1xkb

FACTOR XA COMPLEXED WITH A SYNTHETIC INHIBITOR FX-2212A,(2S)-(3'-AMIDINO-3-BIPHENYLYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID

Method: X-RAY DIFFRACTION Dmax: 116.0 Å Quality: GOOD

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

BLOOD COAGULATION FACTOR XA

OrganismNot specified

UniProt P00742

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 85–179 Chain C; UniProt 235–469 Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN Non-standard monomer:Yes (specific site not provided by mmCIF) Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN CA CALCIUM ION × 2 4PP (2S)-(3'-AMIDINO-3-BIPHENYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6;pH 6.0 Resolution 2.40 Å R-free 0.294
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 85–179 Chain D; UniProt 235–469 Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN Non-standard monomer:Yes (specific site not provided by mmCIF) Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN CA CALCIUM ION × 1 4PP (2S)-(3'-AMIDINO-3-BIPHENYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6;pH 6.0 Resolution 2.40 Å R-free 0.294
3 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 85–179 Chain B; UniProt 85–179 Chain C; UniProt 235–469 Chain D; UniProt 235–469 Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN Non-standard monomer:Yes (specific site not provided by mmCIF) Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN CA CALCIUM ION × 3 4PP (2S)-(3'-AMIDINO-3-BIPHENYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6;pH 6.0 Resolution 2.40 Å R-free 0.294
4 Protein homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 85–179 Chain B; UniProt 85–179 Chain C; UniProt 235–469 Chain D; UniProt 235–469 Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN Non-standard monomer:Yes (specific site not provided by mmCIF) Fragment:PROTEOLYTIC CLEAVAGE PRODUCT, GLA DOMAIN CA CALCIUM ION × 3 4PP (2S)-(3'-AMIDINO-3-BIPHENYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6;pH 6.0 Resolution 2.40 Å R-free 0.294

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.

183 other PDB entries and 217 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name FA10_HUMAN
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 1–95; UniProt 85–179 Author chain B; PDBConstruct 1–95; UniProt 85–179 Author chain C; PDBConstruct 1–235; UniProt 235–469 Author chain D; PDBConstruct 1–235; UniProt 235–469

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 1xkb

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1xkb
Deposition date deposition_date1998-03-19
Structure title titleFACTOR XA COMPLEXED WITH A SYNTHETIC INHIBITOR FX-2212A,(2S)-(3'-AMIDINO-3-BIPHENYLYL)-5-(4-PYRIDYLAMINO)PENTANOIC ACID
Keywords keywordsBLOOD COAGULATION FACTOR, SERINE PROTEINASE, EPIDERMAL GROWTH FACTOR LIKE DOMAIN; BLOOD COAGULATION FACTOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier32.38
Radius of gyration Rg (electron density) rg_electron31.96
Forward intensity I(0) i094484500.00
Molecular weight molecular_weight73556.0 kDa
Excluded volume excluded_volume90631 ų
Envelope volume envelope_volume123200 ų
Hydration-shell volume shell_volume33510 ų
Envelope diameter envelope_diameter125.3
Shell Rg shell_rg36.78
Envelope Rg envelope_rg33.10
Shape Rg shape_rg31.87
Total Rg total_rg32.63
Total atoms total_atoms5134
Residues n_residues634
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 dmax116.0
Rg (real space) rg_real32.62
Rg uncertainty (real space) rg_real_error1.18
I(0) (real space) i0_real9.4480e+07
I(0) uncertainty (real space) i0_real_error1.5230e+06
Rg (reciprocal space) rg_reciprocal32.53
I(0) (reciprocal space) i0_reciprocal94480000.0000
Solution quality estimate total_estimate0.8296
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.8
Skewness Skewness skewness0.456
Kurtosis Kurtosis kurtosis-0.337
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha10950000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.719; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.754; Smooth: 0.869

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd1xkba1
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd1xkba2
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd1xkbb1
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd1xkbb2
Class classg — Small proteins
Fold Fold foldg.3 — Knottins (small inhibitors, toxins, lectins)
Superfamily Superfamily superfamilyg.3.11 — EGF/Laminin
Family Family familyg.3.11.1 — EGF-type module
Domain ID domain_idd1xkbc_
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_idd1xkbd_
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

CATH v4.4 (8 domains)

Domain ID domain_id1xkbA01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id1xkbA02
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id1xkbB01
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id1xkbB02
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin
Domain ID domain_id1xkbC01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1xkbC02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1xkbD01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1xkbD02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (3)

9. Files and Curves (10)