SAXSdb — 9jvb

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

Transcription elongation factor S-II, putative

Trypanosoma brucei brucei (strain 927/4 GUTat10.1)

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 12	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q586X9_TRYB2
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 10–117； UniProt 161–268 Author chain B； PDBConstruct 10–117； UniProt 161–268 Author chain C； PDBConstruct 10–117； UniProt 161–268 Author chain D； PDBConstruct 10–117； UniProt 161–268 Author chain E； PDBConstruct 10–117； UniProt 161–268 Author chain F； PDBConstruct 10–117； UniProt 161–268 Author chain G； PDBConstruct 10–117； UniProt 161–268 Author chain H； PDBConstruct 10–117； UniProt 161–268 Author chain I； PDBConstruct 10–117； UniProt 161–268 Author chain J； PDBConstruct 10–117； UniProt 161–268 Author chain K； PDBConstruct 10–117； UniProt 161–268 Author chain L； PDBConstruct 10–117； UniProt 161–268

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	9jvb
Deposition date deposition_date	2024-10-08
Last revision last_revision	2026-04-15
Structure title title	Trypanosoma brucei strain TREU927 TFIIS2-1 LW domain
Keywords keywords	transcription elongation factor, TRANSCRIPTION; TRANSCRIPTION
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.

9jvb__assembly_1__model_1

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

Download this curve (.dat)

9jvb__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9jvb__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	35.06 Å
Rg (electron density)	33.79 Å
Total Rg	34.60 Å
Atom count	9462
Residues	1227
Excluded volume	167780 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9jvb__assembly_1__model_1`	12-meric （12）	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 (1)

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Unit-cell length a length_a	60.510 Å
Unit-cell length b length_b	80.937 Å
Unit-cell length c length_c	86.793 Å
Unit-cell angle α angle_alpha	116.78 °
Unit-cell angle β angle_beta	96.47 °
Unit-cell angle γ angle_gamma	105.93 °
Molecules per unit cell Z z_pdb	12

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	3.500 Å
Low-resolution limit resolution_low	32.820 Å
R factor r_factor	0.2775
R_work r_work	0.2758
R_free r_free	0.3120

Description description	Transcription elongation factor S-II, putative
Molecular weight formula_weight	13110.9 kDa
Source method src_method	man
Copy count entity_count	12

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,I,K,L,J,H
Atom count atom_count	9462

Trypanosoma brucei strain TREU927 TFIIS2-1 LW domain

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

Transcription elongation factor S-II, putative

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

9jvb__assembly_1__model_1

9jvb__assembly_1__model_1 | I(q)

9jvb__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)

Source organism organism	Trypanosoma brucei brucei (strain 927/4 GUTat10.1)
NCBI taxonomy ID ncbi_taxonomy_id	185431
Host organism host_organism	Escherichia coli

Trypanosoma brucei strain TREU927 TFIIS2-1 LW domain

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

Transcription elongation factor S-II, putative

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

9jvb__assembly_1__model_1

9jvb__assembly_1__model_1 | I(q)

9jvb__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

7. Citations (1)