2xbb

Nedd4 HECT:Ub complex

Method: X-RAY DIFFRACTION

▼

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

E3 UBIQUITIN-PROTEIN LIGASE NEDD4

HOMO SAPIENS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	UBIQUITIN × 1 （P0CG53） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	UBIQUITIN × 1 （P0CG53） GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	NEDD4_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–386； UniProt 519–900 Author chain B； PDBConstruct 5–386； UniProt 519–900

UBIQUITIN

OrganismNot specified

UniProt P0CG53

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	E3 UBIQUITIN-PROTEIN LIGASE NEDD4 × 1 （P46934） water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 2	E3 UBIQUITIN-PROTEIN LIGASE NEDD4 × 1 （P46934） GLYCEROL × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	UBB_BOVIN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–76； UniProt 1–76 Author chain D； 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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	2xbb
Deposition date deposition_date	2010-04-08
Structure title title	Nedd4 HECT:Ub complex
Keywords keywords	LIGASE-PROTEIN BINDING COMPLEX; LIGASE/PROTEIN BINDING
Experimental Method method	X-RAY DIFFRACTION

▼

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.

2xbb__assembly_1__model_1

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

Download this curve (.dat)

2xbb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2xbb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.55 Å
Rg (electron density)	26.63 Å
Total Rg	27.33 Å
Atom count	3756
Residues	452
Excluded volume	67016 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2xbb__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2xbb__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	E3 UBIQUITIN-PROTEIN LIGASE NEDD4
Molecular weight formula_weight	45782.1 kDa
EC 编号 ec_number	6.3.2.-
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	7659

GPLGSRDYKRKYEFFRRKLKKQNDIPNKFEMKLRRATVLEDSYRRIMGVKRADFLKARLWIEFDGEKGLDYGGVAREWFFLISKEMFNPYYGLFEYSATDNYTLQINPNSGLCNEDHLSYFKFIGRVAGMAVYHGKLLDGFFIRPFYKMMLHKPITLHDMESVDSEYYNSLRWILENDPTELDLRFIIDEELFGQTHQHELKNGGSEIVVTNKNKKEYIYLVIQWRFVNRIQKQMAAFKEGFFELIPQDLIKIFDENELELLMCGLGDVDVNDWREHTKYKNGYSANHQVIQWFWKAVLMMDSEKRIRLLQFVTGTSRVPMNGFAELYGSNGPQSFTVEQWGTPEKLPRAHTCFNRLDLPPYESFEELWDKLQMAIENTQGFDGVD

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 2 Entity 2 polymer

Description description	UBIQUITIN
Molecular weight formula_weight	8576.8 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

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

MQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGG

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 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	135

▼

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d2xbba_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.148 — Hect, E3 ligase catalytic domain
Superfamily Superfamily superfamily	d.148.1 — Hect, E3 ligase catalytic domain
Family Family family	d.148.1.0 — automated matches

Domain ID domain_id	d2xbbb_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.148 — Hect, E3 ligase catalytic domain
Superfamily Superfamily superfamily	d.148.1 — Hect, E3 ligase catalytic domain
Family Family family	d.148.1.0 — automated matches

Domain ID domain_id	d2xbbc_
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	d2xbbd_
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 (8 domains)

Domain ID domain_id	2xbbA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1750 — Hect, E3 ligase catalytic domain fold
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domains

Domain ID domain_id	2xbbA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	2160 — Hect, E3 ligase catalytic domain
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domain

Domain ID domain_id	2xbbA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	2410 — Hect, E3 ligase catalytic fold
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domain

Domain ID domain_id	2xbbB01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1750 — Hect, E3 ligase catalytic domain fold
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domains

Domain ID domain_id	2xbbB02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	2160 — Hect, E3 ligase catalytic domain
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domain

Domain ID domain_id	2xbbB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	2410 — Hect, E3 ligase catalytic fold
Homologous superfamily homologous superfamily	10 — Hect, E3 ligase catalytic domain

Domain ID domain_id	2xbbC00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily	90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

Domain ID domain_id	2xbbD00
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily	90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

▶

Unit-cell length a length_a	87.188 Å
Unit-cell length b length_b	49.276 Å
Unit-cell length c length_c	132.627 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	108.88 °
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	2.680 Å
Low-resolution limit resolution_low	43.590 Å
R factor r_factor	0.2070
R_work r_work	0.2050
R_free r_free	0.2490

Nedd4 HECT:Ub complex

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

E3 UBIQUITIN-PROTEIN LIGASE NEDD4

State in the Current Structure

Other States of the Same Protein in the Database

UBIQUITIN

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

2xbb__assembly_1__model_1

2xbb__assembly_1__model_1 | I(q)

2xbb__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 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)

Nedd4 HECT:Ub complex

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

E3 UBIQUITIN-PROTEIN LIGASE NEDD4

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

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

2xbb__assembly_1__model_1

2xbb__assembly_1__model_1 | I(q)

2xbb__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 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

7. Citations (1)