9S7W | pdb_00009s7w

Zinc-bound [FeFe]-hydrogenase CpI from Clostridium pasteurianum

PDB DOI: https://doi.org/10.2210/pdb9S7W/pdb

Classification: OXIDOREDUCTASE
Organism(s): Clostridium pasteurianum
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-08-05 Released: 2026-10-28
Deposition Author(s): Duan, J., Yang, Z., Hofmann, E., Happe, T.
Funding Organization(s): German Research Foundation (DFG)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.65 Å
R-Value Free:
0.211 (Depositor), 0.215 (DCC)
R-Value Work:
0.161 (Depositor), 0.169 (DCC)
R-Value Observed:
0.163 (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

A Histidine-Mediated, Pendulum-Like Proton Transport Mechanism Is Required for the High Catalytic Activity of [FeFe]-Hydrogenases

Duan, J., Yang, Z., Lampret, O., Arrigoni, F., Impel, L.V., Zheng, F., Kleinhaus, J., Apfel, U.P., Greco, C., De Gioia, L., Hofmann, E., Hemschemeier, A., Happe, T.

(2026) J Am Chem Soc

DOI: https://doi.org/10.1021/jacs.6c14410

Macromolecule Content

Total Structure Weight: 135.86 kDa
Atom Count: 9,693
Modeled Residue Count: 1,151
Deposited Residue Count: 1,168
Unique protein chains: 1

