3g6i

Crystal structure of an outer membrane protein, part of a putative carbohydrate binding complex (bt_1022) from bacteroides thetaiotaomicron vpi-5482 at 1.93 A resolution

Method: X-RAY DIFFRACTION

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

Putative outer membrane protein, part of carbohydrate binding complex

Bacteroides thetaiotaomicron VPI-5482

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	DI(HYDROXYETHYL)ETHER × 4 SULFATE ION × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8A8Z5_BACTN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–204； UniProt 20–222

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	3g6i
Deposition date deposition_date	2009-02-06
Structure title title	Crystal structure of an outer membrane protein, part of a putative carbohydrate binding complex (bt_1022) from bacteroides thetaiotaomicron vpi-5482 at 1.93 A resolution
Keywords keywords	Structural genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI-2, unknown function; 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.

3g6i__assembly_1__model_1

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

Download this curve (.dat)

3g6i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3g6i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.90 Å
Rg (electron density)	23.93 Å
Total Rg	24.78 Å
Atom count	3208
Residues	394
Excluded volume	57099 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3g6i__assembly_1__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 (4)

Entity 1 Entity 1 polymer

Description description	Putative outer membrane protein, part of carbohydrate binding complex
Molecular weight formula_weight	23237.8 kDa
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	1917

GAVDLNKENRDPKYVESIVNRSQKIVDKLGLTDAKVAEDVCNVIANRYFELNDIYEIRDAKVKAVKESGLTGDAKNEALKAAENEKDAALYRSHFAFPASLSLFLNEEQIEAVKDGMTYGVVKVTYEATLDMIPSLKEEEKVQIYAWLVEAREFAMDAENSNKKHAAFGKYKGRINNYLAKRGYNLTKEREEWAKRVKARGGTL

Source Source

Source organism organism	Bacteroides thetaiotaomicron VPI-5482
NCBI taxonomy ID ncbi_taxonomy_id	226186
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	DI(HYDROXYETHYL)ETHER
Molecular weight formula_weight	106.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	238

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Unit-cell length a length_a	75.025 Å
Unit-cell length b length_b	75.025 Å
Unit-cell length c length_c	127.290 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 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	1.930 Å
Low-resolution limit resolution_low	48.970 Å
R factor r_factor	0.1980
R_work r_work	0.1970
R_free r_free	0.2230

Crystal structure of an outer membrane protein, part of a putative carbohydrate binding complex (bt_1022) from bacteroides thetaiotaomicron vpi-5482 at 1.93 A resolution

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

Putative outer membrane protein, part of carbohydrate binding complex

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

3g6i__assembly_1__model_1

3g6i__assembly_1__model_1 | I(q)

3g6i__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)

Crystal structure of an outer membrane protein, part of a putative carbohydrate binding complex (bt_1022) from bacteroides thetaiotaomicron vpi-5482 at 1.93 A resolution

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

Putative outer membrane protein, part of carbohydrate binding complex

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

3g6i__assembly_1__model_1

3g6i__assembly_1__model_1 | I(q)

3g6i__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

7. Citations (1)