9OWG | pdb_00009owg

Crystal Structure of the Immunity Protein (52 domain-containing protein) from Pseudomonas aeruginosa PAO1.

PDB DOI: https://doi.org/10.2210/pdb9OWG/pdb

Classification: ANTITOXIN
Organism(s): Pseudomonas aeruginosa PAO1
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-06-02 Released: 2025-06-18
Deposition Author(s): Minasov, G., Wawrzak, Z., Skarina, T., Stogios, P.J., Savchenko, A., Satchell, K.F., Center for Structural Biology of Infectious Diseases (CSBID)
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.65 Å
R-Value Free:
0.201 (Depositor), 0.206 (DCC)
R-Value Work:
0.172 (Depositor), 0.181 (DCC)
R-Value Observed:
0.173 (Depositor)

Starting Model: experimental
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This is version 1.0 of the entry. See complete history.

Literature

Crystal Structure of the Immunity Protein (52 domain-containing protein) from Pseudomonas aeruginosa PAO1.

Minasov, G., Wawrzak, Z., Skarina, T., Stogios, P.J., Savchenko, A., Satchell, K.F., Center for Structural Biology of Infectious Diseases (CSBID)

To be published.

Macromolecule Content

Total Structure Weight: 28.15 kDa
Atom Count: 2,012
Modeled Residue Count: 228
Deposited Residue Count: 242
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Immunity protein 52 domain-containing protein	A	242	Pseudomonas aeruginosa PAO1	Mutation(s): 0 Gene Names: PA3908
UniProt
Find proteins for Q9HXA5 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)) Explore Q9HXA5 Go to UniProtKB: Q9HXA5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q9HXA5
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
EPE Query on EPE Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C₈ H₁₈ N₂ O₄ S JKMHFZQWWAIEOD-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
PO4 Query on PO4 Download:Ideal Coordinates CCD File SDF format, chain D [auth A] SDF format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain C [auth A]	C [auth A], D [auth A]	PHOSPHATE ION O₄ P NBIIXXVUZAFLBC-UHFFFAOYSA-K		Interactions Focus chain C [auth A] Focus chain D [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A]
EDO Query on EDO Download:Ideal Coordinates CCD File SDF format, chain E [auth A] MOL2 format, chain E [auth A] mmCIF format, chain E [auth A]	E [auth A]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain E [auth A] Interactions & Density Focus chain E [auth A]
CO3 Query on CO3 Download:Ideal Coordinates CCD File SDF format, chain F [auth A] MOL2 format, chain F [auth A] mmCIF format, chain F [auth A]	F [auth A]	CARBONATE ION C O₃ BVKZGUZCCUSVTD-UHFFFAOYSA-L		Interactions Focus chain F [auth A] Interactions & Density Focus chain F [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.65 Å
R-Value Free: 0.201 (Depositor), 0.206 (DCC)
R-Value Work: 0.172 (Depositor), 0.181 (DCC)
R-Value Observed: 0.173 (Depositor)

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.425	α = 90
b = 86.425	β = 90
c = 81.853	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHENIX	phasing

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2025-06-18

Deposition Author(s):

Center for Structural Biology of Infectious Diseases (CSBID)

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	75N93022C00035

Revision History (Full details and data files)

Version 1.0: 2025-06-18
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.