SAXSdb — 1sj1

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Ferredoxin

Pyrococcus furiosus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	COBALT HEXAMMINE(III) × 4 FE3-S4 CLUSTER × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FER_PYRFU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–66； UniProt 1–66 Author chain B； PDBConstruct 1–66； UniProt 1–66

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1sj1
Deposition date deposition_date	2004-03-02
Structure title title	The 1.5 A Resolution Crystal Structure of [Fe3S4]-Ferredoxin from the hyperthermophilic Archaeon Pyrococcus furiosus
Keywords keywords	thermostability, iron-sulfur cluster, hexammine cobalt(III), ELECTRON TRANSPORT; ELECTRON TRANSPORT
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1sj1__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1sj1__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1sj1__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	17.30 Å
Rg (electron density)	16.37 Å
Total Rg	17.21 Å
Atom count	1034
Residues	132
Excluded volume	18449 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1sj1__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	Ferredoxin
Molecular weight formula_weight	7171.0 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	1305

AWKVSVDQDTCIGDAICASLCPDVFEMNDEGKAQPKVEVIEDEELYNCAKEAMEACPVSAITIEEA

Source Source

Source organism organism	Pyrococcus furiosus
NCBI taxonomy ID ncbi_taxonomy_id	2261
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	COBALT HEXAMMINE(III)
Molecular weight formula_weight	161.1 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	FE3-S4 CLUSTER
Molecular weight formula_weight	295.8 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	146

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1sj1a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.1 — 4Fe-4S ferredoxins
Family Family family	d.58.1.4 — Single 4Fe-4S cluster ferredoxin

Domain ID domain_id	d1sj1b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.1 — 4Fe-4S ferredoxins
Family Family family	d.58.1.4 — Single 4Fe-4S cluster ferredoxin

CATH v4.4 (2 domains)

Domain ID domain_id	1sj1A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1sj1B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	31.230 Å
Unit-cell length b length_b	47.511 Å
Unit-cell length c length_c	52.029 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	103.86 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.500 Å
Low-resolution limit resolution_low	50.640 Å
R factor r_factor	0.1953
R_work r_work	0.1938
R_free r_free	0.2227

The 1.5 A Resolution Crystal Structure of [Fe3S4]-Ferredoxin from the hyperthermophilic Archaeon Pyrococcus furiosus

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ferredoxin

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1sj1__assembly_1__model_1

1sj1__assembly_1__model_1 | I(q)

1sj1__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

The 1.5 A Resolution Crystal Structure of [Fe3S4]-Ferredoxin from the hyperthermophilic Archaeon Pyrococcus furiosus

1. Protein Identity and Related Structures Protein Identity & Related Structures

Ferredoxin

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1sj1__assembly_1__model_1

1sj1__assembly_1__model_1 | I(q)

1sj1__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)