5dsz

Gamma-subunit of the translation initiation factor 2 from S. solfataricus

Method: X-RAY DIFFRACTION

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

Translation initiation factor 2 subunit gamma

Sulfolobus solfataricus

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	IF2G_SULSO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–415； UniProt 1–415 Author chain B； PDBConstruct 1–415； UniProt 1–415

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	5dsz
Deposition date deposition_date	2015-09-17
Structure title title	Gamma-subunit of the translation initiation factor 2 from S. solfataricus
Keywords keywords	translation, gamma-subunit, archaea, factor of initiation translation; TRANSLATION
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.

5dsz__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5dsz__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5dsz__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	23.82 Å
Rg (electron density)	22.58 Å
Total Rg	23.57 Å
Atom count	3155
Residues	407
Excluded volume	57113 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5dsz__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`5dsz__assembly_2__model_1`	monomeric （1）	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) 12 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d5dsza1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.8 — G proteins

Domain ID domain_id	d5dsza2
Class class	b — All beta proteins
Fold Fold fold	b.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamily	b.43.3 — Translation proteins
Family Family family	b.43.3.0 — automated matches

Domain ID domain_id	d5dsza3
Class class	b — All beta proteins
Fold Fold fold	b.44 — Elongation factor/aminomethyltransferase common domain
Superfamily Superfamily superfamily	b.44.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Family Family family	b.44.1.0 — automated matches

Domain ID domain_id	d5dszb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.8 — G proteins

Domain ID domain_id	d5dszb2
Class class	b — All beta proteins
Fold Fold fold	b.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamily	b.43.3 — Translation proteins
Family Family family	b.43.3.0 — automated matches

Domain ID domain_id	d5dszb3
Class class	b — All beta proteins
Fold Fold fold	b.44 — Elongation factor/aminomethyltransferase common domain
Superfamily Superfamily superfamily	b.44.1 — EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain
Family Family family	b.44.1.0 — automated matches

CATH v4.4 (6 domains)

Domain ID domain_id	5dszA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	5dszA02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	10 — Translation factors

Domain ID domain_id	5dszA03
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	10 — Translation factors

Domain ID domain_id	5dszB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	5dszB02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	10 — Translation factors

Domain ID domain_id	5dszB03
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	10 — Translation factors

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Unit-cell length a length_a	95.430 Å
Unit-cell length b length_b	95.430 Å
Unit-cell length c length_c	164.600 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 31
Space-group number int_tables_number	144
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	23.858 Å
R factor r_factor	0.2018
R_work r_work	0.2007
R_free r_free	0.2204

Description description	Translation initiation factor 2 subunit gamma
Molecular weight formula_weight	45849.2 kDa
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	6467

Gamma-subunit of the translation initiation factor 2 from S. solfataricus

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

Translation initiation factor 2 subunit gamma

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

5dsz__assembly_2__model_1

5dsz__assembly_2__model_1 | I(q)

5dsz__assembly_2__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) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)

Source organism organism	Sulfolobus solfataricus
NCBI taxonomy ID ncbi_taxonomy_id	2287
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	145

Gamma-subunit of the translation initiation factor 2 from S. solfataricus

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

Translation initiation factor 2 subunit gamma

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

5dsz__assembly_2__model_1

5dsz__assembly_2__model_1 | I(q)

5dsz__assembly_2__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) 12 domains

SCOP 2.08 (6 domains)

CATH v4.4 (6 domains)

7. Citations (1)