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7nep

Homology model of the in situ actomyosin complex from the A-band of mouse psoas muscle sarcomere in the rigor state

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Actin, alpha skeletal muscle

OrganismNot specified

UniProt P68134

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 21 Tropomyosin alpha-1 chain × 4 （P58771） Myosin-4 × 2 （Q5SX39） Myosin light chain 1/3, skeletal muscle isoform × 2 （P05977） Myosin regulatory light chain 2, skeletal muscle isoform × 2 （P97457） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer
6kll 6kln

2 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
4b1u 7nep 7qin

3 assemblies

View Construct and Data Evidence
UniProt name ACTS_MOUSE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–374； UniProt 4–377 Author chain B； PDBConstruct 1–374； UniProt 4–377 Author chain C； PDBConstruct 1–374； UniProt 4–377 Author chain D； PDBConstruct 1–374； UniProt 4–377 Author chain E； PDBConstruct 1–374； UniProt 4–377 Author chain F； PDBConstruct 1–374； UniProt 4–377 Author chain G； PDBConstruct 1–374； UniProt 4–377 Author chain H； PDBConstruct 1–374； UniProt 4–377 Author chain I； PDBConstruct 1–374； UniProt 4–377 Author chain J； PDBConstruct 1–374； UniProt 4–377 Author chain K； PDBConstruct 1–374； UniProt 4–377

Tropomyosin alpha-1 chain

OrganismNot specified

UniProt P58771

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 21 Actin, alpha skeletal muscle × 11 （P68134） Myosin-4 × 2 （Q5SX39） Myosin light chain 1/3, skeletal muscle isoform × 2 （P05977） Myosin regulatory light chain 2, skeletal muscle isoform × 2 （P97457） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
7nep 8q4g 8zbk 8zbn 9e2e 9mo4 9mo5 9mo6 9mo7 9mo8 9mo9 9moa

25 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name TPM1_MOUSE
Isoform —
PDB entities 2
Chains and sequence ranges Author chain P； PDBConstruct 1–251； UniProt 11–261 Author chain Q； PDBConstruct 1–251； UniProt 11–261 Author chain T； PDBConstruct 1–251； UniProt 11–261 Author chain U； PDBConstruct 1–251； UniProt 11–261

Myosin-4

OrganismNot specified

UniProt Q5SX39

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 21 Actin, alpha skeletal muscle × 11 （P68134） Tropomyosin alpha-1 chain × 4 （P58771） Myosin light chain 1/3, skeletal muscle isoform × 2 （P05977） Myosin regulatory light chain 2, skeletal muscle isoform × 2 （P97457） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
7qio 7qio

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
7nep 7qin

2 assemblies

View Construct and Data Evidence
UniProt name MYH4_MOUSE
Isoform —
PDB entities 3
Chains and sequence ranges Author chain L； PDBConstruct 1–813； UniProt 32–844 Author chain M； PDBConstruct 1–813； UniProt 32–844

Myosin light chain 1/3, skeletal muscle isoform

OrganismNot specified

UniProt P05977

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 21 Actin, alpha skeletal muscle × 11 （P68134） Tropomyosin alpha-1 chain × 4 （P58771） Myosin-4 × 2 （Q5SX39） Myosin regulatory light chain 2, skeletal muscle isoform × 2 （P97457） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
7qio 7qio

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
7nep 8efd 8efe 9gz1 9yop 9yp4 9yp9 9yr7 9yrg 9yrh

10 assemblies

View Construct and Data Evidence
UniProt name MYL1_MOUSE
Isoform —
PDB entities 4
Chains and sequence ranges Author chain N； PDBConstruct 1–148； UniProt 40–187 Author chain O； PDBConstruct 1–148； UniProt 40–187

Myosin regulatory light chain 2, skeletal muscle isoform

OrganismNot specified

UniProt P97457

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 21 Actin, alpha skeletal muscle × 11 （P68134） Tropomyosin alpha-1 chain × 4 （P58771） Myosin-4 × 2 （Q5SX39） Myosin light chain 1/3, skeletal muscle isoform × 2 （P05977） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
7qio 7qio

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
7nep 9gz1 9yop 9yp4 9yp9 9yr7 9yrg 9yrh

8 assemblies

View Construct and Data Evidence
UniProt name MLRS_MOUSE
Isoform —
PDB entities 5
Chains and sequence ranges Author chain R； PDBConstruct 1–144； UniProt 21–164 Author chain S； PDBConstruct 1–144； UniProt 21–164

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_id7nep
Deposition date deposition_date2021-02-04
Structure title titleHomology model of the in situ actomyosin complex from the A-band of mouse psoas muscle sarcomere in the rigor state
Keywords keywordsMuscle proteins, force generation, sarcomere, cytoskeleton, MOTOR PROTEIN; MOTOR PROTEIN
Experimental Method methodELECTRON 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.

7nep__assembly_1__model_1

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

Download this curve (.dat)

7nep__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7nep__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）91.87 Å
Rg (electron density)92.95 Å
Total Rg92.80 Å
Atom count57453
Residues7276
Excluded volume1023200 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7nep__assembly_1__model_1 21-meric （21） 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)

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7. Citations (1)