SAXSdb — 2aar

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

50S ribosomal protein L23

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 1	23S ribosomal RNA × 1 50S ribosomal protein L29 × 1 （Q9RXJ4） Trigger Factor × 1 （Q9RT21）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RL23_DEIRA
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain R； PDBConstruct 1–95； UniProt 1–95

50S ribosomal protein L29

OrganismNot specified

UniProt Q9RXJ4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 1	23S ribosomal RNA × 1 50S ribosomal protein L23 × 1 （Q9RXK0） Trigger Factor × 1 （Q9RT21）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RL29_DEIRA
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain W； PDBConstruct 1–67； UniProt 1–67

Trigger Factor

OrganismNot specified

UniProt Q9RT21

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 1	23S ribosomal RNA × 1 50S ribosomal protein L23 × 1 （Q9RXK0） 50S ribosomal protein L29 × 1 （Q9RXJ4）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TIG_DEIRA
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain 7； PDBConstruct 1–113； UniProt 1–113

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	2aar
Deposition date deposition_date	2005-07-14
Structure title title	Structure of trigger factor binding domain in biologically homologous complex with eubacterial ribosome.
Keywords keywords	Trigger Factor, 50S, ribosome, Cheperone, Tunnel; RIBOSOME
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.

2aar__assembly_1__model_1

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

Download this curve (.dat)

2aar__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2aar__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	65.47 Å
Rg (electron density)	65.32 Å
Total Rg	66.21 Å
Atom count	59359
Residues	2766
Excluded volume	874190 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2aar__assembly_1__model_1`	tetrameric （4）	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 (4)

Entity 1 Entity 1 polymer

Description description	23S ribosomal RNA
Molecular weight formula_weight	933405.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	0
Atom count atom_count	59630

GGUCAAGAUAGUAAGGGUCCACGGUGGAUGCCCUGGCGCUGGAGCCGAUGAAGGACGCGAUUACCUGCGAAAAGCCCCGACGAGCUGGAGAUACGCUUUGACUCGGGGAUGUCCGAAUGGGGAAACCCACCUCGUAAGAGGUAUCCGCAAGGAUGGGAACUCAGGGAACUGAAACAUCUCAGUACCUGAAGGAGAAGAAAGAGAAUUCGAUUCCGUUAGUAGCGGCGAGCGAACCCGGAUCAGCCCAAACCGAAACGCUUGCGUUUCGGGGUUGUAGGACCAGUUUUUAAGAUUCAACCCCUCAAGCCGAAGUGGCUGGAAAGCUACACCUCAGAAGGUGAGAGUCCUGUAGGCGAACGAGCGGUUGACUGUACUGGCACCUGAGUAGGUCGUUGUUCGUGAAACGAUGACUGAAUCCGCGCGGACCACCGCGCAAGGCUAAAUACUCCCAGUGACCGAUAGCGCAUAGUACCGUGAGGGAAAGGUGAAAAGAACCCCGGGAGGGGAGUGAAAGAGAACCUGAAACCGUGGACUUACAAGCAGUCAUGGCACCUUAUGCGUGUUAUGGCGUGCCUAUUGAAGCAUGAGCCGGCGACUUAGACCUGACGUGCGAGCUUAAGUUGAAAAACGGAGGCGGAGCGAAAGCGAGUCCGAAUAGGGCGGCAUUAGUACGUCGGGCUAGACUCGAAACCAGGUGAGCUAAGCAUGACCAGGUUGAAACCCCCGUGACAGGGGGCGGAGGACCGAACCGGUGCCUGCUGAAACAGUCUCGGAUGAGUUGUGUUUAGGAGUGAAAAGCUAACCGAACCUGGAGAUAGCUAGUUCUCCCCGAAAUGUAUUGAGGUACAGCCUCGGAUGUUGACCAUGUCCUGUAGAGCACUCACAAGGCUAGGGGGCCUACCAGCUUACCAAACCUUAUGAAACUCCGAAGGGGCACGCGUUUAGUCCGGGAGUGAGGCUGCGAGAGCUAACUUCCGUAGCCGAGAGGGAAACAACCCAGACCAUCAGCUAAGGUCCCUAAAUGAUCGCUCAGUGGUUAAGGAUGUGUCGUCGCAUAGACAGCCAGGAGGUUGGCUUAGAAGCAGCCACCCUUCAAAGAGUGCGUAAUAGCUCACUGGUCGAGUGACGAUGCGCCGAAAAUGAUCGGGGCUCAAGUGAUCUACCGAAGCUAUGGAUUCAACUCGCGAAGCGAGUUGUCUGGUAGGGGAGCGUUCAGUCCGCGGAGAAGCCAUACCGGAAGGAGUGGUGGAGCCGACUGAAGUGCGGAUGCCGGCAUGAGUAACGAUAAAAGAAGUGAGAAUCUUCUUCGCCGUAAGGACAAGGGUUCCUGGGGAAGGGUCGUCCGCCCAGGGAAAGUCGGGACCUAAGGUGAGGCCGAACGGCGCAGCCGAUGGACAGCAGGUCAAGAUUCCUGCACCGAUCAUGUGGAGUGAUGGAGGGACGCAUUACGCUAUCCAAUGCCAAGCUAUGGCUAUGCUGGUUGGUACGCUCAAGGGCGAUCGGGUCAGAAAAUCUACCGGUCACAUGCCUCAGACGUAUCGGGAGCUUCCUCGGAAGCGAAGUUGGAAACGCGACGGUGCCAAGAAAAGCUUCUAAACGUUGAAACAUGAUUGCCCGUACCGCAAACCGACACAGGUGUCCGAGUGUCAAUGCACUAAGGCGCGCGAGAGAACCCUCGUUAAGGAACUUUGCAAUCUCACCCCGUAACUUCGGAAGAAGGGGUCCCCACGCUUCGCGUGGGGCGCAGUGAAUAGGCCCAGGCGACUGUUUACCAAAAUCACAGCACUCUGCCAACACGAACAGUGGACGUAUAGGGUGUGACGCCUGCCCGGUGCCGGAAGGUCAAGUGGAGCGGUGCAAGCUGCGAAAUGAAGCCCCGGUGAACGGCGGCCGUAACUAUAACGGUCCUAAGGUAGCGAAAUUCCUUGUCGGGUAAGUUCCGACCUGCACGAAAGGCGUAACGAUCUGGGCGCUGUCUCAACGAGGGACUCGGUGAAAUUGAAUUGGCUGUAAAGAUGCGGCCUACCCGUAGCAGGACGAAAAGACCCCGUGGAGCUUUACUAUAGUCUGGCAUUGGGAUUCGGGUUUCUCUGCGUAGGAUAGGUGGGAGCCUGCGAAACUGGCCUUUUGGGGUCGGUGGAGGCAACGGUGAAAUACCACCCUGAGAAACUUGGAUUUCUAACCUGAAAAAUCACUUUCGGGGACCGUGCUUGGCGGGUAGUUUGACUGGGGCGGUCGCCUCCCAAAAUGUAACGGAGGCGCCCAAAGGUCACCUCAAGACGGUUGGAAAUCGUCUGUAGAGCGCAAAGGUAGAAGGUGGCUUGACUGCGAGACUGACACGUCGAGCAGGGAGGAAACUCGGGCUUAGUGAACCGGUGGUACCGUGUGGAAGGGCCAUCGAUCAACGGAUAAAAGUUACCCCGGGGAUAACAGGCUGAUCUCCCCCGAGAGUCCAUAUCGGCGGGGAGGUUUGGCACCUCGAUGUCGGCUCGUCGCAUCCUGGGGCUGAAGAAGGUCCCAAGGGUUGGGCUGUUCGCCCAUUAAAGCGGCACGCGAGCUGGGUUCAGAACGUCGUGAGACAGUUCGGUCUCUAUCCGCUACGGGCGCAGGAGAAUUGAGGGGAGUUGCUCCUAGUACGAGAGGACCGGAGUGAACGGACCGCUGGUCUCCCUGCUGUCGUACCAACGGCACAUGCAGGGUAGCUAUGUCCGGAACGGAUAACCGCUGAAAGCAUCUAAGCGGGAAGCCAGCCCCAAGAUGAGUUCUCCCACUGUUUAUCAGGUAAGACUCCCGGAAGACCACCGGGUUAAGAGGCCAGGCGUGCACGCAUAGCAAUGUGUUCAGCGGACUGGUGCUCAUCAGUCGAGGUCUUGACCACUC

