8CDM

Plasmodium falciparum Myosin A full-length, post-rigor state complexed to the inhibitor KNX-002

• PDB DOI: https://doi.org/10.2210/pdb8CDM/pdb

• Classification: MOTOR PROTEIN
• Organism(s): Plasmodium falciparum
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2023-01-31 Released: 2024-02-21 
• Deposition Author(s): Moussaoui, D., Robblee, J.P., Robert-Paganin, J., Auguin, D., Fisher, F., Fagnant, P.M., MacFarlane, J.E., Mueller-Dieckmann, C., Baum, J., Trybus, K.M., Houdusse, A.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.248 
• R-Value Work: 0.196 
• R-Value Observed: 0.199 

Literature

Plasmodium falciparum Myosin A full-length, post-rigor state complexed to the inhibitor KNX-002

Moussaoui, D., Robblee, J.P., Robert-Paganin, J., Auguin, D., Fisher, F., Fagnant, P.M., MacFarlane, J.E., Schaletzky, J., Wehri, E., Mueller-Dieckmann, C., Baum, J., Trybus, K.M., Houdusse, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

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

Biological Assembly Evidence: SAXS

Macromolecule Content

• Total Structure Weight: 132.32 kDa 
• Atom Count: 8,946 
• Modelled Residue Count: 1,069 
• Deposited Residue Count: 1,156 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Myosin-A	A	818	Plasmodium falciparum	Mutation(s): 0  Gene Names: MyoA, PF13_0233, PF3D7_1342600
UniProt
Find proteins for Q8IDR3 (Plasmodium falciparum (isolate 3D7)) Explore Q8IDR3  Go to UniProtKB:  Q8IDR3

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Myosin A tail domain interacting protein	B	204	Plasmodium falciparum	Mutation(s): 0  Gene Names: PF3D7_1246400
UniProt
Find proteins for Q8I4W8 (Plasmodium falciparum (isolate 3D7)) Explore Q8I4W8  Go to UniProtKB:  Q8I4W8

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Myosin essential light chain ELC	C [auth E]	134	Plasmodium falciparum	Mutation(s): 0  Gene Names: CK202_4702
UniProt
Find proteins for A0A2I0BQX1 (Plasmodium falciparum (isolate NF54)) Explore A0A2I0BQX1  Go to UniProtKB:  A0A2I0BQX1

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
KQ0 (Subject of Investigation/LOI)	E [auth A]	1-(4-methoxyphenyl)-~{N}-[(3-thiophen-2-yl-1~{H}-pyrazol-4-yl)methyl]cyclopropan-1-amine C18 H19 N3 O S CXRMCTBDMZVPNE-UHFFFAOYSA-N
PG4	F [auth A]	TETRAETHYLENE GLYCOL C8 H18 O5 UWHCKJMYHZGTIT-UHFFFAOYSA-N
EDO	D [auth A], G [auth E]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	A	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.248 
• R-Value Work: 0.196 
• R-Value Observed: 0.199 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.931	α = 90
b = 114.409	β = 90
c = 170.332	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-02-21 
Deposition Author(s): Moussaoui, D., Robblee, J.P., Robert-Paganin, J., Auguin, D., Fisher, F., Fagnant, P.M., MacFarlane, J.E., Mueller-Dieckmann, C., Baum, J., Trybus, K.M., Houdusse, A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01AI 132378

Revision History  

• Version 1.0: 2024-02-21
  Type: Initial release