9MT0 | pdb_00009mt0

1.2 A Crystal Structure of Housefly cytochrome c at pH 11

• PDB DOI: https://doi.org/10.2210/pdb9MT0/pdb

• Classification: ELECTRON TRANSPORT
• Organism(s): Musca domestica
• Mutation(s): No 


• Deposited: 2025-01-10 Released: 2025-02-12 
• Deposition Author(s): Zafreen, L., Huang, L.-S., Luemmen, P., Berry, E.A.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 
  0.165 (Depositor), 0.168 (DCC) 
• R-Value Work: 
  0.126 (Depositor), 0.131 (DCC) 
• R-Value Observed: 
  0.127 (Depositor) 

Starting Model: experimental

Literature

Crystal Structure of Insect Cytochrome c at different pH values.

Zafreen, L., Huang, L.-S., Luemmen, P., Berry, E.A.

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)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 24.6 kDa 
• Atom Count: 2,153 
• Modeled Residue Count: 214 
• Deposited Residue Count: 214 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytochrome c	A, B	107	Musca domestica	Mutation(s): 0
UniProt
Find proteins for A0A1I8N8V4 (Musca domestica) Explore A0A1I8N8V4  Go to UniProtKB:  A0A1I8N8V4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEC (Subject of Investigation/LOI)	C [auth A], E [auth B]	HEME C C34 H34 Fe N4 O4 HXQIYSLZKNYNMH-LJNAALQVSA-N
EOH	D [auth A]	ETHANOL C2 H6 O LFQSCWFLJHTTHZ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free:  0.165 (Depositor), 0.168 (DCC) 
• R-Value Work:  0.126 (Depositor), 0.131 (DCC) 
• R-Value Observed: 0.127 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.876	α = 90
b = 58.634	β = 106.772
c = 51.674	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-02-12 
Deposition Author(s): Zafreen, L., Huang, L.-S., Luemmen, P., Berry, E.A.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-02-12
  Type: Initial release