SAXSdb — 2pia

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

PHTHALATE DIOXYGENASE REDUCTASE

Burkholderia cepacia

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	FLAVIN MONONUCLEOTIDE × 1 FE2/S2 (INORGANIC) CLUSTER × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PDR_BURCE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–321； UniProt 2–322

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	2pia
Deposition date deposition_date	1993-02-15
Structure title title	PHTHALATE DIOXYGENASE REDUCTASE: A MODULAR STRUCTURE FOR ELECTRON TRANSFER FROM PYRIDINE NUCLEOTIDES TO [2FE-2S]
Keywords keywords	REDUCTASE; REDUCTASE
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.

2pia__assembly_1__model_1

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

Download this curve (.dat)

2pia__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2pia__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.46 Å
Rg (electron density)	20.59 Å
Total Rg	21.30 Å
Atom count	2530
Residues	321
Excluded volume	44363 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2pia__assembly_1__model_1`	monomeric （1）	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	PHTHALATE DIOXYGENASE REDUCTASE
Molecular weight formula_weight	35579.8 kDa
EC 编号 ec_number	1.18.1.-
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2666

TTPQEDGFLRLKIASKEKIARDIWSFELTDPQGAPLPPFEAGANLTVAVPNGSRRTYSLCNDSQERNRYVIAVKRDSNGRGGSISFIDDTSEGDAVEVSLPRNEFPLDKRAKSFILVAGGIGITPMLSMARQLRAEGLRSFRLYYLTRDPEGTAFFDELTSDEWRSDVKIHHDHGDPTKAFDFWSVFEKSKPAQHVYCCGPQALMDTVRDMTGHWPSGTVHFESFGATNTNARENTPFTVRLSRSGTSFEIPANRSILEVLRDANVRVPSSCESGTCGSCKTALCSGEADHRDMVLRDDEKGTQIMVCVSRAKSAELVLDL

Source Source

Source organism organism	Burkholderia cepacia
NCBI taxonomy ID ncbi_taxonomy_id	292

Entity 2 Entity 2 non-polymer

Description description	FLAVIN MONONUCLEOTIDE
Molecular weight formula_weight	456.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	FE2/S2 (INORGANIC) CLUSTER
Molecular weight formula_weight	175.8 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	136

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2piaa1
Class class	b — All beta proteins
Fold Fold fold	b.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamily	b.43.4 — Riboflavin synthase domain-like
Family Family family	b.43.4.2 — Ferredoxin reductase FAD-binding domain-like

Domain ID domain_id	d2piaa2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.25 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Superfamily Superfamily superfamily	c.25.1 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Family Family family	c.25.1.2 — Aromatic dioxygenase reductase-like

Domain ID domain_id	d2piaa3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamily	d.15.4 — 2Fe-2S ferredoxin-like
Family Family family	d.15.4.2 — 2Fe-2S ferredoxin domains from multidomain proteins

CATH v4.4 (3 domains)

Domain ID domain_id	2piaA01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily	10 — Translation factors

Domain ID domain_id	2piaA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	80 — Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module

Domain ID domain_id	2piaA03
Class class	3 — Alpha Beta
Architecture architecture	10 — Roll
Topology topology	20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily	30 — Beta-grasp domain

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Unit-cell length a length_a	114.400 Å
Unit-cell length b length_b	114.400 Å
Unit-cell length c length_c	77.800 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	9

Space group space_group	H 3
Space-group number int_tables_number	146
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	10.000 Å
R factor r_factor	—
R_work r_work	0.1860
R_free r_free	—

PHTHALATE DIOXYGENASE REDUCTASE: A MODULAR STRUCTURE FOR ELECTRON TRANSFER FROM PYRIDINE NUCLEOTIDES TO [2FE-2S]

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

PHTHALATE DIOXYGENASE REDUCTASE

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

2pia__assembly_1__model_1

2pia__assembly_1__model_1 | I(q)

2pia__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (4)

PHTHALATE DIOXYGENASE REDUCTASE: A MODULAR STRUCTURE FOR ELECTRON TRANSFER FROM PYRIDINE NUCLEOTIDES TO [2FE-2S]

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

PHTHALATE DIOXYGENASE REDUCTASE

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

2pia__assembly_1__model_1

2pia__assembly_1__model_1 | I(q)

2pia__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (4)