1IRN: Rubredoxin

Rubredoxin (ZN-substituted) at 1.2 Å resolution. Determined by X-ray diffraction at 1.2 Å resolution. Released 3 Apr 1996.

Method: X-ray diffraction
Resolution: 1.2 Å
Organism: Clostridium pasteurianum
Chains: 1
Atoms: 510
Mol. weight: 6.12 kDa
Ligands: ZN
Released: 3 Apr 1996

Explore 1IRN in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1IRN contains 3 α-helices and 7 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 3 helices, 7 β-strands

Element	Residues	Length	Sheet
β-strand	4-6	3	1
β-strand	12-13	2	1
β-strand	19	1	2
α-helix	20-22	3
β-strand	24	1	2
α-helix	30-32	3
β-strand	38	1	3
β-strand	45	1	3
α-helix	46-48	3
β-strand	49-51	3	1

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Rubredoxin	A	protein	54	Clostridium pasteurianum	P00268 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>1IRN_1 RUBREDOXIN (chains A)
MKKYTCTVCGYIYNPEDGDPDNGVNPGTDFKDIPDDWVCPLCGVGKDQFEEVEE

Ligands and cofactors

ID	Name	Formula	Copies
ZN	Zinc ion	Zn	1

Primary citation

Zinc- and iron-rubredoxins from Clostridium pasteurianum at atomic resolution: a high-precision model of a ZnS4 coordination unit in a protein. Dauter, Z., Wilson, K.S., Sieker, L.C. et al. Proc Natl Acad Sci U S A (1996) 93:8836-8840. DOI 10.1073/pnas.93.17.8836 · PubMed

Other PDB entries of the same protein (UniProt P00268 (AlphaFold model), which also has an AlphaFold model), best resolution first:

2PVE 0.79 Å, NMR and X-ray Analysis of Structural Additivity in Metal Binding Site-Swapped Hybrids of…
1IRO 1.1 Å, Rubredoxin (oxidized, fe(iii)) at 1.1 Å resolution
4RXN 1.2 Å, Crystallographic refinement of rubredoxin at 1.2 Å resolution
5RXN 1.2 Å, Combined crystallographic refinement and energy minimization of rubredoxin at 1.2 Å…
1SMM 1.36 Å, Crystal Structure of Cp Rd L41A mutant in oxidized state
1SMW 1.38 Å, Crystal Structure of Cp Rd L41A mutant in reduced state 2 (soaked)
1SMU 1.43 Å, Crystal Structure of Cp Rd L41A mutant in reduced state 1 (drop-reduced)
1B13 1.5 Å, Clostridium pasteurianum rubredoxin G10A mutant
1FHH 1.5 Å, X-ray crystal structure of oxidized rubredoxin
1FHM 1.5 Å, X-ray crystal structure of reduced rubredoxin
1R0I 1.5 Å, cadmium-substituted rubredoxin
1T9P 1.5 Å, Crystal Structure of V44A, G45P Cp Rubredoxin

Browse structure collections

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