SAXSdb — 4hjx

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

Tyrosine-tRNA ligase

Methanococcus Jannaschii DSM 2661

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	3,5-difluoro-L-tyrosine × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SYY_METJA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–306； UniProt 1–306 Author chain B； PDBConstruct 1–306； UniProt 1–306

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	4hjx
Deposition date deposition_date	2012-10-14
Structure title title	Crystal structure of F2YRS complexed with F2Y
Keywords keywords	AMINOACYL-TRNA SYNTHETASE, LIGASE; LIGASE
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.

4hjx__assembly_1__model_1

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

Download this curve (.dat)

4hjx__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4hjx__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	33.03 Å
Rg (electron density)	33.43 Å
Total Rg	33.69 Å
Atom count	4913
Residues	612
Excluded volume	88476 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4hjx__assembly_1__model_1`	dimeric （2）	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	Tyrosine-tRNA ligase
Molecular weight formula_weight	36051.8 kDa
Mutation mutation	Y32R,L65Y,H70G,F108N,Q109C,D158N,L162S
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	4977

MDEFEMIKRNTSEIISEEELREVLKKDEKSARIGFEPSGKIHLGHYLQIKKMIDLQNAGFDIIIYLADLGAYLNQKGELDEIRKIGDYNKKVFEAMGLKAKYVYGSENCLDKDYTLNVYRLALKTTLKRARRSMELIAREDENPKVAEVIYPIMQVNNIHYSGVDVAVGGMEQRKIHMLARELLPKKVVCIHNPVLTGLDGEGKMSSSKGNFIAVDDSPEEIRAKIKKAYCPAGVVEGNPIMEIAKYFLEYPLTIKRPEKFGGDLTVNSYEELESLFKNKELHPMDLKNAVAEELIKILEPIRKRLLEHHHHHH

Source Source

Source organism organism	Methanococcus Jannaschii DSM 2661
NCBI taxonomy ID ncbi_taxonomy_id	243232
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	3,5-difluoro-L-tyrosine
Molecular weight formula_weight	217.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	64

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d4hjxa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
Superfamily Superfamily superfamily	c.26.1 — Nucleotidylyl transferase
Family Family family	c.26.1.1 — Class I aminoacyl-tRNA synthetases (RS), catalytic domain

Domain ID domain_id	d4hjxb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.26 — Adenine nucleotide alpha hydrolase-like
Superfamily Superfamily superfamily	c.26.1 — Nucleotidylyl transferase
Family Family family	c.26.1.1 — Class I aminoacyl-tRNA synthetases (RS), catalytic domain

CATH v4.4 (4 domains)

Domain ID domain_id	4hjxA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	620 — HUPs

Domain ID domain_id	4hjxA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	240 — Tyrosyl-Transfer RNA Synthetase
Homologous superfamily homologous superfamily	10 — Tyrosyl-Transfer RNA Synthetase

Domain ID domain_id	4hjxB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	620 — HUPs

Domain ID domain_id	4hjxB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	240 — Tyrosyl-Transfer RNA Synthetase
Homologous superfamily homologous superfamily	10 — Tyrosyl-Transfer RNA Synthetase

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Unit-cell length a length_a	101.307 Å
Unit-cell length b length_b	101.307 Å
Unit-cell length c length_c	71.779 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
Space-group number int_tables_number	78
Crystal system crystal_system	—

Resolution resolution	2.910 Å
Low-resolution limit resolution_low	24.594 Å
R factor r_factor	0.2135
R_work r_work	0.2113
R_free r_free	0.2676

Crystal structure of F2YRS complexed with F2Y

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

Tyrosine-tRNA ligase

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

4hjx__assembly_1__model_1

4hjx__assembly_1__model_1 | I(q)

4hjx__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of F2YRS complexed with F2Y

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

Tyrosine-tRNA ligase

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

4hjx__assembly_1__model_1

4hjx__assembly_1__model_1 | I(q)

4hjx__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (1)