SAXSdb — 6v5f

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

L-asparaginase 2

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	ASPARTIC ACID × 2 SUCCINIC ACID × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ASPG2_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–326； UniProt 23–348 Author chain B； PDBConstruct 1–326； UniProt 23–348 Author chain C； PDBConstruct 1–326； UniProt 23–348 Author chain D； PDBConstruct 1–326； UniProt 23–348

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	6v5f
Deposition date deposition_date	2019-12-04
Structure title title	L-asparaginase from Escherichia coli
Keywords keywords	L-asparaginase, catalytic mechanism, leukemia, HYDROLASE; HYDROLASE
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.

6v5f__assembly_1__model_1

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

Download this curve (.dat)

6v5f__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

6v5f__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.98 Å
Rg (electron density)	29.11 Å
Total Rg	30.00 Å
Atom count	9213
Residues	1227
Excluded volume	163700 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`6v5f__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	L-asparaginase 2
Molecular weight formula_weight	34626.8 kDa
EC 编号 ec_number	3.5.1.1
Source method src_method	nat
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	9423

LPNITILATGGTIAGGGDSATKSNYTVGKVGVENLVNAVPQLKDIANVKGEQVVNIGSQDMNDNVWLTLAKKINTDCDKTDGFVITHGTDTMEETAYFLDLTVKCDKPVVMVGAMRPSTSMSADGPFNLYNAVVTAADKASANRGVLVVMNDTVLDGRDVTKTNTTDVATFKSVNYGPLGYIHNGKIDYQRTPARKHTSDTPFDVSKLNELPKVGIVYNYANASDLPAKALVDAGYDGIVSAGVGNGNLYKSVFDTLATAAKTGTAVVRSSRVPTGATTQDAEVDDAKYGFVASGTLNPQKARVLLQLALTQTKDPQQIQQIFNQY

Entity 2 Entity 2 non-polymer

Description description	ASPARTIC ACID
Molecular weight formula_weight	133.1 kDa
Source method src_method	nat
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SUCCINIC ACID
Molecular weight formula_weight	118.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	210

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d6v5fa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.88 — Glutaminase/Asparaginase
Superfamily Superfamily superfamily	c.88.1 — Glutaminase/Asparaginase
Family Family family	c.88.1.1 — Glutaminase/Asparaginase

Domain ID domain_id	d6v5fb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.88 — Glutaminase/Asparaginase
Superfamily Superfamily superfamily	c.88.1 — Glutaminase/Asparaginase
Family Family family	c.88.1.1 — Glutaminase/Asparaginase

Domain ID domain_id	d6v5fc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.88 — Glutaminase/Asparaginase
Superfamily Superfamily superfamily	c.88.1 — Glutaminase/Asparaginase
Family Family family	c.88.1.1 — Glutaminase/Asparaginase

Domain ID domain_id	d6v5fd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.88 — Glutaminase/Asparaginase
Superfamily Superfamily superfamily	c.88.1 — Glutaminase/Asparaginase
Family Family family	c.88.1.1 — Glutaminase/Asparaginase

CATH v4.4 (6 domains)

Domain ID domain_id	6v5fB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1170 — L-asparaginase, N-terminal domain

Domain ID domain_id	6v5fB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6v5fC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1170 — L-asparaginase, N-terminal domain

Domain ID domain_id	6v5fC02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	6v5fD01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1170 — L-asparaginase, N-terminal domain

Domain ID domain_id	6v5fD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	40 —

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Unit-cell length a length_a	57.917 Å
Unit-cell length b length_b	125.435 Å
Unit-cell length c length_c	68.816 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	106.94 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

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

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	33.370 Å
R factor r_factor	0.2325
R_work r_work	0.2298
R_free r_free	0.2976

L-asparaginase from Escherichia coli

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

L-asparaginase 2

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

6v5f__assembly_1__model_1

6v5f__assembly_1__model_1 | I(q)

6v5f__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)

L-asparaginase from Escherichia coli

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

L-asparaginase 2

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

6v5f__assembly_1__model_1

6v5f__assembly_1__model_1 | I(q)

6v5f__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 (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)