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Iron hydrogenase 1	A, B	584	Clostridium pasteurianum	Mutation(s): 0 EC: 1.12.7.2
UniProt
Find proteins for P29166 (Clostridium pasteurianum) Explore P29166 Go to UniProtKB: P29166
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P29166
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 7 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
402 (Subject of Investigation/LOI) Query on 402 Download:Ideal Coordinates CCD File SDF format, chain AA [auth B] SDF format, chain C [auth A] MOL2 format, chain AA [auth B] MOL2 format, chain C [auth A] mmCIF format, chain AA [auth B] mmCIF format, chain C [auth A]	AA [auth B], C [auth A]	dicarbonyl[bis(cyanide-kappaC)]-mu-(iminodimethanethiolatato-1kappaS:2kappaS)-mu-(oxomethylidene)diiron(2+) C₇ H₅ Fe₂ N₃ O₃ S₂ LJPDYWPSPOWMIB-UHFFFAOYSA-N		Interactions Focus chain AA [auth B] Focus chain C [auth A] Interactions & Density Focus chain AA [auth B] Focus chain C [auth A]
SF4 (Subject of Investigation/LOI) Query on SF4 Download:Ideal Coordinates CCD File SDF format, chain BA [auth B] SDF format, chain CA [auth B] SDF format, chain D [auth A] SDF format, chain DA [auth B] SDF format, chain E [auth A] SDF format, chain EA [auth B] SDF format, chain F [auth A] SDF format, chain G [auth A] MOL2 format, chain BA [auth B] MOL2 format, chain CA [auth B] MOL2 format, chain D [auth A] MOL2 format, chain DA [auth B] MOL2 format, chain E [auth A] MOL2 format, chain EA [auth B] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] mmCIF format, chain BA [auth B] mmCIF format, chain CA [auth B] mmCIF format, chain D [auth A] mmCIF format, chain DA [auth B] mmCIF format, chain E [auth A] mmCIF format, chain EA [auth B] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A]	BA [auth B] CA [auth B] D [auth A] DA [auth B] E [auth A] BA [auth B], CA [auth B], D [auth A], DA [auth B], E [auth A], EA [auth B], F [auth A], G [auth A]	IRON/SULFUR CLUSTER Fe₄ S₄ LJBDFODJNLIPKO-UHFFFAOYSA-N		Interactions Focus chain BA [auth B] Focus chain CA [auth B] Focus chain D [auth A] Focus chain DA [auth B] Focus chain E [auth A] Focus chain EA [auth B] Focus chain F [auth A] Focus chain G [auth A] Interactions & Density Focus chain BA [auth B] Focus chain CA [auth B] Focus chain D [auth A] Focus chain DA [auth B] Focus chain E [auth A] Focus chain EA [auth B] Focus chain F [auth A] Focus chain G [auth A]
FES (Subject of Investigation/LOI) Query on FES Download:Ideal Coordinates CCD File SDF format, chain FA [auth B] SDF format, chain H [auth A] MOL2 format, chain FA [auth B] MOL2 format, chain H [auth A] mmCIF format, chain FA [auth B] mmCIF format, chain H [auth A]	FA [auth B], H [auth A]	FE2/S2 (INORGANIC) CLUSTER Fe₂ S₂ NIXDOXVAJZFRNF-UHFFFAOYSA-N		Interactions Focus chain FA [auth B] Focus chain H [auth A] Interactions & Density Focus chain FA [auth B] Focus chain H [auth A]
GOL Query on GOL Download:Ideal Coordinates CCD File SDF format, chain HA [auth B] SDF format, chain J [auth A] MOL2 format, chain HA [auth B] MOL2 format, chain J [auth A] mmCIF format, chain HA [auth B] mmCIF format, chain J [auth A]	HA [auth B], J [auth A]	GLYCEROL C₃ H₈ O₃ PEDCQBHIVMGVHV-UHFFFAOYSA-N		Interactions Focus chain HA [auth B] Focus chain J [auth A] Interactions & Density Focus chain HA [auth B] Focus chain J [auth A]
ZN (Subject of Investigation/LOI) Query on ZN Download:Ideal Coordinates CCD File SDF format, chain IA [auth B] SDF format, chain JA [auth B] SDF format, chain KA [auth B] SDF format, chain L [auth A] SDF format, chain LA [auth B] SDF format, chain M [auth A] SDF format, chain MA [auth B] SDF format, chain N [auth A] SDF format, chain VA [auth B] SDF format, chain W [auth A] SDF format, chain X [auth A] SDF format, chain XA [auth B] SDF format, chain Z [auth A] SDF format, chain K [auth A] MOL2 format, chain IA [auth B] MOL2 format, chain JA [auth B] MOL2 format, chain KA [auth B] MOL2 format, chain L [auth A] MOL2 format, chain LA [auth B] MOL2 format, chain M [auth A] MOL2 format, chain MA [auth B] MOL2 format, chain N [auth A] MOL2 format, chain VA [auth B] MOL2 format, chain W [auth A] MOL2 format, chain X [auth A] MOL2 format, chain XA [auth B] MOL2 format, chain Z [auth A] MOL2 format, chain K [auth A] mmCIF format, chain IA [auth B] mmCIF format, chain JA [auth B] mmCIF format, chain KA [auth B] mmCIF format, chain L [auth A] mmCIF format, chain LA [auth B] mmCIF format, chain M [auth A] mmCIF format, chain MA [auth B] mmCIF format, chain N [auth A] mmCIF format, chain VA [auth B] mmCIF format, chain W [auth A] mmCIF format, chain X [auth A] mmCIF format, chain XA [auth B] mmCIF format, chain Z [auth A] mmCIF format, chain K [auth A]	IA [auth B] JA [auth B] K [auth A] KA [auth B] L [auth A] IA [auth B], JA [auth B], K [auth A], KA [auth B], L [auth A], LA [auth B], M [auth A], MA [auth B], N [auth A], VA [auth B], W [auth A], X [auth A], XA [auth B], Z [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain IA [auth B] Focus chain JA [auth B] Focus chain K [auth A] Focus chain KA [auth B] Focus chain L [auth A] Focus chain LA [auth B] Focus chain M [auth A] Focus chain MA [auth B] Focus chain N [auth A] Focus chain VA [auth B] Focus chain W [auth A] Focus chain X [auth A] Focus chain XA [auth B] Focus chain Z [auth A] Interactions & Density Focus chain IA [auth B] Focus chain JA [auth B] Focus chain K [auth A] Focus chain KA [auth B] Focus chain L [auth A] Focus chain LA [auth B] Focus chain M [auth A] Focus chain MA [auth B] Focus chain N [auth A] Focus chain VA [auth B] Focus chain W [auth A] Focus chain X [auth A] Focus chain XA [auth B] Focus chain Z [auth A]
CL Query on CL Download:Ideal Coordinates CCD File SDF format, chain NA [auth B] SDF format, chain OA [auth B] SDF format, chain PA [auth B] SDF format, chain Q [auth A] SDF format, chain QA [auth B] SDF format, chain R [auth A] SDF format, chain RA [auth B] SDF format, chain S [auth A] SDF format, chain T [auth A] SDF format, chain TA [auth B] SDF format, chain U [auth A] SDF format, chain WA [auth B] SDF format, chain Y [auth A] SDF format, chain SA [auth B] SDF format, chain P [auth A] SDF format, chain O [auth A] MOL2 format, chain NA [auth B] MOL2 format, chain OA [auth B] MOL2 format, chain PA [auth B] MOL2 format, chain Q [auth A] MOL2 format, chain QA [auth B] MOL2 format, chain R [auth A] MOL2 format, chain RA [auth B] MOL2 format, chain S [auth A] MOL2 format, chain T [auth A] MOL2 format, chain TA [auth B] MOL2 format, chain U [auth A] MOL2 format, chain WA [auth B] MOL2 format, chain Y [auth A] MOL2 format, chain SA [auth B] MOL2 format, chain P [auth A] MOL2 format, chain O [auth A] mmCIF format, chain NA [auth B] mmCIF format, chain OA [auth B] mmCIF format, chain PA [auth B] mmCIF format, chain Q [auth A] mmCIF format, chain QA [auth B] mmCIF format, chain R [auth A] mmCIF format, chain RA [auth B] mmCIF format, chain S [auth A] mmCIF format, chain T [auth A] mmCIF format, chain TA [auth B] mmCIF format, chain U [auth A] mmCIF format, chain WA [auth B] mmCIF format, chain Y [auth A] mmCIF format, chain SA [auth B] mmCIF format, chain P [auth A] mmCIF format, chain O [auth A]	NA [auth B] O [auth A] OA [auth B] P [auth A] PA [auth B] NA [auth B], O [auth A], OA [auth B], P [auth A], PA [auth B], Q [auth A], QA [auth B], R [auth A], RA [auth B], S [auth A], SA [auth B], T [auth A], TA [auth B], U [auth A], WA [auth B], Y [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain NA [auth B] Focus chain O [auth A] Focus chain OA [auth B] Focus chain P [auth A] Focus chain PA [auth B] Focus chain Q [auth A] Focus chain QA [auth B] Focus chain R [auth A] Focus chain RA [auth B] Focus chain S [auth A] Focus chain SA [auth B] Focus chain T [auth A] Focus chain TA [auth B] Focus chain U [auth A] Focus chain WA [auth B] Focus chain Y [auth A] Interactions & Density Focus chain NA [auth B] Focus chain O [auth A] Focus chain OA [auth B] Focus chain P [auth A] Focus chain PA [auth B] Focus chain Q [auth A] Focus chain QA [auth B] Focus chain R [auth A] Focus chain RA [auth B] Focus chain S [auth A] Focus chain SA [auth B] Focus chain T [auth A] Focus chain TA [auth B] Focus chain U [auth A] Focus chain WA [auth B] Focus chain Y [auth A]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain GA [auth B] SDF format, chain I [auth A] SDF format, chain V [auth A] SDF format, chain UA [auth B] MOL2 format, chain GA [auth B] MOL2 format, chain I [auth A] MOL2 format, chain V [auth A] MOL2 format, chain UA [auth B] mmCIF format, chain GA [auth B] mmCIF format, chain I [auth A] mmCIF format, chain V [auth A] mmCIF format, chain UA [auth B]	GA [auth B], I [auth A], UA [auth B], V [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain GA [auth B] Focus chain I [auth A] Focus chain UA [auth B] Focus chain V [auth A] Interactions & Density Focus chain GA [auth B] Focus chain I [auth A] Focus chain UA [auth B] Focus chain V [auth A]