SAXSdb — 4r71

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

Elongation factor Ts, Elongation factor Tu

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 3	RNA-directed RNA polymerase beta chain × 1 （P14647） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count
2	Insufficient information	Heteromer	Protein 3	RNA-directed RNA polymerase beta chain × 1 （P14647） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	EFTS_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–283； UniProt 1–283 Author chain C； PDBConstruct 1–283； UniProt 1–283

Elongation factor Ts, Elongation factor Tu

Escherichia coli

UniProt P0CE48

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 3	RNA-directed RNA polymerase beta chain × 1 （P14647） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count
2	Insufficient information	Heteromer	Protein 3	RNA-directed RNA polymerase beta chain × 1 （P14647） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	EFTU2_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 285–678； UniProt 1–394 Author chain C； PDBConstruct 285–678； UniProt 1–394

RNA-directed RNA polymerase beta chain

Enterobacteria phage Qbeta

UniProt P14647

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 3	Elongation factor Ts, Elongation factor Tu × 1 （P0A6P1,P0CE48） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count
2	Insufficient information	Heteromer	Protein 3	Elongation factor Ts, Elongation factor Tu × 1 （P0A6P1,P0CE48） 30S ribosomal protein S1 × 1 （P0AG67）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RDRP_BPQBE
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 7–595； UniProt 1–589 Author chain D； PDBConstruct 7–595； UniProt 1–589

30S ribosomal protein S1

Escherichia coli

UniProt P0AG67

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 3	Elongation factor Ts, Elongation factor Tu × 1 （P0A6P1,P0CE48） RNA-directed RNA polymerase beta chain × 1 （P14647）	Consistent with protein count
2	Insufficient information	Heteromer	Protein 3	Elongation factor Ts, Elongation factor Tu × 1 （P0A6P1,P0CE48） RNA-directed RNA polymerase beta chain × 1 （P14647）	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RS1_ECOLI
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain E； PDBConstruct 2–171； UniProt 2–171 Author chain F； PDBConstruct 2–171； UniProt 2–171

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	4r71
Deposition date deposition_date	2014-08-26
Structure title title	Structure of the Qbeta holoenzyme complex in the P1211 crystal form
Keywords keywords	OB FOLD, TRANSLATION, VIRAL PROTEIN-RIBOSOMAL PROTEIN complex; VIRAL PROTEIN/RIBOSOMAL PROTEIN
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.

4r71__assembly_2__model_1

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

Download this curve (.dat)

4r71__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4r71__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	39.05 Å
Rg (electron density)	38.58 Å
Total Rg	39.06 Å
Atom count	10550
Residues	1362
Excluded volume	188190 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4r71__assembly_1__model_1`	trimeric （3）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`4r71__assembly_2__model_1`	trimeric （3）	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	Elongation factor Ts, Elongation factor Tu
Molecular weight formula_weight	75392.1 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C
Atom count atom_count	21108

MAEITASLVKELRERTGAGMMDCKKALTEANGDIELAIENMRKSGAIKAAKKAGNVAADGVIKTKIDGNYGIILEVNCQTDFVAKDAGFQAFADKVLDAAVAGKITDVEVLKAQFEEERVALVAKIGENINIRRVAALEGDVLGSYQHGARIGVLVAAKGADEELVKHIAMHVAASKPEFIKPEDVSAEVVEKEYQVQLDIAMQSGKPKEIAEKMVEGRMKKFTGEVSLTGQPFVMEPSKTVGQLLKEHNAEVTGFIRFEVGEGIEKVETDFAAEVAAMSKQSHMSKEKFERTKPHVNVGTIGHVDHGKTTLTAAITTVLAKTYGGAARAFDQIDNAPEEKARGITINTSHVEYDTPTRHYAHVDCPGHADYVKNMITGAAQMDGAILVVAATDGPMPQTREHILLGRQVGVPYIIVFLNKCDMVDDEELLELVEMEVRELLSQYDFPGDDTPIVRGSALKALEGDAEWEAKILELAGFLDSYIPEPERAIDKPFLLPIEDVFSISGRGTVVTGRVERGIIKVGEEVEIVGIKETQKSTCTGVEMFRKLLDEGRAGENVGVLLRGIKREEIERGQVLAKPGTIKPHTKFESEVYILSKDEGGRHTPFFKGYRPQFYFRTTDVTGTIELPEGVEMVMPGDNIKMVVTLIHPIAMDDGLRFAIREGGRTVGAGVVAKVLSGASGAAGGGGENLYFQ

