SAXSdb — 4w99

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

Enoyl-[acyl-carrier-protein] reductase [NADPH, B-specific] 1, mitochondrial

Candida tropicalis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	GLYCEROL × 3 SULFATE ION × 7 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ETR1_CANTR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–364； UniProt 23–386 Author chain B； PDBConstruct 1–364； UniProt 23–386

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	4w99
Deposition date deposition_date	2014-08-27
Structure title title	Apo-structure of the Y79F,W322E-double mutant of Etr1p
Keywords keywords	Reductase, mitochondrial fatty acid synthesis, 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.

4w99__assembly_1__model_1

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

Download this curve (.dat)

4w99__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4w99__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	32.01 Å
Rg (electron density)	31.58 Å
Total Rg	32.01 Å
Atom count	5617
Residues	728
Excluded volume	99824 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4w99__assembly_1__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	Enoyl-[acyl-carrier-protein] reductase [NADPH, B-specific] 1, mitochondrial
Molecular weight formula_weight	39482.3 kDa
EC 编号 ec_number	1.3.1.10,1.3.1.38
Mutation mutation	yes
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6396

MITAQAVLYTQHGEPKDVLFTQSFEIDDDNLAPNEVIVKTLGSPVNPSDINQIQGVFPSKPAKTTGFGTTEPAAPCGNEGLFEVIKVGSNVSSLEAGDWVIPSHVNFGTWRTHALGNDDDFIKLPNPAQSKANGKPNGLTINQGATISVNPLTAYLMLTHYVKLTPGKDWFIQNGGTSAVGKYASQIGKLLNFNSISVIRDRPNLDEVVASLKELGATQVITEDQNNSREFGPTIKEWIKQSGGEAKLALNCVGGKSSTGIARKLNNNGLMLTYGGMSFQPVTIPTSLYIFKNFTSAGFEVTELLKNNKELKTSTLNQIIAWYEEGKLTDAKSIETLYDGTKPLHELYQDGVANSKDGKQLITY

Source Source

Source organism organism	Candida tropicalis
Common name common_name	Yeast
NCBI taxonomy ID ncbi_taxonomy_id	5482
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	7

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	763

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	4w99A01
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	4w99A02
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

Domain ID domain_id	4w99B01
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	4w99B02
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	66.335 Å
Unit-cell length b length_b	100.933 Å
Unit-cell length c length_c	80.537 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	102.56 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.000 Å
Low-resolution limit resolution_low	39.305 Å
R factor r_factor	0.1735
R_work r_work	0.1714
R_free r_free	0.2141

Apo-structure of the Y79F,W322E-double mutant of Etr1p

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

Enoyl-[acyl-carrier-protein] reductase [NADPH, B-specific] 1, mitochondrial

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

4w99__assembly_1__model_1

4w99__assembly_1__model_1 | I(q)

4w99__assembly_1__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) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Apo-structure of the Y79F,W322E-double mutant of Etr1p

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

Enoyl-[acyl-carrier-protein] reductase [NADPH, B-specific] 1, mitochondrial

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

4w99__assembly_1__model_1

4w99__assembly_1__model_1 | I(q)

4w99__assembly_1__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) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)