2q1n

Actin Dimer Cross-linked Between Residues 41 and 374

Method: X-RAY DIFFRACTION Dmax: 98.8 Å Quality: GOOD

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

Actin, alpha skeletal muscle

OrganismNot specified

UniProt P68135

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 3–377 Not recorded CA CALCIUM ION × 4 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 LAR LATRUNCULIN A × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;298 K;30% MPD, 0.1M sodium acetate, 0.02 M calcium chloride, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.70 Å R-free 0.277
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 3–377 Not recorded CA CALCIUM ION × 4 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 LAR LATRUNCULIN A × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;298 K;30% MPD, 0.1M sodium acetate, 0.02 M calcium chloride, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 2.70 Å R-free 0.277

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

293 other PDB entries and 352 assemblies. Open the comparison page and filter oligomeric states

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 B; 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.

SAXS scattering curve SAXS Profile

SAXS profile for 2q1n

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2q1n
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2q1n
Deposition date deposition_date2007-05-25
Structure title titleActin Dimer Cross-linked Between Residues 41 and 374
Keywords keywordscross-linked dimer, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier30.17
Radius of gyration Rg (electron density) rg_electron29.57
Forward intensity I(0) i0100825000.00
Molecular weight molecular_weight78915.0 kDa
Excluded volume excluded_volume98553 ų
Envelope volume envelope_volume123960 ų
Hydration-shell volume shell_volume35309 ų
Envelope diameter envelope_diameter107.7
Shell Rg shell_rg36.47
Envelope Rg envelope_rg29.36
Shape Rg shape_rg29.59
Total Rg total_rg30.13
Total atoms total_atoms5525
Residues n_residues689
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax98.8
Rg (real space) rg_real30.18
Rg uncertainty (real space) rg_real_error0.82
I(0) (real space) i0_real1.0080e+08
I(0) uncertainty (real space) i0_real_error1.5900e+06
Rg (reciprocal space) rg_reciprocal30.18
I(0) (reciprocal space) i0_reciprocal100800000.0000
Solution quality estimate total_estimate0.8185
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary37.3
Skewness Skewness skewness0.322
Kurtosis Kurtosis kurtosis-0.384
Angular range angular_range— – 0.2650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha39410000.0000
Real-space data points n_real_points54
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.886; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.981; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2q1na1
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_idd2q1na2
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_idd2q1nb1
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_idd2q1nb2
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 (6 domains)

Domain ID domain_id2q1nA01
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_id2q1nA02
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_id2q1nA03
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
Domain ID domain_id2q1nB01
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_id2q1nB02
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_id2q1nB03
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

8. Citations (1)

9. Files and Curves (10)