SAXSdb — 4a46

▼

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

SSR2857 PROTEIN

SYNECHOCYSTIS SP. PCC 6803

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	ZINC ION × 2 SODIUM ION × 2 CHLORIDE ION × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	P73213_SYNY3
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–63； UniProt 2–64 Author chain B； PDBConstruct 1–63； UniProt 2–64 Author chain C； PDBConstruct 1–63； UniProt 2–64 Author chain D； PDBConstruct 1–63； UniProt 2–64

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	4a46
Deposition date deposition_date	2011-10-07
Structure title title	Crosstalk between Cu(I) and Zn(II) homeostasis
Keywords keywords	TRANSPORT PROTEIN, COPPER HOMEOSTASIS, ZINC HOMEOSTASIS, METAL-TRANSPORTING ATPASES; TRANSPORT PROTEIN
Experimental Method method	X-RAY DIFFRACTION

▼

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.

4a46__assembly_1__model_1

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

Download this curve (.dat)

4a46__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4a46__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.54 Å
Rg (electron density)	18.72 Å
Total Rg	19.57 Å
Atom count	1790
Residues	252
Excluded volume	31939 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4a46__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	SSR2857 PROTEIN
Molecular weight formula_weight	6559.3 kDa
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	1937

TIQLTVPTIACEACAEAVTKAVQNEDAQATVQVDLTSKKVTITSALGEEQLRTAIASAGHEVE

Source Source

Source organism organism	SYNECHOCYSTIS SP. PCC 6803
NCBI taxonomy ID ncbi_taxonomy_id	1148
Host organism host_organism	ESCHERICHIA COLI

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SODIUM ION
Molecular weight formula_weight	23.0 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	CHLORIDE ION
Molecular weight formula_weight	35.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	127

▼

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d4a46a_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.17 — HMA, heavy metal-associated domain
Family Family family	d.58.17.1 — HMA, heavy metal-associated domain

Domain ID domain_id	d4a46b_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.17 — HMA, heavy metal-associated domain
Family Family family	d.58.17.1 — HMA, heavy metal-associated domain

Domain ID domain_id	d4a46c_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.17 — HMA, heavy metal-associated domain
Family Family family	d.58.17.1 — HMA, heavy metal-associated domain

Domain ID domain_id	d4a46d_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.58 — Ferredoxin-like
Superfamily Superfamily superfamily	d.58.17 — HMA, heavy metal-associated domain
Family Family family	d.58.17.1 — HMA, heavy metal-associated domain

CATH v4.4 (4 domains)

Domain ID domain_id	4a46A00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	4a46B00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	4a46C00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

Domain ID domain_id	4a46D00
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily	100 —

▶

Unit-cell length a length_a	30.710 Å
Unit-cell length b length_b	41.990 Å
Unit-cell length c length_c	45.240 Å
Unit-cell angle α angle_alpha	83.34 °
Unit-cell angle β angle_beta	89.52 °
Unit-cell angle γ angle_gamma	75.28 °
Molecules per unit cell Z z_pdb	4

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

Resolution resolution	1.850 Å
Low-resolution limit resolution_low	44.920 Å
R factor r_factor	0.1942
R_work r_work	0.1916
R_free r_free	0.2428

Crosstalk between Cu(I) and Zn(II) homeostasis

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

SSR2857 PROTEIN

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

4a46__assembly_1__model_1

4a46__assembly_1__model_1 | I(q)

4a46__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 (5)

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 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crosstalk between Cu(I) and Zn(II) homeostasis

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

SSR2857 PROTEIN

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

4a46__assembly_1__model_1

4a46__assembly_1__model_1 | I(q)

4a46__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 (5)

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 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

CATH v4.4 (4 domains)

7. Citations (1)