SAXSdb — 3b6z

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

Enoyl reductase

Aspergillus terreus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	;S-{(9R,13R,15S)-17-[(2R,3R,4R,5R)-5-(6-amino-9H-purin-9-yl)-3-hydroxy-4-(phosphonooxy)tetrahydrofuran-2-yl]-9,13,15-trihydroxy-10,10-dimethyl-13,15-dioxido-4,8-dioxo-12,14,16-trioxa-3,7-diaza-13,15-diphosphaheptadec-1-yl}(2E)-but-2-enethioate ; × 1 GLYCEROL × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9Y7D0_ASPTE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–363； UniProt 1–363

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	3b6z
Deposition date deposition_date	2007-10-29
Structure title title	Lovastatin polyketide enoyl reductase (LovC) complexed with 2'-phosphoadenosyl isomer of crotonoyl-CoA
Keywords keywords	medium-chain reductase, rossmann fold, NADP-binding, 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.

3b6z__assembly_1__model_1

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

Download this curve (.dat)

3b6z__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3b6z__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.19 Å
Rg (electron density)	20.28 Å
Total Rg	21.14 Å
Atom count	2765
Residues	352
Excluded volume	48962 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3b6z__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	Enoyl reductase
Molecular weight formula_weight	40622.9 kDa
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	2985

MGDQPFIPPPQQTALTVNDHDEVTVWNAAPCPMLPRDQVYVRVEAVAINPSDTKMRGQFATPWAFLGTDYAGTVVAVGSDVTHIQVGDRVYGAQNEMCPRTPDQGAFSQYTVTRGRVWAKIPKGLSFEQAAALPAGISTAGLAMKLLGLPLPSPSADQPPTHSKPVYVLVYGGSTATATVTMQMLRLSGYIPIATCSPHNFDLAKSRGAEEVFDYRAPNLAQTIRTYTKNNLRYALDCITNVESTTFCFAAIGRAGGHYVSLNPFPEHAATRKMVTTDWTLGPTIFGEGSTWPAPYGRPGSEEERQFGEDLWRIAGQLVEDGRLVHHPLRVVQGGFDHIKQGMELVRKGELSGEKLVVRLEGPLEHHHHHH

Source Source

Source organism organism	Aspergillus terreus
NCBI taxonomy ID ncbi_taxonomy_id	33178
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	;S-{(9R,13R,15S)-17-[(2R,3R,4R,5R)-5-(6-amino-9H-purin-9-yl)-3-hydroxy-4-(phosphonooxy)tetrahydrofuran-2-yl]-9,13,15-trihydroxy-10,10-dimethyl-13,15-dioxido-4,8-dioxo-12,14,16-trioxa-3,7-diaza-13,15-diphosphaheptadec-1-yl}(2E)-but-2-enethioate ;
Molecular weight formula_weight	835.6 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 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	220

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	3b6zA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	180 — Quinone Oxidoreductase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — Medium-chain alcohol dehydrogenases, catalytic domain

Domain ID domain_id	3b6zA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

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Unit-cell length a length_a	44.334 Å
Unit-cell length b length_b	54.867 Å
Unit-cell length c length_c	171.820 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	4

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

Resolution resolution	1.880 Å
Low-resolution limit resolution_low	39.620 Å
R factor r_factor	—
R_work r_work	0.1710
R_free r_free	0.2210

Lovastatin polyketide enoyl reductase (LovC) complexed with 2'-phosphoadenosyl isomer of crotonoyl-CoA

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

Enoyl 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

3b6z__assembly_1__model_1

3b6z__assembly_1__model_1 | I(q)

3b6z__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) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)

Lovastatin polyketide enoyl reductase (LovC) complexed with 2'-phosphoadenosyl isomer of crotonoyl-CoA

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

Enoyl 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

3b6z__assembly_1__model_1

3b6z__assembly_1__model_1 | I(q)

3b6z__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) 2 domains

CATH v4.4 (2 domains)

7. Citations (1)