1rz1

Reduced flavin reductase PheA2 in complex with NAD

Method: X-RAY DIFFRACTION

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

phenol 2-hydroxylase component B

Geobacillus thermoglucosidasius

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	FLAVIN-ADENINE DINUCLEOTIDE × 2 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	FLAVIN-ADENINE DINUCLEOTIDE × 2 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 water × 2	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 2	FLAVIN-ADENINE DINUCLEOTIDE × 2 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 water × 2	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 2	FLAVIN-ADENINE DINUCLEOTIDE × 2 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9LAG2_BACTR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–161； UniProt 1–161 Author chain B； PDBConstruct 1–161； UniProt 1–161 Author chain C； PDBConstruct 1–161； UniProt 1–161 Author chain D； PDBConstruct 1–161； UniProt 1–161 Author chain E； PDBConstruct 1–161； UniProt 1–161 Author chain F； PDBConstruct 1–161； UniProt 1–161 Author chain G； PDBConstruct 1–161； UniProt 1–161 Author chain H； PDBConstruct 1–161； UniProt 1–161

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	1rz1
Deposition date deposition_date	2003-12-23
Structure title title	Reduced flavin reductase PheA2 in complex with NAD
Keywords keywords	flavin, NAD, OXIDOREDUCTASE; OXIDOREDUCTASE
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.

1rz1__assembly_3__model_1

Assembly 3 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1rz1__assembly_3__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1rz1__assembly_3__model_1 | P(r) · Pending

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

Rg（Guinier）	19.70 Å
Rg (electron density)	18.64 Å
Total Rg	19.50 Å
Atom count	2546
Residues	294
Excluded volume	45423 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1rz1__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1rz1__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1rz1__assembly_3__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1rz1__assembly_4__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 (4)

Entity 1 Entity 1 polymer

Description description	phenol 2-hydroxylase component B
Molecular weight formula_weight	17957.7 kDa
Source method src_method	man
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H
Atom count atom_count	10581

MDDRLFRNAMGKFATGVTVITTELNGAVHGMTANAFMSVSLNPKLVLVSIGEKAKMLEKIQQSKKYAVNILSQDQKVLSMNFAGQLEKPVDVQFEELGGLPVIKDALAQISCQVVNEVQAGDHTLFIGEVTDIKITEQDPLLFFSGKYHQLAQNEKVETSS

Source Source

Source organism organism	Geobacillus thermoglucosidasius
NCBI taxonomy ID ncbi_taxonomy_id	1426
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	FLAVIN-ADENINE DINUCLEOTIDE
Molecular weight formula_weight	785.5 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 3 Entity 3 non-polymer

Description description	NICOTINAMIDE-ADENINE-DINUCLEOTIDE
Molecular weight formula_weight	663.4 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	397

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d1rz1a_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1b_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1c_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1d_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1e_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1f_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1g_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

Domain ID domain_id	d1rz1h_
Class class	b — All beta proteins
Fold Fold fold	b.45 — Split barrel-like
Superfamily Superfamily superfamily	b.45.1 — FMN-binding split barrel
Family Family family	b.45.1.2 — NADH:FMN oxidoreductase-like

CATH v4.4 (8 domains)

Domain ID domain_id	1rz1A00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1B00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1C00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1D00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1E00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1F00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1G00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

Domain ID domain_id	1rz1H00
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	110 — Pnp Oxidase; Chain A
Homologous superfamily homologous superfamily	10 — Electron Transport, Fmn-binding Protein; Chain A

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Unit-cell length a length_a	53.693 Å
Unit-cell length b length_b	156.457 Å
Unit-cell length c length_c	83.925 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	91.11 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

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	15.000 Å
R factor r_factor	0.2373
R_work r_work	0.2369
R_free r_free	0.2560

Reduced flavin reductase PheA2 in complex with NAD

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

phenol 2-hydroxylase component B

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

1rz1__assembly_3__model_1

1rz1__assembly_3__model_1 | I(q)

1rz1__assembly_3__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

CATH v4.4 (8 domains)

7. Citations (1)

Reduced flavin reductase PheA2 in complex with NAD

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

phenol 2-hydroxylase component B

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

1rz1__assembly_3__model_1

1rz1__assembly_3__model_1 | I(q)

1rz1__assembly_3__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

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

CATH v4.4 (8 domains)

7. Citations (1)