1sp8

4-Hydroxyphenylpyruvate Dioxygenase

Method: X-RAY DIFFRACTION

▼

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

No usable UniProt protein identity is available for this entry.

The relationship tables retain this entry's assembly and composition data, but cross-PDB links for the same protein cannot be established reliably without a unified protein identity.

Assembly Composition of the Current Entry

Assembly	Physical composition	Protein state	蛋白 / DNA / RNA / 其他Polymer	Data consistency
1	Protein homooligomer	Homooligomer	2 / 0 / 0 / 0	Consistent with protein count
2	Protein homooligomer	Homooligomer	2 / 0 / 0 / 0	Consistent with protein count

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	1sp8
Deposition date deposition_date	2004-03-16
Structure title title	4-Hydroxyphenylpyruvate Dioxygenase
Keywords keywords	OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method method	X-RAY DIFFRACTION

▼

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.

1sp8__assembly_1__model_1

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

Download this curve (.dat)

1sp8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1sp8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	29.03 Å
Rg (electron density)	27.90 Å
Total Rg	28.70 Å
Atom count	5911
Residues	780
Excluded volume	103950 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1sp8__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1sp8__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Description description	4-Hydroxyphenylpyruvate Dioxygenase
Molecular weight formula_weight	44834.0 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	12660

ASAAEQAAFRLVGHRNFVRFNPRSDRFHTLAFHHVELWCADAASAAGRFSFGLGAPLAARSDLSTGNSAHASLLLRSGSLSFLFTAPYAHGADAATAALPSFSAAAARRFAADHGLAVRAVALRVADAEDAFRASVAAGARPAFGPVDLGRGFRLAEVELYGDVVLRYVSYPDGAAGEPFLPGFEGVASPGAADYGLSRFDHIVGNVPELAPAAAYFAGFTGFHEFAEFTTEDVGTAESGLNSMVLANNSENVLLPLNEPVHGTKRRSQIQTFLDHHGGPGVQHMALASDDVLRTLREMQARSAMGGFEFMAPPTSDYYDGVRRRAGDVLTEAQIKECQELGVLVDRDDQGVLLQIFTKPVGDRPTLFLEIIQRIGCMEKDEKGQEYQKGGCGGFGKGNFSQLFKSIEDYEKSLEAKQ

Source Source

Source organism organism	Zea mays
NCBI taxonomy ID ncbi_taxonomy_id	4577
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	FE (II) ION
Molecular weight formula_weight	55.8 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	847

▼

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d1sp8a1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8a2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8b1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8b2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8c1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8c2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8d1
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

Domain ID domain_id	d1sp8d2
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.32 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Superfamily Superfamily superfamily	d.32.1 — Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenase
Family Family family	d.32.1.3 — Extradiol dioxygenases

CATH v4.4 (8 domains)

Domain ID domain_id	1sp8A01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8A02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8B01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8B02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8C01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8C02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8D01
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

Domain ID domain_id	1sp8D02
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	180 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase; domain 1
Homologous superfamily homologous superfamily	10 — 2,3-Dihydroxybiphenyl 1,2-Dioxygenase, domain 1

▶

Unit-cell length a length_a	89.000 Å
Unit-cell length b length_b	110.900 Å
Unit-cell length c length_c	174.800 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	16

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	19.840 Å
R factor r_factor	—
R_work r_work	0.2750
R_free r_free	0.3240