3eeq

Crystal structure of a putative cobalamin biosynthesis protein G homolog from Sulfolobus solfataricus

Method: X-RAY DIFFRACTION

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

putative Cobalamin biosynthesis protein G homolog

Sulfolobus solfataricus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	SULFATE ION × 6 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q97WD0_SULSO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–330； UniProt 12–336 Author chain B； PDBConstruct 1–330； UniProt 12–336

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	3eeq
Deposition date deposition_date	2008-09-05
Structure title title	Crystal structure of a putative cobalamin biosynthesis protein G homolog from Sulfolobus solfataricus
Keywords keywords	;STRUCTURAL GENOMICS, UNKNOWN FUNCTION, PSI-2, Protein Structure Initiative, New York SGX Research Center for Structural Genomics, NYSGXRC ;; structural genomics, 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.

3eeq__assembly_1__model_1

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

Download this curve (.dat)

3eeq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3eeq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	32.30 Å
Rg (electron density)	32.03 Å
Total Rg	32.36 Å
Atom count	4670
Residues	615
Excluded volume	84146 Å³
Maximum q	0.500 Å⁻¹

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

Entity 1 Entity 1 polymer

Description description	putative Cobalamin biosynthesis protein G homolog
Molecular weight formula_weight	37782.0 kDa
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	4721

MSLIENLWRGICIISASEDAFSAGETIKEKLKSFEIPVVHYRYKDAEIETIWKCYDAIVFVMALEGATRIVCKYAKSKTEDPAIVCIDDKINYVIPLLGGHWGANDIARELSVILNSTPIITTAAEIKGKLSIERIANILIAKIINPENIVKINAALLRDESICIDGIDVNVNFPENIKVNSEECSYIISLRGDKEYKDKIVVWLKPLKISIGIGSKKDVKMEEIRDGIYKVLERLNLKRERIGIIASIREEVKKIADEFNVRFRLVNEEEINNFMNPCLTPPSKTLIEVGLKGVAEISALIAGGRNSKLILRKIAISRNSTIAVATYEGHHHHHH

Source Source

Source organism organism	Sulfolobus solfataricus
NCBI taxonomy ID ncbi_taxonomy_id	2287
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	34

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6. Fold Classification (SCOP + CATH) 13 domains

SCOP 2.08 (7 domains)

Domain ID domain_id	d3eeqa1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.151 — CobE/GbiG C-terminal domain-like
Superfamily Superfamily superfamily	c.151.1 — CobE/GbiG C-terminal domain-like
Family Family family	c.151.1.1 — CobE/GbiG C-terminal domain-like

Domain ID domain_id	d3eeqa2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.152 — CbiG N-terminal domain-like
Superfamily Superfamily superfamily	c.152.1 — CbiG N-terminal domain-like
Family Family family	c.152.1.1 — CbiG N-terminal domain-like

Domain ID domain_id	d3eeqa3
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	d3eeqb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.151 — CobE/GbiG C-terminal domain-like
Superfamily Superfamily superfamily	c.151.1 — CobE/GbiG C-terminal domain-like
Family Family family	c.151.1.1 — CobE/GbiG C-terminal domain-like

Domain ID domain_id	d3eeqb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.152 — CbiG N-terminal domain-like
Superfamily Superfamily superfamily	c.152.1 — CbiG N-terminal domain-like
Family Family family	c.152.1.1 — CbiG N-terminal domain-like

Domain ID domain_id	d3eeqb3
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	d3eeqb4
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

CATH v4.4 (6 domains)

Domain ID domain_id	3eeqA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11220 —

Domain ID domain_id	3eeqA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1390 — Udp-n-acetylmuramoylalanyl-d-glutamate--2,6- Diaminopimelate Ligase; Chain: A, domain 1
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3eeqA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	180 — CobE/GbiG C-terminal domain

Domain ID domain_id	3eeqB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	11220 —

Domain ID domain_id	3eeqB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1390 — Udp-n-acetylmuramoylalanyl-d-glutamate--2,6- Diaminopimelate Ligase; Chain: A, domain 1
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	3eeqB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	180 — CobE/GbiG C-terminal domain

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Unit-cell length a length_a	66.015 Å
Unit-cell length b length_b	97.500 Å
Unit-cell length c length_c	107.322 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 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2390
R_work r_work	0.2370
R_free r_free	0.2840

Crystal structure of a putative cobalamin biosynthesis protein G homolog from Sulfolobus solfataricus

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

putative Cobalamin biosynthesis protein G homolog

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

3eeq__assembly_1__model_1

3eeq__assembly_1__model_1 | I(q)

3eeq__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 13 domains

SCOP 2.08 (7 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Crystal structure of a putative cobalamin biosynthesis protein G homolog from Sulfolobus solfataricus

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

putative Cobalamin biosynthesis protein G homolog

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

3eeq__assembly_1__model_1

3eeq__assembly_1__model_1 | I(q)

3eeq__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 13 domains

SCOP 2.08 (7 domains)

CATH v4.4 (6 domains)

7. Citations (1)