Averett, J.C., Bradford, M.J., Wilson, E.W., Averett, B.J., Anderson, E., Anderson, A., Doukov, T., Moody, J.D.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.24 Å
• R-Value Free: 
  0.170 (Depositor), 0.170 (DCC) 
• R-Value Work: 
  0.146 (Depositor), 0.145 (DCC) 
• R-Value Observed: 
  0.147 (Depositor) 

Starting Models: experimental

Literature

Polymer crystallization physics discovered through modulating the pH sensitivity of the TELSAM crystallization chaperone for increased solubility

Averett, J.C., Bradford, M.J., Wilson, E.W., Yseng, Y.J., Averett, B.J., Anderson, E., Anderson, A., Doukov, T., Moody, J.D.

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: 28.29 kDa 
• Atom Count: 2,105 
• Modeled Residue Count: 238 
• Deposited Residue Count: 243 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcription factor ETV6,DARPin	A	243	Homo sapiens, synthetic construct This entity is chimeric	Mutation(s): 1  Gene Names: ETV6, TEL, TEL1
UniProt & NIH Common Fund Data Resources
Find proteins for P41212 (Homo sapiens) Explore P41212  Go to UniProtKB:  P41212
PHAROS:  P41212 GTEx:  ENSG00000139083

Small Molecules

Ligands 7 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AKG	B [auth A]	2-OXOGLUTARIC ACID C5 H6 O5 KPGXRSRHYNQIFN-UHFFFAOYSA-N
PO4	R [auth A], S [auth A], T [auth A], U [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
GOL	D [auth A], E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
EOH	F [auth A], G [auth A]	ETHANOL C2 H6 O LFQSCWFLJHTTHZ-UHFFFAOYSA-N
K	H [auth A], I [auth A], J [auth A], K [auth A], L [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N
CL	M [auth A], N [auth A], O [auth A], P [auth A], Q [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
NH4	C [auth A]	AMMONIUM ION H4 N QGZKDVFQNNGYKY-UHFFFAOYSA-O

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.24 Å
• R-Value Free:  0.170 (Depositor), 0.170 (DCC) 
• R-Value Work:  0.146 (Depositor), 0.145 (DCC) 
• R-Value Observed: 0.147 (Depositor) 

Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.69	α = 90
b = 83.69	β = 90
c = 58.491	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB-REDO	refinement
XDS	data reduction
autoPROC	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-12-17 
Deposition Author(s): Averett, J.C., Bradford, M.J., Wilson, E.W., Averett, B.J., Anderson, E., Anderson, A., Doukov, T., Moody, J.D.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R15GM146209
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R35GM155011

Revision History  

• Version 1.0: 2025-12-17
  Type: Initial release