9H0A | pdb_00009h0a

Plasmodium falciparum lipocalin in complex with INE963

• PDB DOI: https://doi.org/10.2210/pdb9H0A/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Plasmodium falciparum
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2024-10-07 Released: 2025-10-15 
• Deposition Author(s): Mortensen, S., Sondermann, H.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.255 (Depositor), 0.257 (DCC) 
• R-Value Work: 
  0.207 (Depositor), 0.208 (DCC) 
• R-Value Observed: 
  0.212 (Depositor) 

Starting Model: experimental

Literature

Plasmodium falciparum lipocalin in complex with INE963

Mortensen, S., Sondermann, H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content 

• Total Structure Weight: 25.3 kDa 
• Atom Count: 1,573 
• Modeled Residue Count: 185 
• Deposited Residue Count: 217 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Parasitophorous vacuolar protein 5	A	217	Plasmodium falciparum	Mutation(s): 0  Gene Names: CK202_3992, CYL21_0996, PFNF54_05621
UniProt
Find proteins for W7K8C0 (Plasmodium falciparum (isolate NF54)) Explore W7K8C0  Go to UniProtKB:  W7K8C0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1IRI (Subject of Investigation/LOI)	B [auth A]	4-(aminomethyl)-1-[5-(2-methoxy-6-propan-2-yl-pyridin-3-yl)imidazo[2,1-b][1,3,4]thiadiazol-2-yl]piperidin-4-ol C19 H26 N6 O2 S JYHSRMKXBAPFST-UHFFFAOYSA-N
CL	C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.255 (Depositor), 0.257 (DCC) 
• R-Value Work:  0.207 (Depositor), 0.208 (DCC) 
• R-Value Observed: 0.212 (Depositor) 

Space Group: P 6₃ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.012	α = 90
b = 82.012	β = 90
c = 127.851	γ = 120

Software Package:

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

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-10-15 
Deposition Author(s): Mortensen, S., Sondermann, H.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-10-15
  Type: Initial release