SAXSdb — 1l8w

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

VlsE1

Borreliella burgdorferi

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
3	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
4	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count
5	Protein homooligomer	Homooligomer	Protein 2	water × 2	Consistent with protein count
6	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	O06878_BORBG
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 13–348； UniProt 21–356 Author chain B； PDBConstruct 13–348； UniProt 21–356 Author chain C； PDBConstruct 13–348； UniProt 21–356 Author chain D； PDBConstruct 13–348； UniProt 21–356

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	1l8w
Deposition date deposition_date	2002-03-21
Structure title title	Crystal Structure of Lyme Disease Variable Surface Antigen VlsE of Borrelia burgdorferi
Keywords keywords	Variable Surface Protein, VMP-like sequence, IMMUNE SYSTEM; IMMUNE SYSTEM
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.

1l8w__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1l8w__assembly_3__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1l8w__assembly_3__model_1 | P(r) · Pending

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

Rg（Guinier）	20.53 Å
Rg (electron density)	19.79 Å
Total Rg	20.55 Å
Atom count	1902
Residues	272
Excluded volume	33946 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1l8w__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1l8w__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1l8w__assembly_3__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1l8w__assembly_4__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
5	1	`1l8w__assembly_5__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
6	1	`1l8w__assembly_6__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) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1l8wa_
Class class	a — All alpha proteins
Fold Fold fold	a.154 — Variable surface antigen VlsE
Superfamily Superfamily superfamily	a.154.1 — Variable surface antigen VlsE
Family Family family	a.154.1.1 — Variable surface antigen VlsE

Domain ID domain_id	d1l8wb_
Class class	a — All alpha proteins
Fold Fold fold	a.154 — Variable surface antigen VlsE
Superfamily Superfamily superfamily	a.154.1 — Variable surface antigen VlsE
Family Family family	a.154.1.1 — Variable surface antigen VlsE

Domain ID domain_id	d1l8wc_
Class class	a — All alpha proteins
Fold Fold fold	a.154 — Variable surface antigen VlsE
Superfamily Superfamily superfamily	a.154.1 — Variable surface antigen VlsE
Family Family family	a.154.1.1 — Variable surface antigen VlsE

Domain ID domain_id	d1l8wd_
Class class	a — All alpha proteins
Fold Fold fold	a.154 — Variable surface antigen VlsE
Superfamily Superfamily superfamily	a.154.1 — Variable surface antigen VlsE
Family Family family	a.154.1.1 — Variable surface antigen VlsE

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Unit-cell length a length_a	85.171 Å
Unit-cell length b length_b	59.178 Å
Unit-cell length c length_c	116.149 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	104.58 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 1 2 1
Space-group number int_tables_number	3
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	82.430 Å
R factor r_factor	—
R_work r_work	0.2160
R_free r_free	0.2910

Description description	VlsE1
Molecular weight formula_weight	35274.3 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	8994

Crystal Structure of Lyme Disease Variable Surface Antigen VlsE of Borrelia burgdorferi

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

VlsE1

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

1l8w__assembly_3__model_1

1l8w__assembly_3__model_1 | I(q)

1l8w__assembly_3__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) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)

Source organism organism	Borreliella burgdorferi
Common name common_name	Lyme disease spirochete
NCBI taxonomy ID ncbi_taxonomy_id	139
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	1010

Crystal Structure of Lyme Disease Variable Surface Antigen VlsE of Borrelia burgdorferi

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

VlsE1

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

1l8w__assembly_3__model_1

1l8w__assembly_3__model_1 | I(q)

1l8w__assembly_3__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) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)