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5h53

The structure of rabbit skeletal muscle actomyosin rigor complex at 5.2 angstrom.

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

Skeletal muscle myosin heavy chain MyHC-EO/IIL

OrganismNot specified

UniProt Q9GJP9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Myosin regulatory light chain 2, skeletal muscle isoform type 1 × 1 （P24732） Myosin light chain 1/3, skeletal muscle isoform × 1 （P02602） Actin, alpha skeletal muscle × 2 （P68135） ADENOSINE-5'-DIPHOSPHATE × 2 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
5h53

1 assemblies

View Construct and Data Evidence
UniProt name Q9GJP9_RABIT
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–845； UniProt 1–845

Myosin regulatory light chain 2, skeletal muscle isoform type 1

OrganismNot specified

UniProt P24732

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Skeletal muscle myosin heavy chain MyHC-EO/IIL × 1 （Q9GJP9） Myosin light chain 1/3, skeletal muscle isoform × 1 （P02602） Actin, alpha skeletal muscle × 2 （P68135） ADENOSINE-5'-DIPHOSPHATE × 2 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
5h53

1 assemblies

View Construct and Data Evidence
UniProt name MLRT_RABIT
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–146； UniProt 25–170

Myosin light chain 1/3, skeletal muscle isoform

OrganismNot specified

UniProt P02602

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Skeletal muscle myosin heavy chain MyHC-EO/IIL × 1 （Q9GJP9） Myosin regulatory light chain 2, skeletal muscle isoform type 1 × 1 （P24732） Actin, alpha skeletal muscle × 2 （P68135） ADENOSINE-5'-DIPHOSPHATE × 2 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
5h53 6ysy

2 assemblies

View Construct and Data Evidence
UniProt name MYL1_RABIT
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–152； UniProt 41–192

Actin, alpha skeletal muscle

OrganismNot specified

UniProt P68135

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Skeletal muscle myosin heavy chain MyHC-EO/IIL × 1 （Q9GJP9） Myosin regulatory light chain 2, skeletal muscle isoform type 1 × 1 （P24732） Myosin light chain 1/3, skeletal muscle isoform × 1 （P02602） ADENOSINE-5'-DIPHOSPHATE × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1ijj 1ijj 1j6z 1nwk 1qz5 1s22 1wua 2asm 2aso 2asp 2fxu 2gwj

40 assemblies; showing the first 12

Homodimer
1lcu 1rdw 1rfq 1yxq 2a5x 2gwk 2hmp 2q1n 2q1n 2q31 2q31 2q36

14 assemblies; showing the first 12

Homotetramer
8dmx 8ru0 9fjo

3 assemblies

Other homooligomers
2y83 3b5u 3g37 3j8i 3j8j 3j8k 3mfp 4a7n 5mva 5mvy 5onv 5ooc

42 assemblies; showing the first 12

Heteromeric or nucleic-acid complex
1eqy 1esv 1kxp 1lot 1m8q 1ma9 1mvw 1o18 1o19 1o1a 1o1b 1o1c

255 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name ACTS_RABIT
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D； PDBConstruct 1–375； UniProt 3–377 Author chain E； PDBConstruct 1–375； UniProt 3–377

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_id5h53
Deposition date deposition_date2016-11-04
Structure title titleThe structure of rabbit skeletal muscle actomyosin rigor complex at 5.2 angstrom.
Keywords keywordsActin, Myosin, Muscle, rigor complex, 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.

5h53__assembly_1__model_1

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

Download this curve (.dat)

5h53__assembly_1__model_1 | I(q)

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

5h53__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）56.58 Å
Rg (electron density)57.74 Å
Total Rg57.64 Å
Atom count15077
Residues1892
Excluded volume268660 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5h53__assembly_1__model_1 pentameric （5） 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)