SAXSdb — 9o9u

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

Erlin-1

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 26	Erlin-2 × 13 （O94905） 2-acetamido-2-deoxy-beta-D-glucopyranose × 26	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ERLN1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 36–381； UniProt 3–348 Author chain B； PDBConstruct 36–381； UniProt 3–348 Author chain C； PDBConstruct 36–381； UniProt 3–348 Author chain D； PDBConstruct 36–381； UniProt 3–348 Author chain E； PDBConstruct 36–381； UniProt 3–348 Author chain F； PDBConstruct 36–381； UniProt 3–348 Author chain G； PDBConstruct 36–381； UniProt 3–348 Author chain H； PDBConstruct 36–381； UniProt 3–348 Author chain I； PDBConstruct 36–381； UniProt 3–348 Author chain J； PDBConstruct 36–381； UniProt 3–348 Author chain K； PDBConstruct 36–381； UniProt 3–348 Author chain L； PDBConstruct 36–381； UniProt 3–348 Author chain M； PDBConstruct 36–381； UniProt 3–348

Erlin-2

Homo sapiens

UniProt O94905

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 26	Erlin-1 × 13 （O75477） 2-acetamido-2-deoxy-beta-D-glucopyranose × 26	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ERLN2_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain a； PDBConstruct 1–339； UniProt 1–339 Author chain b； PDBConstruct 1–339； UniProt 1–339 Author chain c； PDBConstruct 1–339； UniProt 1–339 Author chain d； PDBConstruct 1–339； UniProt 1–339 Author chain e； PDBConstruct 1–339； UniProt 1–339 Author chain f； PDBConstruct 1–339； UniProt 1–339 Author chain g； PDBConstruct 1–339； UniProt 1–339 Author chain h； PDBConstruct 1–339； UniProt 1–339 Author chain i； PDBConstruct 1–339； UniProt 1–339 Author chain j； PDBConstruct 1–339； UniProt 1–339 Author chain k； PDBConstruct 1–339； UniProt 1–339 Author chain l； PDBConstruct 1–339； UniProt 1–339 Author chain m； PDBConstruct 1–339； UniProt 1–339

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	9o9u
Deposition date deposition_date	2025-04-18
Structure title title	The Erlin1/2 complex
Keywords keywords	SPFH, ER, Erlin1, Erlin2, MEMBRANE PROTEIN; MEMBRANE PROTEIN
Experimental Method method	ELECTRON MICROSCOPY

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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.

9o9u__assembly_1__model_1

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

Download this curve (.dat)

9o9u__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9o9u__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	93.19 Å
Rg (electron density)	92.68 Å
Total Rg	92.47 Å
Atom count	60697
Residues	7553
Excluded volume	1093900 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9o9u__assembly_1__model_1`	26-meric （26）	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 (3)

Entity 1 Entity 1 polymer

Description description	Erlin-1
Molecular weight formula_weight	42429.4 kDa
Source method src_method	man
Copy count entity_count	13

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M
Atom count atom_count	60697

MSAWSHPQFEKGGGSGGGSGGSAWSHPQFEKGSGSMTQARVLVAAVVGLVAVLLYASIHKIEEGHLAVYYRGGALLTSPSGPGYHIMLPFITTFRSVQTTLQTDEVKNVPCGTSGGVMIYIDRIEVVNMLAPYAVFDIVRNYTADYDKTLIFNKIHHELNQFCSAHTLQEVYIELFDQIDENLKQALQKDLNLMAPGLTIQAVRVTKPKIPEAIRRNFELMEAEKTKLLIAAQKQKVVEKEAETERKKAVIEAEKIAQVAKIRFQQKVMEKETEKRISEIEDAAFLAREKAKADAEYYAAHKYATSNKHKLTPEYLELKKYQAIASNSKIYFGSNIPNMFVDSSCALKYSDIRTGRESSLPSKEALEPSGENVIQNKESTG

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	Erlin-2
Molecular weight formula_weight	37884.5 kDa
Source method src_method	man
Copy count entity_count	13

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	a,b,c,d,e,f,g,h,i,j,k,l,m

MAQLGAVVAVASSFFCASLFSAVHKIEEGHIGVYYRGGALLTSTSGPGFHLMLPFITSYKSVQTTLQTDEVKNVPCGTSGGVMIYFDRIEVVNFLVPNAVYDIVKNYTADYDKALIFNKIHHELNQFCSVHTLQEVYIELFDQIDENLKLALQQDLTSMAPGLVIQAVRVTKPNIPEAIRRNYELMESEKTKLLIAAQKQKVVEKEAETERKKALIEAEKVAQVAEITYGQKVMEKETEKKISEIEDAAFLAREKAKADAECYTAMKIAEANKLKLTPEYLQLMKYKAIASNSKIYFGKDIPNMFMDSAGSVSKQFEGLADKLSFGLEDEPLETATKEN

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 3 Entity 3 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	26

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	—

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

Resolution resolution	3.00 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	95469

The Erlin1/2 complex

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

Erlin-1

State in the Current Structure

Other States of the Same Protein in the Database

Erlin-2

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

9o9u__assembly_1__model_1

9o9u__assembly_1__model_1 | I(q)

9o9u__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

7. Citations (1)

The Erlin1/2 complex

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

Erlin-1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Erlin-2

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

9o9u__assembly_1__model_1

9o9u__assembly_1__model_1 | I(q)

9o9u__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

7. Citations (1)