1nda

THE STRUCTURE OF TRYPANOSOMA CRUZI TRYPANOTHIONE REDUCTASE IN THE OXIDIZED AND NADPH REDUCED STATE

Method: X-RAY DIFFRACTION

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

TRYPANOTHIONE OXIDOREDUCTASE

Trypanosoma cruzi

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	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	FLAVIN-ADENINE DINUCLEOTIDE × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TYTR_TRYCR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–491； UniProt 2–492 Author chain B； PDBConstruct 1–491； UniProt 2–492 Author chain C； PDBConstruct 1–491； UniProt 2–492 Author chain D； PDBConstruct 1–491； UniProt 2–492

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	1nda
Deposition date deposition_date	1993-07-02
Structure title title	THE STRUCTURE OF TRYPANOSOMA CRUZI TRYPANOTHIONE REDUCTASE IN THE OXIDIZED AND NADPH REDUCED STATE
Keywords keywords	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.

1nda__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1nda__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1nda__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	31.64 Å
Rg (electron density)	30.83 Å
Total Rg	31.41 Å
Atom count	7508
Residues	962
Excluded volume	133950 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1nda__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1nda__assembly_2__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 (2)

Entity 1 Entity 1 polymer

Description description	TRYPANOTHIONE OXIDOREDUCTASE
Molecular weight formula_weight	53797.5 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	15016

MSKIFDLVVIGAGSGGLEAAWNAATLYKKRVAVIDVQMVHGPPFFSALGGTCVNVGCVPKKLMVTGAQYMEHLRESAGFGWEFDRTTLRAEWKKLIAVKDEAVLNINKSYEEMFRDTEGLEFFLGWGSLESKNVVNVRESADPASAVKERLETENILLASGSWPHMPNIPGIEHCISSNEAFYLPEPPRRVLTVGGGFISVEFAGIFNAYKPKDGQVTLCYRGEMILRGFDHTLREELTKQLTANGIQILTKENPAKVELNADGSKSVTFESGKKMDFDLVMMAIGRSPRTKDLQLQNAGVMIKNGGVQVDEYSRTNVSNIYAIGDVTNRVMLTPVAINEAAALVDTVFGTNPRKTDHTRVASAVFSIPPIGTCGLIEEVASKRYEVVAVYLSSFTPLMHNISGSKYKTFVAKIITNHSDGTVLGVHLLGDNAPEIIQGVGICLKLNAKISDFYNTIGVHPTSAEELCSMRTPSYYYVKGEKMEKPSEASL

Source Source

Source organism organism	Trypanosoma cruzi
NCBI taxonomy ID ncbi_taxonomy_id	5693

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	4

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_id	d1ndaa1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndaa2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndaa3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.87 — CO dehydrogenase flavoprotein C-domain-like
Superfamily Superfamily superfamily	d.87.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain
Family Family family	d.87.1.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain

Domain ID domain_id	d1ndab1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndab2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndab3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.87 — CO dehydrogenase flavoprotein C-domain-like
Superfamily Superfamily superfamily	d.87.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain
Family Family family	d.87.1.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain

Domain ID domain_id	d1ndac1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndac2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndac3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.87 — CO dehydrogenase flavoprotein C-domain-like
Superfamily Superfamily superfamily	d.87.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain
Family Family family	d.87.1.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain

Domain ID domain_id	d1ndad1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndad2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.3 — FAD/NAD(P)-binding domain
Superfamily Superfamily superfamily	c.3.1 — FAD/NAD(P)-binding domain
Family Family family	c.3.1.5 — FAD/NAD-linked reductases, N-terminal and central domains

Domain ID domain_id	d1ndad3
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.87 — CO dehydrogenase flavoprotein C-domain-like
Superfamily Superfamily superfamily	d.87.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain
Family Family family	d.87.1.1 — FAD/NAD-linked reductases, dimerisation (C-terminal) domain

CATH v4.4 (12 domains)

Domain ID domain_id	1ndaA01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaA02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

Domain ID domain_id	1ndaB01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaB02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

Domain ID domain_id	1ndaC01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaC02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaC03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

Domain ID domain_id	1ndaD01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaD02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	1ndaD03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

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Unit-cell length a length_a	136.300 Å
Unit-cell length b length_b	91.100 Å
Unit-cell length c length_c	126.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	94.00 °
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	3.300 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	0.2060
R_work r_work	0.2060
R_free r_free	—

THE STRUCTURE OF TRYPANOSOMA CRUZI TRYPANOTHIONE REDUCTASE IN THE OXIDIZED AND NADPH REDUCED STATE

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

TRYPANOTHIONE OXIDOREDUCTASE

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

1nda__assembly_2__model_1

1nda__assembly_2__model_1 | I(q)

1nda__assembly_2__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (2)

THE STRUCTURE OF TRYPANOSOMA CRUZI TRYPANOTHIONE REDUCTASE IN THE OXIDIZED AND NADPH REDUCED STATE

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

TRYPANOTHIONE OXIDOREDUCTASE

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

1nda__assembly_2__model_1

1nda__assembly_2__model_1 | I(q)

1nda__assembly_2__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 (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

CATH v4.4 (12 domains)

7. Citations (2)