1avs

X-RAY CRYSTALLOGRAPHIC STUDY OF CALCIUM-SATURATED N-TERMINAL DOMAIN OF TROPONIN C

Method: X-RAY DIFFRACTION Dmax: 65.2 Å Quality: GOOD

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

TROPONIN C

Gallus gallus

UniProt P02588

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–90 Fragment:N-TERMINAL DOMAIN, RESIDUES 1 - 90 CA CALCIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;72 % AMMONIUM SULFATE 100 MM TRIS 2 % MPD, 5 MM CALCIUM CHLORIDE PH 7.5 Resolution 1.75 Å R-free 0.250
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–90 Fragment:N-TERMINAL DOMAIN, RESIDUES 1 - 90 CA CALCIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;72 % AMMONIUM SULFATE 100 MM TRIS 2 % MPD, 5 MM CALCIUM CHLORIDE PH 7.5 Resolution 1.75 Å R-free 0.250

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.

22 other PDB entries and 24 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TNNC2_CHICK
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–90; UniProt 1–90 Author chain B; PDBConstruct 1–90; UniProt 1–90

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 1avs

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1avs
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1avs
Deposition date deposition_date1997-09-19
Structure title titleX-RAY CRYSTALLOGRAPHIC STUDY OF CALCIUM-SATURATED N-TERMINAL DOMAIN OF TROPONIN C
Keywords keywordsMUSCLE CONTRACTION, CALCIUM-ACTIVATED, TROPONIN, E-F HAND CALCIUM-BINDING PROTEIN; MUSCLE CONTRACTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier21.03
Radius of gyration Rg (electron density) rg_electron20.20
Forward intensity I(0) i06599810.00
Molecular weight molecular_weight18285.0 kDa
Excluded volume excluded_volume22551 ų
Envelope volume envelope_volume28719 ų
Hydration-shell volume shell_volume13287 ų
Envelope diameter envelope_diameter65.3
Shell Rg shell_rg24.01
Envelope Rg envelope_rg19.93
Shape Rg shape_rg20.18
Total Rg total_rg20.84
Total atoms total_atoms1267
Residues n_residues163
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 dmax65.2
Rg (real space) rg_real21.16
Rg uncertainty (real space) rg_real_error0.48
I(0) (real space) i0_real6.6000e+06
I(0) uncertainty (real space) i0_real_error9.0450e+04
Rg (reciprocal space) rg_reciprocal21.14
I(0) (reciprocal space) i0_reciprocal6600000.0000
Solution quality estimate total_estimate0.8738
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary18.9
Skewness Skewness skewness0.355
Kurtosis Kurtosis kurtosis-0.733
Angular range angular_range— – 0.3800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha702900.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.845; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.831; Smooth: 0.988

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1avsa_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd1avsb_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like

CATH v4.4 (2 domains)

Domain ID domain_id1avsA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id1avsB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand

8. Citations (1)

9. Files and Curves (10)