SAXSdb — 1qcn

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

FUMARYLACETOACETATE HYDROLASE

Mus musculus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	CALCIUM ION × 2 ACETATE ION × 4 NICKEL (II) ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FAAA_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–421； UniProt 1–419 Author chain B； PDBConstruct 3–421； UniProt 1–419

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	1qcn
Deposition date deposition_date	1999-05-14
Structure title title	CRYSTAL STRUCTURE OF FUMARYLACETOACETATE HYDROLASE
Keywords keywords	MIXED BETA SANDWICH ROLL, 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.

1qcn__assembly_1__model_1

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

Download this curve (.dat)

1qcn__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1qcn__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	28.52 Å
Rg (electron density)	27.48 Å
Total Rg	28.23 Å
Atom count	6482
Residues	805
Excluded volume	115560 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1qcn__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 (5)

Entity 1 Entity 1 polymer

Description description	FUMARYLACETOACETATE HYDROLASE
Molecular weight formula_weight	47047.0 kDa
EC 编号 ec_number	3.7.1.2
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	7086

GSMSFIPVAEDSDFPIQNLPYGVFSTQSNPKPRIGVAIGDQILDLSVIKHLFTGPALSKHQHVFDETTLNNFMGLGQAAWKEARASLQNLLSASQARLRDDKELRQRAFTSQASATMHLPATIGDYTDFYSSRQHATNVGIMFRGKENALLPNWLHLPVGYHGRASSIVVSGTPIRRPMGQMRPDNSKPPVYGACRLLDMELEMAFFVGPGNRFGEPIPISKAHEHIFGMVLMNDWSARDIQQWEYVPLGPFLGKSFGTTISPWVVPMDALMPFVVPNPKQDPKPLPYLCHSQPYTFDINLSVSLKGEGMSQAATICRSNFKHMYWTMLQQLTHHSVNGCNLRPGDLLASGTISGSDPESFGSMLELSWKGTKAIDVGQGQTRTFLLDGDEVIITGHCQGDGYRVGFGQCAGKVLPALSPA

Source Source

Source organism organism	Mus musculus
Common name common_name	house mouse
NCBI taxonomy ID ncbi_taxonomy_id	10090
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	ACETATE ION
Molecular weight formula_weight	59.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

Description description	NICKEL (II) ION
Molecular weight formula_weight	58.7 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	604

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6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d1qcna1
Class class	b — All beta proteins
Fold Fold fold	b.34 — SH3-like barrel
Superfamily Superfamily superfamily	b.34.8 — Fumarylacetoacetate hydrolase, FAH, N-terminal domain
Family Family family	b.34.8.1 — Fumarylacetoacetate hydrolase, FAH, N-terminal domain

Domain ID domain_id	d1qcna2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.177 — FAH
Superfamily Superfamily superfamily	d.177.1 — FAH
Family Family family	d.177.1.1 — FAH

Domain ID domain_id	d1qcnb1
Class class	b — All beta proteins
Fold Fold fold	b.34 — SH3-like barrel
Superfamily Superfamily superfamily	b.34.8 — Fumarylacetoacetate hydrolase, FAH, N-terminal domain
Family Family family	b.34.8.1 — Fumarylacetoacetate hydrolase, FAH, N-terminal domain

Domain ID domain_id	d1qcnb2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.177 — FAH
Superfamily Superfamily superfamily	d.177.1 — FAH
Family Family family	d.177.1.1 — FAH

Domain ID domain_id	d1qcnb3
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id	1qcnA01
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	230 — Fumarylacetoacetase, N-terminal domain

Domain ID domain_id	1qcnA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

Domain ID domain_id	1qcnB01
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	30 — SH3 type barrels.
Homologous superfamily homologous superfamily	230 — Fumarylacetoacetase, N-terminal domain

Domain ID domain_id	1qcnB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	850 — Fumarylacetoacetate hydrolase; domain 2
Homologous superfamily homologous superfamily	10 — Fumarylacetoacetase-like, C-terminal domain

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Unit-cell length a length_a	64.321 Å
Unit-cell length b length_b	110.343 Å
Unit-cell length c length_c	67.533 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	102.38 °
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	1.900 Å
Low-resolution limit resolution_low	22.000 Å
R factor r_factor	0.1910
R_work r_work	0.1910
R_free r_free	0.2200

CRYSTAL STRUCTURE OF FUMARYLACETOACETATE HYDROLASE

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

FUMARYLACETOACETATE HYDROLASE

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

1qcn__assembly_1__model_1

1qcn__assembly_1__model_1 | I(q)

1qcn__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (5 domains)

CATH v4.4 (4 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF FUMARYLACETOACETATE HYDROLASE

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

FUMARYLACETOACETATE HYDROLASE

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

1qcn__assembly_1__model_1

1qcn__assembly_1__model_1 | I(q)

1qcn__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (5 domains)

CATH v4.4 (4 domains)

7. Citations (1)