SAXSdb — 1c2o

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

ACETYLCHOLINESTERASE

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	No other associated polymer	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ACES_MOUSE
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–539； UniProt 36–574 Author chain B； PDBConstruct 1–539； UniProt 36–574 Author chain C； PDBConstruct 1–539； UniProt 36–574 Author chain D； PDBConstruct 1–539； UniProt 36–574

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	1c2o
Deposition date deposition_date	1999-07-26
Structure title title	ELECTROPHORUS ELECTRICUS ACETYLCHOLINESTERASE
Keywords keywords	SERINE HYDROLASE, ALPHA/BETA HYDROLASE, TETRAMER, HYDROLASE; HYDROLASE
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.

1c2o__assembly_1__model_1

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

Download this curve (.dat)

1c2o__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1c2o__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	38.07 Å
Rg (electron density)	38.02 Å
Total Rg	38.38 Å
Atom count	8344
Residues	1078
Excluded volume	148160 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1c2o__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1c2o__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 (1)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d1c2oa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.1 — Acetylcholinesterase-like

Domain ID domain_id	d1c2ob_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.1 — Acetylcholinesterase-like

Domain ID domain_id	d1c2oc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.1 — Acetylcholinesterase-like

Domain ID domain_id	d1c2od_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.69 — alpha/beta-Hydrolases
Superfamily Superfamily superfamily	c.69.1 — alpha/beta-Hydrolases
Family Family family	c.69.1.1 — Acetylcholinesterase-like

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Unit-cell length a length_a	211.160 Å
Unit-cell length b length_b	129.750 Å
Unit-cell length c length_c	195.420 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	103.20 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	4.200 Å
Low-resolution limit resolution_low	12.000 Å
R factor r_factor	—
R_work r_work	0.3750
R_free r_free	0.3850

Description description	ACETYLCHOLINESTERASE
Molecular weight formula_weight	59292.0 kDa
EC 编号 ec_number	3.1.1.7
Source method src_method	nat
Copy count entity_count	4

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	16688

ELECTROPHORUS ELECTRICUS ACETYLCHOLINESTERASE

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

ACETYLCHOLINESTERASE

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

1c2o__assembly_1__model_1

1c2o__assembly_1__model_1 | I(q)

1c2o__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)

ELECTROPHORUS ELECTRICUS ACETYLCHOLINESTERASE

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

ACETYLCHOLINESTERASE

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

1c2o__assembly_1__model_1

1c2o__assembly_1__model_1 | I(q)

1c2o__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 (1)

Entity 1 Entity 1 polymer

Polymer Polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (4 domains)

7. Citations (1)