SAXSdb — 1dt9

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

PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)

OrganismNot specified

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ERF1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–437； UniProt 1–437

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	1dt9
Deposition date deposition_date	2000-01-12
Structure title title	THE CRYSTAL STRUCTURE OF HUMAN EUKARYOTIC RELEASE FACTOR ERF1-MECHANISM OF STOP CODON RECOGNITION AND PEPTIDYL-TRNA HYDROLYSIS
Keywords keywords	erf1, trna mimicry, protein sythesis, stop codon recognition, peptidyl-trna hydrolysis, 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.

1dt9__assembly_1__model_1

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

Download this curve (.dat)

1dt9__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1dt9__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.70 Å
Rg (electron density)	28.86 Å
Total Rg	29.44 Å
Atom count	3131
Residues	398
Excluded volume	56286 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1dt9__assembly_1__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) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1dt9a1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.4 — Translational machinery components
Family Family family	c.55.4.2 — ERF1/Dom34 middle domain-like

Domain ID domain_id	d1dt9a2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.79 — Bacillus chorismate mutase-like
Superfamily Superfamily superfamily	d.79.3 — L30e-like
Family Family family	d.79.3.2 — ERF1/Dom34 C-terminal domain-like

Domain ID domain_id	d1dt9a3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.91 — N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1
Superfamily Superfamily superfamily	d.91.1 — N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1
Family Family family	d.91.1.1 — N-terminal domain of eukaryotic peptide chain release factor subunit 1, ERF1

CATH v4.4 (3 domains)

Domain ID domain_id	1dt9A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	960 — Translation, Eukaryotic Peptide Chain Release Factor Subunit 1; Chain A
Homologous superfamily homologous superfamily	10 — eRF1 domain 1

Domain ID domain_id	1dt9A02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	60 — eRF1 domain 2

Domain ID domain_id	1dt9A03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1330 — 60s Ribosomal Protein L30; Chain: A;
Homologous superfamily homologous superfamily	30 — Ribosomal protein L30/S12

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Unit-cell length a length_a	77.080 Å
Unit-cell length b length_b	77.080 Å
Unit-cell length c length_c	194.440 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	2.700 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	—
R_work r_work	0.2460
R_free r_free	0.3140

Description description	PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)
Molecular weight formula_weight	49092.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3241

THE CRYSTAL STRUCTURE OF HUMAN EUKARYOTIC RELEASE FACTOR ERF1-MECHANISM OF STOP CODON RECOGNITION AND PEPTIDYL-TRNA HYDROLYSIS

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

PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)

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

1dt9__assembly_1__model_1

1dt9__assembly_1__model_1 | I(q)

1dt9__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (3)

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	110

THE CRYSTAL STRUCTURE OF HUMAN EUKARYOTIC RELEASE FACTOR ERF1-MECHANISM OF STOP CODON RECOGNITION AND PEPTIDYL-TRNA HYDROLYSIS

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

PROTEIN (EUKARYOTIC PEPTIDE CHAIN RELEASE FACTOR SUBUNIT 1)

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

1dt9__assembly_1__model_1

1dt9__assembly_1__model_1 | I(q)

1dt9__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (3)