SAXSdb — 4a7h

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

ACTIN, ALPHA SKELETAL MUSCLE

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 10	TROPOMYOSIN 1-ALPHA CHAIN × 2 （P58772） MYOSIN IE HEAVY CHAIN × 3 （Q03479） ADENOSINE-5'-DIPHOSPHATE × 5 CALCIUM ION × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ACTS_RABIT
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–375； UniProt 3–377 Author chain D； PDBConstruct 1–375； UniProt 3–377 Author chain E； PDBConstruct 1–375； UniProt 3–377 Author chain F； PDBConstruct 1–375； UniProt 3–377 Author chain G； PDBConstruct 1–375； UniProt 3–377

TROPOMYOSIN 1-ALPHA CHAIN

ORYCTOLAGUS CUNICULUS

UniProt P58772

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 10	ACTIN, ALPHA SKELETAL MUSCLE × 5 （P68135） MYOSIN IE HEAVY CHAIN × 3 （Q03479） ADENOSINE-5'-DIPHOSPHATE × 5 CALCIUM ION × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TPM1_RABIT
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–136； UniProt 98–233 Author chain H； PDBConstruct 1–136； UniProt 98–233

MYOSIN IE HEAVY CHAIN

DICTYOSTELIUM DISCOIDEUM

UniProt Q03479

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 10	ACTIN, ALPHA SKELETAL MUSCLE × 5 （P68135） TROPOMYOSIN 1-ALPHA CHAIN × 2 （P58772） ADENOSINE-5'-DIPHOSPHATE × 5 CALCIUM ION × 5	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MYOE_DICDI
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain C； PDBConstruct 1–697； UniProt 1–697 Author chain I； PDBConstruct 1–697； UniProt 1–697 Author chain J； PDBConstruct 1–697； UniProt 1–697

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	4a7h
Deposition date deposition_date	2011-11-14
Structure title title	Structure of the Actin-Tropomyosin-Myosin Complex (rigor ATM 2)
Keywords keywords	;STRUCTURAL PROTEIN-HYDROLASE COMPLEX, STRUCTURAL PROTEIN, CYTOSKELETON, CONTRACTILE FILAMENT, MOTOR ACTIVITY, MYOSIN BINDING, ACTIN BINDING, ATP CATABOLIC PROCESS, RIGOR STATE ;; STRUCTURAL PROTEIN/HYDROLASE
Experimental Method method	ELECTRON MICROSCOPY

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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.

4a7h__assembly_1__model_1

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

Download this curve (.dat)

4a7h__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4a7h__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	61.76 Å
Rg (electron density)	61.78 Å
Total Rg	61.76 Å
Atom count	33500
Residues	4209
Excluded volume	596050 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4a7h__assembly_1__model_1`	decameric （10）	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 (5)

Entity 1 Entity 1 polymer

Description description	ACTIN, ALPHA SKELETAL MUSCLE
Molecular weight formula_weight	41875.6 kDa
Source method src_method	nat
Copy count entity_count	5

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D,E,F,G
Atom count atom_count	33500

DEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQEYDEAGPSIVHRKCF

Entity 2 Entity 2 polymer

Description description	TROPOMYOSIN 1-ALPHA CHAIN
Molecular weight formula_weight	15807.6 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

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

ELDRAQERLATALQKLEEAEKAADESERGMKVIESRAQKDEEKMEIQEIQLKEAKHIAEDADRKYEEVARKLVIIESDLERAEERAELSEGKCAELEEELKTVTNNLKSLEAQAEKYSQKEDKYEEEIKVLSDKLK

Source Source

Source organism organism	ORYCTOLAGUS CUNICULUS
Common name common_name	RABBIT
NCBI taxonomy ID ncbi_taxonomy_id	9986
Host organism host_organism	ESCHERICHIA COLI

Entity 3 Entity 3 polymer

Description description	MYOSIN IE HEAVY CHAIN
Molecular weight formula_weight	79207.3 kDa
EC 编号 ec_number	3.6.4.1
Mutation mutation	YES
Source method src_method	man
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,I,J

MIPKTKAEGVPDFVLLNQITENAFIENLTMRHKSDNIYTYIGDVVISTNPFKNLNIYKESDIKAYNGRYKYEMPPHMYALANDAYRSMRQSQENQCVIISGESGAGKTEASKKIMQFLTFVSSNQSPNGERISKMLLDSNPLLEAFGNAKTLRNDNSSRFGKYMEMQFNAVGSPIGGKITNYLLEKSRVVGRTQGERSFHIFYQMLKGLSQSKLDELGLTPNAPAYEYLKKSGCFDVSTIDDSGEFKIIVKAMETLGLKESDQNSIWRILAAILHIGNITFAEAAEQRTGTTTVKVSDTKSLAAAASCLKTDQQSLSIALCYRSISTGVGKRCEVISVPMDCNQAAYSRDALAKALYERLFNWLVSKINTIINCTTEKGPVIGILDIYGFEVFQNNSFEQLNINFCNEKLQQLFIELTLKSEQEEYVREGIEWKNIEYFNNKPICELIEKKPIGLISLLDEACLIAKSTDQTFLDSICKQFEKNPHLQSYVVSKDRSIGDTCFRLKHYAGDVTYDVRGFLDKNKDTLFGDLISSMQSSSDPLVQGLFPPTRPEDSKKRPETAGSQFRNAMNALITTLLACSPHYVRCIKSNDNKQAGVIDEDRVRHQVRYLGLLENVRVRRAGFAGRIEYTRFYNRYKMLCKKTWPSFNGTAKQATELILQQHNIDKEEIRMGKTKVFIRNPTTLFYFEEKRELEMP

Source Source

Source organism organism	DICTYOSTELIUM DISCOIDEUM
Common name common_name	SLIME MOLD
NCBI taxonomy ID ncbi_taxonomy_id	44689
Host organism host_organism	DICTYOSTELIUM DISCOIDEUM

Entity 4 Entity 4 non-polymer

Description description	ADENOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	427.2 kDa
Source method src_method	syn
Copy count entity_count	5

Entity 5 Entity 5 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 kDa
Source method src_method	syn
Copy count entity_count	5

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 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	1

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

Resolution resolution	7.800 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	7.80 Å
Resolution测定Method resolution_method	IHRSR
颗粒数 num_particles	9650

Structure of the Actin-Tropomyosin-Myosin Complex (rigor ATM 2)

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

ACTIN, ALPHA SKELETAL MUSCLE

State in the Current Structure

Other States of the Same Protein in the Database

TROPOMYOSIN 1-ALPHA CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

MYOSIN IE HEAVY CHAIN

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

4a7h__assembly_1__model_1

4a7h__assembly_1__model_1 | I(q)

4a7h__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

7. Citations (1)

Structure of the Actin-Tropomyosin-Myosin Complex (rigor ATM 2)

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

ACTIN, ALPHA SKELETAL MUSCLE

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

TROPOMYOSIN 1-ALPHA CHAIN

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

MYOSIN IE HEAVY CHAIN

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

4a7h__assembly_1__model_1

4a7h__assembly_1__model_1 | I(q)

4a7h__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

7. Citations (1)