Entity 2 Entity 2 polymer

Description description	50S ribosomal protein L23
Molecular weight formula_weight	10539.2 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	R

MSHYDILQAPVISEKAYSAMERGVYSFWVSPKATKTEIKDAIQQAFGVRVIGISTMNVPGKRKRVGRFIGQRNDRKKAIVRLAEGQSIEALAGQA

Entity 3 Entity 3 polymer

Description description	50S ribosomal protein L29
Molecular weight formula_weight	7775.0 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	W

MKPSEMRNLQATDFAKEIDARKKELMELRFQAAAGQLAQPHRVRQLRREVAQLNTVKAELARKGEQQ

Entity 4 Entity 4 polymer

Description description	Trigger Factor
Molecular weight formula_weight	12589.1 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	7

AELISKEGNKVEFKVSVPAAEVNRAYDQVWAGLARDVRVPGFRPGKAPRKVIENRVGKGYVESQVRDRLLETHYSQGLRELGLNLVDATVDPQDVQSGQAFEFTVKGETYPEV

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2aarr1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.12 — Ribosomal proteins S24e, L23 and L15e
Superfamily Superfamily superfamily	d.12.1 — Ribosomal proteins S24e, L23 and L15e
Family Family family	d.12.1.1 — L23p

Domain ID domain_id	d2aarw1
Class class	a — All alpha proteins
Fold Fold fold	a.2 — Long alpha-hairpin
Superfamily Superfamily superfamily	a.2.2 — Ribosomal protein L29 (L29p)
Family Family family	a.2.2.1 — Ribosomal protein L29 (L29p)

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Unit-cell length a length_a	169.386 Å
Unit-cell length b length_b	407.063 Å
Unit-cell length c length_c	692.746 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	I 2 2 2
Space-group number int_tables_number	23
Crystal system crystal_system	—

Resolution resolution	3.500 Å
Low-resolution limit resolution_low	8.000 Å
R factor r_factor	0.2670
R_work r_work	0.2510
R_free r_free	0.3200

Structure of trigger factor binding domain in biologically homologous complex with eubacterial ribosome.

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

50S ribosomal protein L23

State in the Current Structure

Other States of the Same Protein in the Database

50S ribosomal protein L29

State in the Current Structure

Other States of the Same Protein in the Database

Trigger Factor

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

2aar__assembly_1__model_1

2aar__assembly_1__model_1 | I(q)

2aar__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

7. Citations (1)

Structure of trigger factor binding domain in biologically homologous complex with eubacterial ribosome.

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

50S ribosomal protein L23

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

50S ribosomal protein L29

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Trigger Factor

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

2aar__assembly_1__model_1

2aar__assembly_1__model_1 | I(q)

2aar__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (2 domains)

7. Citations (1)