SAXSdb — 3iav

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

Propionyl-CoA carboxylase complex B subunit

Streptomyces coelicolor

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	SULFATE ION × 18 water × 6	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	SULFATE ION × 6 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9X4K7_STRCO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–530； UniProt 1–530 Author chain B； PDBConstruct 1–530； UniProt 1–530

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	3iav
Deposition date deposition_date	2009-07-14
Structure title title	Propionyl-CoA Carboxylase Beta Subunit, D422V
Keywords keywords	;ACCase, PCCase, ACC, PCC, Propionyl-CoA, CT, Carboxyltransferase, Polyketide, Fatty Acid, PKS, FAS, Polyketide Synthase, Fatty Acid Synthase, Carboxylase, beta subunit, PccB, Acyl-CoA, Acyl-CoA Carboxylase, Streptomces, Streptomyces coelicolor, Biotin, BIOSYNTHETIC PROTEIN ;; BIOSYNTHETIC PROTEIN
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.

3iav__assembly_1__model_1

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

Download this curve (.dat)

3iav__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3iav__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	43.89 Å
Rg (electron density)	42.70 Å
Total Rg	43.10 Å
Atom count	23802
Residues	3126
Excluded volume	419950 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3iav__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`3iav__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 (3)

Entity 1 Entity 1 polymer

Description description	Propionyl-CoA carboxylase complex B subunit
Molecular weight formula_weight	57208.2 kDa
Mutation mutation	D422V
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	8254

MSEPEEQQPDIHTTAGKLADLRRRIEEATHAGSARAVEKQHAKGKLTARERIDLLLDEGSFVELDEFARHRSTNFGLDANRPYGDGVVTGYGTVDGRPVAVFSQDFTVFGGALGEVYGQKIVKVMDFALKTGCPVVGINDSGGARIQEGVASLGAYGEIFRRNTHASGVIPQISLVVGPCAGGAVYSPAITDFTVMVDQTSHMFITGPDVIKTVTGEDVGFEELGGARTHNSTSGVAHHMAGDEKDAVEYVKQLLSYLPSNNLSEPPAFPEEADLAVTDEDAELDTIVPDSANQPYDMHSVIEHVLDDAEFFETQPLFAPNILTGFGRVEGRPVGIVANQPMQFAGCLDITASEKAARFVRTCDAFNVPVLTFVDVPGFLPGVDQEHDGIIRRGAKLIFAYAEATVPLITVITRKAFGGAYVVMGSKHLGADLNLAWPTAQIAVMGAQGAVNILHRRTIADAGDDAEATRARLIQEYEDALLNPYTAAERGYVDAVIMPSDTRRHIVRGLRQLRTKRESLPPKKHGNIPL

Source Source

Source organism organism	Streptomyces coelicolor
NCBI taxonomy ID ncbi_taxonomy_id	1902
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	320

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d3iava1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.14 — ClpP/crotonase
Superfamily Superfamily superfamily	c.14.1 — ClpP/crotonase
Family Family family	c.14.1.0 — automated matches

Domain ID domain_id	d3iava2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.14 — ClpP/crotonase
Superfamily Superfamily superfamily	c.14.1 — ClpP/crotonase
Family Family family	c.14.1.0 — automated matches

Domain ID domain_id	d3iavb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.14 — ClpP/crotonase
Superfamily Superfamily superfamily	c.14.1 — ClpP/crotonase
Family Family family	c.14.1.0 — automated matches

Domain ID domain_id	d3iavb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.14 — ClpP/crotonase
Superfamily Superfamily superfamily	c.14.1 — ClpP/crotonase
Family Family family	c.14.1.0 — automated matches

CATH v4.4 (4 domains)

Domain ID domain_id	3iavA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	3iavA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	3iavB01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	3iavB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

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Unit-cell length a length_a	171.531 Å
Unit-cell length b length_b	171.531 Å
Unit-cell length c length_c	75.068 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	12

Space group space_group	P 63
Space-group number int_tables_number	173
Crystal system crystal_system	—

Resolution resolution	1.750 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	—
R_work r_work	0.2170
R_free r_free	0.2330

Propionyl-CoA Carboxylase Beta Subunit, D422V

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

Propionyl-CoA carboxylase complex B subunit

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

3iav__assembly_1__model_1

3iav__assembly_1__model_1 | I(q)

3iav__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Propionyl-CoA Carboxylase Beta Subunit, D422V

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

Propionyl-CoA carboxylase complex B subunit

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

3iav__assembly_1__model_1

3iav__assembly_1__model_1 | I(q)

3iav__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)