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1rdw

Actin Crystal Dynamics: Structural Implications for F-actin Nucleation, Polymerization and Branching Mediated by the Anti-parallel Dimer

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Actin, alpha skeletal muscle

Oryctolagus cuniculus

UniProt P68135

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 MAGNESIUM ION × 4 ADENOSINE-5'-TRIPHOSPHATE × 2 LATRUNCULIN A × 2 water × 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 1
Chains and sequence ranges Author chain X； 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_id1rdw
Deposition date deposition_date2003-11-06
Structure title titleActin Crystal Dynamics: Structural Implications for F-actin Nucleation, Polymerization and Branching Mediated by the Anti-parallel Dimer
Keywords keywordsAnti-parallel dimer, Polymerization, Nucleation, Filament, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodX-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.

1rdw__assembly_1__model_1

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

Download this curve (.dat)

1rdw__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.

1rdw__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）34.23 Å
Rg (electron density)34.15 Å
Total Rg34.41 Å
Atom count5782
Residues722
Excluded volume102930 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1rdw__assembly_1__model_1 dimeric （2） 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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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1rdwx1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.1 — Actin-like ATPase domain
Family Family familyc.55.1.1 — Actin/HSP70
Domain ID domain_idd1rdwx2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.1 — Actin-like ATPase domain
Family Family familyc.55.1.1 — Actin/HSP70

CATH v4.4 (4 domains)

Domain ID domain_id1rdwX01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id1rdwX02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology36 — Actin; Chain A, domain 2
Homologous superfamily homologous superfamily70 — Actin; Chain A, domain 2
Domain ID domain_id1rdwX03
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily40 — ATPase, nucleotide binding domain
Domain ID domain_id1rdwX04
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology640 — Actin; Chain A, domain 4
Homologous superfamily homologous superfamily10 — ATPase, substrate binding domain, subdomain 4
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7. Citations (1)