8S9I

Crystal structure of the gp32 C-terminal peptide/Dda/dT8

• PDB DOI: https://doi.org/10.2210/pdb8S9I/pdb
• NAKB: 8S9I

• Classification: DNA BINDING PROTEIN
• Organism(s): Tequatrovirus, Tequatrovirus T4, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-03-28 Released: 2023-06-28 
• Deposition Author(s): He, X., Yun, M.K., White, S.W.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Other private

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.53 Å
• R-Value Free: 0.278 
• R-Value Work: 0.253 
• R-Value Observed: 0.256 

Literature

Crystal structure of the gp32 C-terminal peptide/Dda/dT8

He, X., Yun, M.K., White, S.W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: surface plasmon resonance

Macromolecule Content

• Total Structure Weight: 56.92 kDa 
• Atom Count: 3,684 
• Modelled Residue Count: 463 
• Deposited Residue Count: 490 
• Unique protein chains: 2
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dda helicase	A	459	Tequatrovirus	Mutation(s): 0  Gene Names: teqhal_52
UniProt
Find proteins for P32270 (Enterobacteria phage T4) Explore P32270  Go to UniProtKB:  P32270

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
gp32 C-terminal peptide	B [auth G]	23	Tequatrovirus T4	Mutation(s): 0
UniProt
Find proteins for P03695 (Enterobacteria phage T4) Explore P03695  Go to UniProtKB:  P03695

Entity ID: 3
Molecule	Chains	Length	Organism	Image
dT8	C [auth B]	8	synthetic construct

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.53 Å
• R-Value Free: 0.278 
• R-Value Work: 0.253 
• R-Value Observed: 0.256 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 121.789	α = 90
b = 121.789	β = 90
c = 88.501	γ = 120

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-06-28 
Deposition Author(s): He, X., Yun, M.K., White, S.W.

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P20GM121293
Other private		CA021765

Revision History  

• Version 1.0: 2023-06-28
  Type: Initial release