SAXSdb — 5aiu

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

E3 UBIQUITIN-PROTEIN LIGASE RNF4

RATTUS NORVEGICUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 5	UBIQUITIN-CONJUGATING ENZYME E2 N × 2 （P61088） POLYUBIQUITIN-C × 2 （P0CG48） ZINC ION × 4 1,2-ETHANEDIOL × 6 water × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RNF4_RAT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–68； UniProt 131–194 Author chain A； PDBConstruct 70–133； UniProt 131–194

UBIQUITIN-CONJUGATING ENZYME E2 N

HOMO SAPIENS

UniProt P61088

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 5	E3 UBIQUITIN-PROTEIN LIGASE RNF4 × 1 （O88846） POLYUBIQUITIN-C × 2 （P0CG48） ZINC ION × 4 1,2-ETHANEDIOL × 6 water × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UBE2N_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 3–154； UniProt 1–152 Author chain E； PDBConstruct 3–154； UniProt 1–152

POLYUBIQUITIN-C

HOMO SAPIENS

UniProt P0CG48

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 5	E3 UBIQUITIN-PROTEIN LIGASE RNF4 × 1 （O88846） UBIQUITIN-CONJUGATING ENZYME E2 N × 2 （P61088） ZINC ION × 4 1,2-ETHANEDIOL × 6 water × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UBC_HUMAN
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–76； UniProt 1–76 Author chain F； PDBConstruct 1–76； UniProt 1–76

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	5aiu
Deposition date deposition_date	2015-02-17
Structure title title	A complex of RNF4-RING domain, Ubc13-Ub (isopeptide crosslink)
Keywords keywords	LIGASE-SIGNALING PROTEIN COMPLEX, COMPLEX, FUSION PROTEIN; LIGASE/SIGNALING PROTEIN
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.

5aiu__assembly_1__model_1

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

Download this curve (.dat)

5aiu__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5aiu__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.40 Å
Rg (electron density)	31.38 Å
Total Rg	31.40 Å
Atom count	4552
Residues	575
Excluded volume	81611 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5aiu__assembly_1__model_1`	pentameric （5）	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 (6)

Entity 1 Entity 1 polymer

Description description	E3 UBIQUITIN-PROTEIN LIGASE RNF4
Molecular weight formula_weight	14758.2 kDa
EC 编号 ec_number	6.3.2.-
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	4591

GAMGSGTVSCPICMDGYSEIVQNGRLIVSTECGHVFCSQCLRDSLKNANTCPTCRKKINHKRYHPIYIGSGTVSCPICMDGYSEIVQNGRLIVSTECGHVFCSQCLRDSLKNANTCPTCRKKINHKRYHPIYI

Source Source

Source organism organism	RATTUS NORVEGICUS
Common name common_name	NORWAY RAT
NCBI taxonomy ID ncbi_taxonomy_id	10116
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 polymer

Description description	UBIQUITIN-CONJUGATING ENZYME E2 N
Molecular weight formula_weight	17253.8 kDa
EC 编号 ec_number	6.3.2.19
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,E

GAMAGLPRRIIKETQRLLAEPVPGIKAEPDESNARYFHVVIAGPQDSPFEGGTFKLELFLPEEYPMAAPKVRFMTKIYHPNVDKLGRIKLDILADKWSPALQIRTVLLSIQALLSAPNPDDPLANDVAEQWKTNEAQAIETARAWTRLYAMNNI

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 polymer

Description description	POLYUBIQUITIN-C
Molecular weight formula_weight	8576.8 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,F

MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG

Source Source

Source organism organism	HOMO SAPIENS
Common name common_name	HUMAN
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	ESCHERICHIA COLI

Entity 4 Entity 4 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 non-polymer

Description description	1,2-ETHANEDIOL
Molecular weight formula_weight	62.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	33

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6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d5aiub1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.20 — UBC-like
Superfamily Superfamily superfamily	d.20.1 — UBC-like
Family Family family	d.20.1.1 — UBC-related

Domain ID domain_id	d5aiub2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d5aiuc_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamily	d.15.1 — Ubiquitin-like
Family Family family	d.15.1.1 — Ubiquitin-related

Domain ID domain_id	d5aiue1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.20 — UBC-like
Superfamily Superfamily superfamily	d.20.1 — UBC-like
Family Family family	d.20.1.1 — UBC-related

Domain ID domain_id	d5aiue2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d5aiuf_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamily	d.15.1 — Ubiquitin-like
Family Family family	d.15.1.1 — Ubiquitin-related

CATH v4.4 (3 domains)

Domain ID domain_id	5aiuA00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	40 — Herpes Virus-1
Homologous superfamily homologous superfamily	10 — Zinc/RING finger domain, C3HC4 (zinc finger)

Domain ID domain_id	5aiuB00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	110 — Ubiquitin Conjugating Enzyme
Homologous superfamily homologous superfamily	10 — Ubiquitin Conjugating Enzyme

Domain ID domain_id	5aiuE00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	110 — Ubiquitin Conjugating Enzyme
Homologous superfamily homologous superfamily	10 — Ubiquitin Conjugating Enzyme

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Unit-cell length a length_a	69.190 Å
Unit-cell length b length_b	169.210 Å
Unit-cell length c length_c	52.620 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	8

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.210 Å
Low-resolution limit resolution_low	32.020 Å
R factor r_factor	0.2186
R_work r_work	0.2166
R_free r_free	0.2554

A complex of RNF4-RING domain, Ubc13-Ub (isopeptide crosslink)

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

E3 UBIQUITIN-PROTEIN LIGASE RNF4

State in the Current Structure

Other States of the Same Protein in the Database

UBIQUITIN-CONJUGATING ENZYME E2 N

State in the Current Structure

Other States of the Same Protein in the Database

POLYUBIQUITIN-C

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

5aiu__assembly_1__model_1

5aiu__assembly_1__model_1 | I(q)

5aiu__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (1)

A complex of RNF4-RING domain, Ubc13-Ub (isopeptide crosslink)

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

E3 UBIQUITIN-PROTEIN LIGASE RNF4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

UBIQUITIN-CONJUGATING ENZYME E2 N

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

POLYUBIQUITIN-C

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

5aiu__assembly_1__model_1

5aiu__assembly_1__model_1 | I(q)

5aiu__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

CATH v4.4 (3 domains)

7. Citations (1)