SAXSdb — 1nlv

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

Actin

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Gelsolin × 1 （P06396） CALCIUM ION × 2 SULFATE ION × 2 ADENOSINE-5'-TRIPHOSPHATE × 1 SULFUR DIOXIDE × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Gelsolin × 2 （P06396） CALCIUM ION × 4 SULFATE ION × 4 ADENOSINE-5'-TRIPHOSPHATE × 2 SULFUR DIOXIDE × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ACT1_DICDI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–375； UniProt 1–375

Gelsolin

Homo sapiens

UniProt P06396

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Actin × 1 （P02577） CALCIUM ION × 2 SULFATE ION × 2 ADENOSINE-5'-TRIPHOSPHATE × 1 SULFUR DIOXIDE × 1 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Actin × 2 （P02577） CALCIUM ION × 4 SULFATE ION × 4 ADENOSINE-5'-TRIPHOSPHATE × 2 SULFUR DIOXIDE × 2 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GELS_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain G； PDBConstruct 1–125； UniProt 52–176

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	1nlv
Deposition date deposition_date	2003-01-07
Structure title title	Crystal Structure Of Dictyostelium Discoideum Actin Complexed With Ca ATP And Human Gelsolin Segment 1
Keywords keywords	actin, gelsolin, cytoskeleton, cell motility, STRUCTURAL PROTEIN; STRUCTURAL 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.

1nlv__assembly_1__model_1

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

Download this curve (.dat)

1nlv__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1nlv__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.87 Å
Rg (electron density)	24.01 Å
Total Rg	24.72 Å
Atom count	3815
Residues	487
Excluded volume	67706 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1nlv__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1nlv__assembly_2__model_1`	tetrameric （4）	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 (7)

Entity 1 Entity 1 polymer

Description description	Actin
Molecular weight formula_weight	41647.4 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	4146

DGEDVQALVIDNGSGMCKAGFAGDDAPRAVFPSIVGRPRHTGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIVTNWDDMEKIWHHTFYNELRVAPEEHPVLLTEAPLNPKANREKMTQIMFETFNTPAMYVAIQAVLSLYASGRTTGIVMDSGDGVSHTVPIYEGYALPHAILRLDLAGRDLTDYMMKILTERGYSFTTTAEREIVRDIKEKLAYVALDFEQEMATAASSSALEKSYELPDGQVITIGNERFRCPEALFQPSFLGMESAGIHETTYNSIMKCDVDIRKDLYGNVVLSGGTTMFPGIADRMNKELTALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWISKEEYDESGPSIVHRKCF

Entity 2 Entity 2 polymer

Description description	Gelsolin
Molecular weight formula_weight	14071.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	G

MVVEHPEFLKAGKEPGLQIWRVEKFDLVPVPTNLYGDFFTGDAYVILKTVQLRNGNLQYDLHYWLGNECSQDESGAAAIFTVQLDDYLNGRAVQHREVQGFESATFLGYFKSGLKYKKGGVASGF

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 3 Entity 3 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	ADENOSINE-5'-TRIPHOSPHATE
Molecular weight formula_weight	507.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	SULFUR DIOXIDE
Molecular weight formula_weight	64.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	331

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6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d1nlva1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.1 — Actin-like ATPase domain
Family Family family	c.55.1.1 — Actin/HSP70

Domain ID domain_id	d1nlva2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamily	c.55.1 — Actin-like ATPase domain
Family Family family	c.55.1.1 — Actin/HSP70

Domain ID domain_id	d1nlvg_
Class class	d — Alpha and beta proteins (a+b)
Fold Fold fold	d.109 — Gelsolin-like
Superfamily Superfamily superfamily	d.109.1 — Actin depolymerizing proteins
Family Family family	d.109.1.1 — Gelsolin-like

CATH v4.4 (4 domains)

Domain ID domain_id	1nlvA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	1nlvA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily	40 — ATPase, nucleotide binding domain

Domain ID domain_id	1nlvA03
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily	10 — ATPase, substrate binding domain, subdomain 4

Domain ID domain_id	1nlvG00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	20 — Severin
Homologous superfamily homologous superfamily	10 — Severin

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Unit-cell length a length_a	178.446 Å
Unit-cell length b length_b	69.089 Å
Unit-cell length c length_c	56.570 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	104.50 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

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

Resolution resolution	1.800 Å
Low-resolution limit resolution_low	23.000 Å
R factor r_factor	—
R_work r_work	0.2097
R_free r_free	0.2584

Crystal Structure Of Dictyostelium Discoideum Actin Complexed With Ca ATP And Human Gelsolin Segment 1

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

Actin

State in the Current Structure

Other States of the Same Protein in the Database

Gelsolin

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

1nlv__assembly_1__model_1

1nlv__assembly_1__model_1 | I(q)

1nlv__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

CATH v4.4 (4 domains)

7. Citations (1)

Crystal Structure Of Dictyostelium Discoideum Actin Complexed With Ca ATP And Human Gelsolin Segment 1

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

Actin

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Gelsolin

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

1nlv__assembly_1__model_1

1nlv__assembly_1__model_1 | I(q)

1nlv__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 (7)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

CATH v4.4 (4 domains)

7. Citations (1)