SAXSdb — 2x4i

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

UNCHARACTERIZED PROTEIN 114

SULFOLOBUS ISLANDICUS RUDIVIRUS 1 VARIANT XX

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Y114_SIRV1
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–114； UniProt 1–114 Author chain B； PDBConstruct 1–114； UniProt 1–114 Author chain C； PDBConstruct 1–114； UniProt 1–114 Author chain D； PDBConstruct 1–114； UniProt 1–114

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	2x4i
Deposition date deposition_date	2010-01-31
Structure title title	ORF 114a from Sulfolobus islandicus rudivirus 1
Keywords keywords	UNKNOWN FUNCTION, DUF1874, ARCHEAL VIRUS; UNKNOWN FUNCTION
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.

2x4i__assembly_1__model_1

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

Download this curve (.dat)

2x4i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2x4i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.01 Å
Rg (electron density)	18.57 Å
Total Rg	19.65 Å
Atom count	1639
Residues	201
Excluded volume	29713 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2x4i__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2x4i__assembly_2__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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2x4ia_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.0 — automated matches

Domain ID domain_id	d2x4ib_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.0 — automated matches

Domain ID domain_id	d2x4ic_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.0 — automated matches

Domain ID domain_id	d2x4id_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.321 — STIV B116-like
Superfamily Superfamily superfamily	d.321.1 — STIV B116-like
Family Family family	d.321.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id	2x4iA00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

Domain ID domain_id	2x4iB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

Domain ID domain_id	2x4iC00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

Domain ID domain_id	2x4iD00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11170 — Uncharacterised protein PF08960, DUF1874

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Unit-cell length a length_a	48.790 Å
Unit-cell length b length_b	48.790 Å
Unit-cell length c length_c	195.270 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	P 43
Space-group number int_tables_number	78
Crystal system crystal_system	—

Resolution resolution	2.200 Å
Low-resolution limit resolution_low	27.080 Å
R factor r_factor	0.2432
R_work r_work	0.2412
R_free r_free	0.2774

Description description	UNCHARACTERIZED PROTEIN 114
Molecular weight formula_weight	13243.3 kDa
Source method src_method	man
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	3366

ORF 114a from Sulfolobus islandicus rudivirus 1

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

UNCHARACTERIZED PROTEIN 114

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

2x4i__assembly_1__model_1

2x4i__assembly_1__model_1 | I(q)

2x4i__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	SULFOLOBUS ISLANDICUS RUDIVIRUS 1 VARIANT XX
NCBI taxonomy ID ncbi_taxonomy_id	282066
Host organism host_organism	ESCHERICHIA COLI

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	31

ORF 114a from Sulfolobus islandicus rudivirus 1

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

UNCHARACTERIZED PROTEIN 114

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

2x4i__assembly_1__model_1

2x4i__assembly_1__model_1 | I(q)

2x4i__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)