9GDF | pdb_00009gdf

Chloride bound structure of oxidized ba3-type cytochrome c oxidase confirmed by single-wavelength anomalous diffraction

PDB DOI: https://doi.org/10.2210/pdb9GDF/pdb

Classification: OXIDOREDUCTASE
Organism(s): Thermus thermophilus
Expression System: Thermus thermophilus HB8
Mutation(s): No
Membrane Protein: Yes MemProtMD

Deposited: 2024-08-05 Released: 2025-08-13
Deposition Author(s): Kabbinale, A., Johannesson, J., Finke, D.
Funding Organization(s): European Research Council (ERC), Swedish Research Council

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.28 Å
R-Value Free:
0.197 (Depositor), 0.203 (DCC)
R-Value Work:
0.153 (Depositor), 0.167 (DCC)
R-Value Observed:
0.155 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Structural changes in cytochrome c oxidase following the reduction of dioxygen to water

Zoric, D., Johannesson, J., Kabbinale, A., Sandelin, E., Vallejos, A., Ghosh, S., Dahl, P., Ronnholm, J., Bjelcic, M., Finke, A., Bostedt, C., Bacellar Cases da Silveira, C., Beale, E., Cirelli, C., Johnson, P., Ozerov, D., Boutet, S., Batyuk, A., Kupitz, C., Peck, A., Poitevin, F., Sierra, R., Lisova, S., Wallentin, C., Branden, G., Ostojic, L., Glerup, J., Neutze, R.

To be published.

Macromolecule Content

Total Structure Weight: 93.04 kDa
Atom Count: 6,402
Modeled Residue Count: 752
Deposited Residue Count: 771
Unique protein chains: 3

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytochrome c oxidase subunit 1	A	569	Thermus thermophilus	Mutation(s): 0 Gene Names: cbaA, TTHA1135 EC: 1.9.3.1 (PDB Primary Data), 7.1.1.9 (UniProt) Membrane Entity: Yes
UniProt
Find proteins for Q5SJ79 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SJ79 Go to UniProtKB: Q5SJ79
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q5SJ79
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytochrome c oxidase subunit 2	B	168	Thermus thermophilus	Mutation(s): 0 Gene Names: cbaB, ctaC, TTHA1134 EC: 1.9.3.1 (PDB Primary Data), 7.1.1.9 (UniProt) Membrane Entity: Yes
UniProt
Find proteins for Q5SJ80 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore Q5SJ80 Go to UniProtKB: Q5SJ80
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q5SJ80
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

| 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytochrome c oxidase polypeptide 2A	C	34	Thermus thermophilus	Mutation(s): 0 Gene Names: cbaD, TTHA1133 EC: 7.1.1.9 Membrane Entity: Yes
UniProt
Find proteins for P82543 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)) Explore P82543 Go to UniProtKB: P82543
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P82543
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 6 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
HAS (Subject of Investigation/LOI) Query on HAS 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]	HEME-AS C₅₄ H₆₄ Fe N₄ O₆ PDYODZVCODUKFH-ZOMLSHGTSA-L		Interactions Focus chain F [auth A] Interactions & Density Focus chain F [auth A]
HEM (Subject of Investigation/LOI) Query on HEM 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]	PROTOPORPHYRIN IX CONTAINING FE C₃₄ H₃₂ Fe N₄ O₄ KABFMIBPWCXCRK-RGGAHWMASA-L		Interactions Focus chain E [auth A] Interactions & Density Focus chain E [auth A]
OLC Query on OLC Download:Ideal Coordinates CCD File SDF format, chain X [auth B] SDF format, chain W [auth B] SDF format, chain U [auth B] SDF format, chain R [auth A] SDF format, chain Q [auth A] SDF format, chain P [auth A] SDF format, chain O [auth A] SDF format, chain N [auth A] SDF format, chain M [auth A] SDF format, chain L [auth A] SDF format, chain K [auth A] SDF format, chain J [auth A] SDF format, chain I [auth A] SDF format, chain H [auth A] SDF format, chain G [auth A] MOL2 format, chain X [auth B] MOL2 format, chain W [auth B] MOL2 format, chain U [auth B] MOL2 format, chain R [auth A] MOL2 format, chain Q [auth A] MOL2 format, chain P [auth A] MOL2 format, chain O [auth A] MOL2 format, chain N [auth A] MOL2 format, chain M [auth A] MOL2 format, chain L [auth A] MOL2 format, chain K [auth A] MOL2 format, chain J [auth A] MOL2 format, chain I [auth A] MOL2 format, chain H [auth A] MOL2 format, chain G [auth A] mmCIF format, chain X [auth B] mmCIF format, chain W [auth B] mmCIF format, chain U [auth B] mmCIF format, chain R [auth A] mmCIF format, chain Q [auth A] mmCIF format, chain P [auth A] mmCIF format, chain O [auth A] mmCIF format, chain N [auth A] mmCIF format, chain M [auth A] mmCIF format, chain L [auth A] mmCIF format, chain K [auth A] mmCIF format, chain J [auth A] mmCIF format, chain I [auth A] mmCIF format, chain H [auth A] mmCIF format, chain G [auth A]	G [auth A] H [auth A] I [auth A] J [auth A] K [auth A] G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A], P [auth A], Q [auth A], R [auth A], U [auth B], W [auth B], X [auth B]	(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate C₂₁ H₄₀ O₄ RZRNAYUHWVFMIP-GDCKJWNLSA-N		Interactions Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain U [auth B] Focus chain W [auth B] Focus chain X [auth B] Interactions & Density Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain U [auth B] Focus chain W [auth B] Focus chain X [auth B]
CUA (Subject of Investigation/LOI) Query on CUA Download:Ideal Coordinates CCD File SDF format, chain V [auth B] MOL2 format, chain V [auth B] mmCIF format, chain V [auth B]	V [auth B]	DINUCLEAR COPPER ION Cu₂ ALKZAGKDWUSJED-UHFFFAOYSA-N		Interactions Focus chain V [auth B] Interactions & Density Focus chain V [auth B]
CU (Subject of Investigation/LOI) Query on CU Download:Ideal Coordinates CCD File SDF format, chain D [auth A] MOL2 format, chain D [auth A] mmCIF format, chain D [auth A]	D [auth A]	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N		Interactions Focus chain D [auth A] Interactions & Density Focus chain D [auth A]
CL (Subject of Investigation/LOI) Query on CL Download:Ideal Coordinates CCD File SDF format, chain T [auth A] SDF format, chain S [auth A] MOL2 format, chain T [auth A] MOL2 format, chain S [auth A] mmCIF format, chain T [auth A] mmCIF format, chain S [auth A]	S [auth A], T [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain S [auth A] Focus chain T [auth A] Interactions & Density Focus chain S [auth A] Focus chain T [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.28 Å
R-Value Free: 0.197 (Depositor), 0.203 (DCC)
R-Value Work: 0.153 (Depositor), 0.167 (DCC)
R-Value Observed: 0.155 (Depositor)

Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.688	α = 90
b = 98.34	β = 127.58
c = 94.085	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
STARANISO	data scaling
PHASER	phasing

Structure Validation

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Ligand Structure Quality Assessment

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2025-08-13

Deposition Author(s):

Kabbinale, A.

Johannesson, J.

Finke, D.

Funding Organization	Location	Grant Number
European Research Council (ERC)	European Union	789030
European Research Council (ERC)	European Union	963936
Swedish Research Council	Sweden	2021-05662
Swedish Research Council	Sweden	2015-00560