2z5i

Crystal structure of the head-to-tail junction of tropomyosin

Method: X-RAY DIFFRACTION Dmax: 117.0 Å Quality: GOOD

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

General control protein GCN4 and Tropomyosin alpha-1 chain

Oryctolagus cuniculus

UniProt P03069

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 259–278 Chain B; UniProt 259–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
2 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 259–278 Chain D; UniProt 259–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
3 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 259–278 Chain F; UniProt 259–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
4 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 259–278 Chain H; UniProt 259–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
5 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain I; UniProt 267–278 Chain J; UniProt 267–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
6 Insufficient information Homooligomer Protein × 10 PDB declaration: decameric(10) Consistent with protein copy count Chain A; UniProt 259–278 Chain B; UniProt 259–278 Chain C; UniProt 259–278 Chain D; UniProt 259–278 Chain E; UniProt 259–278 Chain F; UniProt 259–278 Chain G; UniProt 259–278 Chain H; UniProt 259–278 Chain I; UniProt 267–278 Chain J; UniProt 267–278 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246

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.

162 other PDB entries and 195 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name GCN4_YEAST
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 2–21; UniProt 259–278 Author chain B; PDBConstruct 2–21; UniProt 259–278 Author chain C; PDBConstruct 2–21; UniProt 259–278 Author chain D; PDBConstruct 2–21; UniProt 259–278 Author chain E; PDBConstruct 2–21; UniProt 259–278 Author chain F; PDBConstruct 2–21; UniProt 259–278 Author chain G; PDBConstruct 2–21; UniProt 259–278 Author chain H; PDBConstruct 2–21; UniProt 259–278 Author chain I; PDBConstruct 29–40; UniProt 267–278 Author chain J; PDBConstruct 29–40; UniProt 267–278

General control protein GCN4 and Tropomyosin alpha-1 chain

Oryctolagus cuniculus

UniProt P58772

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 254–284 Chain B; UniProt 254–284 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
2 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 254–284 Chain D; UniProt 254–284 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
3 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 254–284 Chain F; UniProt 254–284 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
4 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain G; UniProt 254–284 Chain H; UniProt 254–284 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
5 Insufficient information Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain I; UniProt 1–24 Chain J; UniProt 1–24 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246
6 Insufficient information Homooligomer Protein × 10 PDB declaration: decameric(10) Consistent with protein copy count Chain A; UniProt 254–284 Chain B; UniProt 254–284 Chain C; UniProt 254–284 Chain D; UniProt 254–284 Chain E; UniProt 254–284 Chain F; UniProt 254–284 Chain G; UniProt 254–284 Chain H; UniProt 254–284 Chain I; UniProt 1–24 Chain J; UniProt 1–24 Fragment:C terminal domain of GCN4 and Tropomyosin alpha-1 chain Fragment:N terminal domain of Tropomyosin alpha-1 chain and C terminal domain of GCN4 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.10 Å R-free 0.246

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.

10 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TPM1_RABIT
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 22–52; UniProt 254–284 Author chain B; PDBConstruct 22–52; UniProt 254–284 Author chain C; PDBConstruct 22–52; UniProt 254–284 Author chain D; PDBConstruct 22–52; UniProt 254–284 Author chain E; PDBConstruct 22–52; UniProt 254–284 Author chain F; PDBConstruct 22–52; UniProt 254–284 Author chain G; PDBConstruct 22–52; UniProt 254–284 Author chain H; PDBConstruct 22–52; UniProt 254–284 Author chain I; PDBConstruct 5–28; UniProt 1–24 Author chain J; PDBConstruct 5–28; UniProt 1–24

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 2z5i

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2z5i
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2z5i
Deposition date deposition_date2007-07-12
Structure title titleCrystal structure of the head-to-tail junction of tropomyosin
Keywords keywordsactin, troponin, tropomyosin, cytoskeleton, cardiomyopathy, CONTRACTILE PROTEIN; CONTRACTILE PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.41
Radius of gyration Rg (electron density) rg_electron35.45
Forward intensity I(0) i047618800.00
Molecular weight molecular_weight54501.0 kDa
Excluded volume excluded_volume68477 ų
Envelope volume envelope_volume107230 ų
Hydration-shell volume shell_volume27701 ų
Envelope diameter envelope_diameter121.0
Shell Rg shell_rg37.81
Envelope Rg envelope_rg34.74
Shape Rg shape_rg35.46
Total Rg total_rg35.61
Total atoms total_atoms3826
Residues n_residues466
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 dmax117.0
Rg (real space) rg_real35.47
Rg uncertainty (real space) rg_real_error1.43
I(0) (real space) i0_real4.7620e+07
I(0) uncertainty (real space) i0_real_error9.3450e+05
Rg (reciprocal space) rg_reciprocal35.44
I(0) (reciprocal space) i0_reciprocal47620000.0000
Solution quality estimate total_estimate0.8986
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary39.0
Skewness Skewness skewness0.263
Kurtosis Kurtosis kurtosis-0.497
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2113000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.929; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.912

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

CATH v4.4 (8 domains)

Domain ID domain_id2z5iA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iB00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iC00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iD00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iE00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iF00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iG00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170
Domain ID domain_id2z5iH00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170

8. Citations (1)

9. Files and Curves (10)