SAXSdb — 3a1c

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

Probable copper-exporting P-type ATPase A

Archaeoglobus fulgidus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER × 2 MAGNESIUM ION × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	COPA_ARCFU
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 12–287； UniProt 398–673 Author chain B； PDBConstruct 12–287； UniProt 398–673

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	3a1c
Deposition date deposition_date	2009-03-31
Structure title title	crystal structure of the P- and N-domains of CopA, a copper-transporting P-type ATPase, bound with AMPPCP-Mg
Keywords keywords	;P-type ATPase, ATP-binding, Cell membrane, Copper transport, Hydrolase, Ion transport, Magnesium, Membrane, Metal-binding, Nucleotide-binding, Phosphoprotein, Transmembrane, Transport ;; 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.

3a1c__assembly_1__model_1

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

Download this curve (.dat)

3a1c__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3a1c__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.74 Å
Rg (electron density)	24.81 Å
Total Rg	25.67 Å
Atom count	4100
Residues	540
Excluded volume	73370 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3a1c__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	Probable copper-exporting P-type ATPase A
Molecular weight formula_weight	30781.4 kDa
EC 编号 ec_number	3.6.3.-
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	4573

MGHHHHHHGSRKGAELGILIKNADALEVAEKVTAVIFDKTGTLTKGKPEVTDLVPLNGDERELLRLAAIAERRSEHPIAEAIVKKALEHGIELGEPEKVEVIAGEGVVADGILVGNKRLMEDFGVAVSNEVELALEKLEREAKTAVIVARNGRVEGIIAVSDTLKESAKPAVQELKRMGIKVGMITGDNWRSAEAISRELNLDLVIAEVLPHQKSEEVKKLQAKEVVAFVGDGINDAPALAQADLGIAVGSGSDVAVESGDIVLIRDDLRDVVAAIQLSRKTMSKIK

Source Source

Source organism organism	Archaeoglobus fulgidus
NCBI taxonomy ID ncbi_taxonomy_id	2234
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER
Molecular weight formula_weight	505.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 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	473

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	3a1cA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	3a1cA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1110 — Calcium-transporting ATPase, cytoplasmic domain N
Homologous superfamily homologous superfamily	10 — Calcium-transporting ATPase, cytoplasmic domain N

Domain ID domain_id	3a1cB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	1000 — HAD superfamily/HAD-like

Domain ID domain_id	3a1cB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	1110 — Calcium-transporting ATPase, cytoplasmic domain N
Homologous superfamily homologous superfamily	10 — Calcium-transporting ATPase, cytoplasmic domain N

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Unit-cell length a length_a	90.787 Å
Unit-cell length b length_b	90.787 Å
Unit-cell length c length_c	191.788 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	P 43 2 2
Space-group number int_tables_number	95
Crystal system crystal_system	—

Resolution resolution	1.850 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.1968
R_work r_work	0.1953
R_free r_free	0.2250

crystal structure of the P- and N-domains of CopA, a copper-transporting P-type ATPase, bound with AMPPCP-Mg

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

Probable copper-exporting P-type ATPase A

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

3a1c__assembly_1__model_1

3a1c__assembly_1__model_1 | I(q)

3a1c__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)

crystal structure of the P- and N-domains of CopA, a copper-transporting P-type ATPase, bound with AMPPCP-Mg

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

Probable copper-exporting P-type ATPase A

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

3a1c__assembly_1__model_1

3a1c__assembly_1__model_1 | I(q)

3a1c__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)