SAXSdb — 2g9i

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

F420-0:gamma-glutamyl ligase

Archaeoglobus fulgidus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	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	COFE_ARCFU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–249； UniProt 1–249 Author chain B； PDBConstruct 1–249； UniProt 1–249

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	2g9i
Deposition date deposition_date	2006-03-06
Structure title title	Crystal structure of homolog of F420-0:gamma-Glutamyl Ligase from Archaeoglobus fulgidus Reveals a Novel Fold.
Keywords keywords	;CofE homolog, homolog of F420-0:gamma-Glutamyl Ligase, gamma-Glutamyl Ligase, Structural Genomics, PSI, Protein Structure Initiative, Midwest Center for Structural Genomics, MCSG, LIGASE ;; LIGASE
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.

2g9i__assembly_1__model_1

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

Download this curve (.dat)

2g9i__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2g9i__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.00 Å
Rg (electron density)	22.92 Å
Total Rg	23.62 Å
Atom count	3548
Residues	458
Excluded volume	63697 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2g9i__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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2g9ia1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.340 — CofE-like
Superfamily Superfamily superfamily	d.340.1 — CofE-like
Family Family family	d.340.1.1 — CofE-like

Domain ID domain_id	d2g9ib_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.340 — CofE-like
Superfamily Superfamily superfamily	d.340.1 — CofE-like
Family Family family	d.340.1.1 — CofE-like

CATH v4.4 (4 domains)

Domain ID domain_id	2g9iA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	100 — CofE-like

Domain ID domain_id	2g9iA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1660 — CofE-like fold
Homologous superfamily homologous superfamily	10 — CofE-like domain

Domain ID domain_id	2g9iB01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	100 — CofE-like

Domain ID domain_id	2g9iB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1660 — CofE-like fold
Homologous superfamily homologous superfamily	10 — CofE-like domain

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Unit-cell length a length_a	100.386 Å
Unit-cell length b length_b	100.386 Å
Unit-cell length c length_c	92.960 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	16

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	40.000 Å
R factor r_factor	0.1935
R_work r_work	0.1902
R_free r_free	0.2548

Description description	F420-0:gamma-glutamyl ligase
Molecular weight formula_weight	27483.0 kDa
EC 编号 ec_number	6.3.2.-
Source method src_method	man
Copy count entity_count	2

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	3704

Crystal structure of homolog of F420-0:gamma-Glutamyl Ligase from Archaeoglobus fulgidus Reveals a Novel Fold.

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

F420-0:gamma-glutamyl ligase

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

2g9i__assembly_1__model_1

2g9i__assembly_1__model_1 | I(q)

2g9i__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Source organism organism	Archaeoglobus fulgidus
NCBI taxonomy ID ncbi_taxonomy_id	224325
Host organism host_organism	Escherichia coli BL21(DE3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	98

Crystal structure of homolog of F420-0:gamma-Glutamyl Ligase from Archaeoglobus fulgidus Reveals a Novel Fold.

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

F420-0:gamma-glutamyl ligase

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

2g9i__assembly_1__model_1

2g9i__assembly_1__model_1 | I(q)

2g9i__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)