SAXSdb — 1poi

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

GLUTACONATE COENZYME A-TRANSFERASE

Acidaminococcus fermentans

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	GLUTACONATE COENZYME A-TRANSFERASE × 4 （Q59112） COPPER (II) ION × 2 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GCTA_ACIFE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–317； UniProt 1–317 Author chain C； PDBConstruct 1–317； UniProt 1–317

GLUTACONATE COENZYME A-TRANSFERASE

Acidaminococcus fermentans

UniProt Q59112

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 8	GLUTACONATE COENZYME A-TRANSFERASE × 4 （Q59111） COPPER (II) ION × 2 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GCTB_ACIFE
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–260； UniProt 2–261 Author chain D； PDBConstruct 1–260； UniProt 2–261

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	1poi
Deposition date deposition_date	1997-01-24
Structure title title	CRYSTAL STRUCTURE OF GLUTACONATE COENZYME A-TRANSFERASE FROM ACIDAMINOCOCCUS FERMENTANS TO 2.55 ANGSTOMS RESOLUTION
Keywords keywords	TRANSFERASE, COA, GLUTAMATE, PROTEIN FERMENTATION; TRANSFERASE
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.

1poi__assembly_1__model_1

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

Download this curve (.dat)

1poi__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1poi__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	40.92 Å
Rg (electron density)	40.36 Å
Total Rg	40.66 Å
Atom count	17990
Residues	2308
Excluded volume	320800 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1poi__assembly_1__model_1`	octameric （8）	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	GLUTACONATE COENZYME A-TRANSFERASE
Molecular weight formula_weight	35390.3 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,C
Atom count atom_count	9433

SKVMTLKDAIAKYVHSGDHIALGGFTTDRKPYAAVFEILRQGITDLTGLGGAAGGDWDMLIGNGRVKAYINCYTANSGVTNVSRRFRKWFEAGKLTMEDYSQDVIYMMWHAAALGLPFLPVTLMQGSGLTDEWGISKEVRKTLDKVPDDKFKYIDNPFKPGEKVVAVPVPQVDVAIIHAQQASPDGTVRIWGGKFQDVDIAEAAKYTIVTCEEIISDEEIRRDPTKNDIPGMCVDAVVLAPYGAHPSQCYGLYDYDNPFLKVYDKVSKTQEDFDAFCKEWVFDLKDHDEYLNKLGATRLINLKVVPGLGYHIDMTKE

Source Source

Source organism organism	Acidaminococcus fermentans
NCBI taxonomy ID ncbi_taxonomy_id	905
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	GLUTACONATE COENZYME A-TRANSFERASE
Molecular weight formula_weight	28566.5 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B,D

DYTNYTNKEMQAVTIAKQIKNGQVVTVGTGLPLIGASVAKRVYAPDCHIIVESGLMDCSPVEVPRSVGDLRFMAHCGCIWPNVRFVGFEINEYLHKANRLIAFIGGAQIDPYGNVNSTSIGDYHHPKTRFTGSGGANGIATYSNTIIMMQHEKRRFMNKIDYVTSPGWIDGPGGRERLGLPGDVGPQLVVTDKGILKFDEKTKRMYLAAYYPTSSPEDVLENTGFDLDVSKAVELEAPDPAVIKLIREEIDPGQAFIQVP

Source Source

Source organism organism	Acidaminococcus fermentans
NCBI taxonomy ID ncbi_taxonomy_id	905
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	COPPER (II) ION
Molecular weight formula_weight	63.5 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	438

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6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1poia_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.124 — NagB/RpiA/CoA transferase-like
Superfamily Superfamily superfamily	c.124.1 — NagB/RpiA/CoA transferase-like
Family Family family	c.124.1.2 — CoA transferase alpha subunit-like

Domain ID domain_id	d1poib_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.124 — NagB/RpiA/CoA transferase-like
Superfamily Superfamily superfamily	c.124.1 — NagB/RpiA/CoA transferase-like
Family Family family	c.124.1.3 — CoA transferase beta subunit-like

Domain ID domain_id	d1poic_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.124 — NagB/RpiA/CoA transferase-like
Superfamily Superfamily superfamily	c.124.1 — NagB/RpiA/CoA transferase-like
Family Family family	c.124.1.2 — CoA transferase alpha subunit-like

Domain ID domain_id	d1poid_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.124 — NagB/RpiA/CoA transferase-like
Superfamily Superfamily superfamily	c.124.1 — NagB/RpiA/CoA transferase-like
Family Family family	c.124.1.3 — CoA transferase beta subunit-like

CATH v4.4 (6 domains)

Domain ID domain_id	1poiA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1080 — Glutaconate Coenzyme A-transferase
Homologous superfamily homologous superfamily	10 — Glutaconate Coenzyme A-transferase

Domain ID domain_id	1poiA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	30 — Defensin A-like
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	1poiB00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1080 — Glutaconate Coenzyme A-transferase
Homologous superfamily homologous superfamily	10 — Glutaconate Coenzyme A-transferase

Domain ID domain_id	1poiC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1080 — Glutaconate Coenzyme A-transferase
Homologous superfamily homologous superfamily	10 — Glutaconate Coenzyme A-transferase

Domain ID domain_id	1poiC02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	30 — Defensin A-like
Homologous superfamily homologous superfamily	40 —

Domain ID domain_id	1poiD00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1080 — Glutaconate Coenzyme A-transferase
Homologous superfamily homologous superfamily	10 — Glutaconate Coenzyme A-transferase

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Unit-cell length a length_a	145.120 Å
Unit-cell length b length_b	152.270 Å
Unit-cell length c length_c	130.610 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	16

Space group space_group	C 2 2 21
Space-group number int_tables_number	20
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	7.000 Å
R factor r_factor	0.1900
R_work r_work	0.1900
R_free r_free	—

CRYSTAL STRUCTURE OF GLUTACONATE COENZYME A-TRANSFERASE FROM ACIDAMINOCOCCUS FERMENTANS TO 2.55 ANGSTOMS RESOLUTION

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

GLUTACONATE COENZYME A-TRANSFERASE

State in the Current Structure

Other States of the Same Protein in the Database

GLUTACONATE COENZYME A-TRANSFERASE

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

1poi__assembly_1__model_1

1poi__assembly_1__model_1 | I(q)

1poi__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)

CRYSTAL STRUCTURE OF GLUTACONATE COENZYME A-TRANSFERASE FROM ACIDAMINOCOCCUS FERMENTANS TO 2.55 ANGSTOMS RESOLUTION

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

GLUTACONATE COENZYME A-TRANSFERASE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

GLUTACONATE COENZYME A-TRANSFERASE

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

1poi__assembly_1__model_1

1poi__assembly_1__model_1 | I(q)

1poi__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 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

CATH v4.4 (6 domains)

7. Citations (1)