6twb

Crystal Structure of the Catalytic Domain of Coagulation Factor XIa in Complex with Double Bridged Peptide F19

Method: X-RAY DIFFRACTION Dmax: 56.8 Å Quality: GOOD

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

Coagulation factor XI

Homo sapiens

UniProt P03951

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 321–571 Chain H; UniProt 321–571 Not recorded Double Bridged Peptide F19 × 1 NH4 AMMONIUM ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;291 K;200 mM (NH4)2SO4, 25% PEG4000, and 100 mM NaOAc, pH 4.6 Resolution 2.91 Å R-free 0.241

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.

113 other PDB entries and 120 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FA11_HUMAN
Isoform P03951-2
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 6–256; UniProt 321–571 Author chain H; PDBConstruct 6–256; UniProt 321–571

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 6twb

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6twb
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6twb
Deposition date deposition_date2020-01-13
Structure title titleCrystal Structure of the Catalytic Domain of Coagulation Factor XIa in Complex with Double Bridged Peptide F19
Keywords keywordsProtease, Coagulation factors, Inhibitor, Double bridged peptide, Phage display, BLOOD CLOTTING; BLOOD CLOTTING
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.24
Radius of gyration Rg (electron density) rg_electron17.03
Forward intensity I(0) i015258100.00
Molecular weight molecular_weight28914.0 kDa
Excluded volume excluded_volume36024 ų
Envelope volume envelope_volume40803 ų
Hydration-shell volume shell_volume19290 ų
Envelope diameter envelope_diameter58.8
Shell Rg shell_rg24.04
Envelope Rg envelope_rg17.44
Shape Rg shape_rg17.01
Total Rg total_rg18.13
Total atoms total_atoms2038
Residues n_residues245
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 dmax56.8
Rg (real space) rg_real18.11
Rg uncertainty (real space) rg_real_error0.23
I(0) (real space) i0_real1.5260e+07
I(0) uncertainty (real space) i0_real_error1.9180e+05
Rg (reciprocal space) rg_reciprocal18.13
I(0) (reciprocal space) i0_reciprocal15260000.0000
Solution quality estimate total_estimate0.8179
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.8
Skewness Skewness skewness0.118
Kurtosis Kurtosis kurtosis-0.428
Angular range angular_range— – 0.4350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6192000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.883; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.979; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6twba1
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.2 — Eukaryotic proteases
Domain ID domain_idd6twba2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id6twbA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (1)

9. Files and Curves (10)