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	RNA-directed RNA polymerase beta chain
Molecular weight formula_weight	65997.6 kDa
EC 编号 ec_number	2.7.7.48
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D

SGGGGSMSKTASSRNSLSAQLRRAANTRIEVEGNLALSIANDLLLAYGQSPFNSEAECISFSPRFDGTPDDFRINYLKAEIMSKYDDFSLGIDTEAVAWEKFLAAEAECALTNARLYRPDYSEDFNFSLGESCIHMARRKIAKLIGDVPSVEGMLRHCRFSGGATTTNNRSYGHPSFKFALPQACTPRALKYVLALRASTHFDTRISDISPFNKAVTVPKNSKTDRCIAIEPGWNMFFQLGIGGILRDRLRCWGIDLNDQTINQRRAHEGSVTNNLATVDLSAASDSISLALCELLLPPGWFEVLMDLRSPKGRLPDGSVVTYEKISSMGNGYTFELESLIFASLARSVCEILDLDSSEVTVYGDDIILPSCAVPALREVFKYVGFTTNTKKTFSEGPFRESCGKHYYSGVDVTPFYIRHRIVSPADLILVLNNLYRWATIDGVWDPRAHSVYLKYRKLLPKQLQRNTIPDGYGDGALVGSVLINPFAKNRGWIRYVPVITDHTRDRERAELGSYLYDLFSRCLSESNDGLPLRGPSGCDSADLFAIDQLICRSNPTKISRSTGKFDIQYIACSSRVLAPYGVFQGTKVASLHEA

Source Source

Source organism organism	Enterobacteria phage Qbeta
NCBI taxonomy ID ncbi_taxonomy_id	39803
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	30S ribosomal protein S1
Molecular weight formula_weight	18797.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E,F

GTESFAQLFEESLKEIETRPGSIVRGVVVAIDKDVVLVDAGLKSESAIPAEQFKNAQGELEIQVGDEVDVALDAVEDGFGETLLSREKAKRHEAWITLEKAYEDAETVTGVINGKVKGGFTVELNGIRAFLPGSLVDVRPVRDTLHLEGKELEFKVIKLDQKRNNVVVSRR

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

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6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id	4r71A01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	10 — Ubiquitin-associated (UBA) domain

Domain ID domain_id	4r71A03
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	4r71A04
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	4r71A05
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	4r71C01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily	10 — Ubiquitin-associated (UBA) domain

Domain ID domain_id	4r71C03
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	4r71C04
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	4r71C05
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	99.730 Å
Unit-cell length b length_b	115.450 Å
Unit-cell length c length_c	178.520 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	96.14 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	3.210 Å
Low-resolution limit resolution_low	59.827 Å
R factor r_factor	0.2158
R_work r_work	0.2131
R_free r_free	0.2676

Structure of the Qbeta holoenzyme complex in the P1211 crystal form

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

Elongation factor Ts, Elongation factor Tu

State in the Current Structure

Other States of the Same Protein in the Database

Elongation factor Ts, Elongation factor Tu

State in the Current Structure

Other States of the Same Protein in the Database

RNA-directed RNA polymerase beta chain

State in the Current Structure

Other States of the Same Protein in the Database

30S ribosomal protein S1

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

4r71__assembly_2__model_1

4r71__assembly_2__model_1 | I(q)

4r71__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)

Structure of the Qbeta holoenzyme complex in the P1211 crystal form

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

Elongation factor Ts, Elongation factor Tu

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Elongation factor Ts, Elongation factor Tu

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

RNA-directed RNA polymerase beta chain

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

30S ribosomal protein S1

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

4r71__assembly_2__model_1

4r71__assembly_2__model_1 | I(q)

4r71__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

6. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

7. Citations (1)