1iqg

Human coagulation factor Xa in complex with M55159

Method: X-RAY DIFFRACTION Dmax: 66.4 Å Quality: GOOD

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

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 235–469 Chain L; UniProt 84–179 Fragment:heavy chain, catalytic domain (residues 235-469) Fragment:light chain, epidermal growth factor like domain (residues 84-179) CA CALCIUM ION × 1 XME 4-[(6-CHLORO-2-NAPHTHALENYL)SULFONYL]-1-[[4-HYDROXYIMINOMETHYL-1-(4-PYRIDINYL)-4-PIPERIDINYL]METHYL]PIPERAZINONE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.2;293 K;PEG1500, calcium chloride, M55159, tris-HCl, pH 7.20, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.60 Å R-free 0.271

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 220 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 1–235; UniProt 235–469 Author chain L; PDBConstruct 1–96; UniProt 84–179

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 1iqg

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1iqg
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id1iqg
Deposition date deposition_date2001-07-23
Structure title titleHuman coagulation factor Xa in complex with M55159
Keywords keywordsHYDROLASE, SERINE PROTEASE, BLOOD COAGULATION FACTOR, COMPLEX; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.59
Radius of gyration Rg (electron density) rg_electron18.47
Forward intensity I(0) i019745000.00
Molecular weight molecular_weight32588.0 kDa
Excluded volume excluded_volume40272 ų
Envelope volume envelope_volume45662 ų
Hydration-shell volume shell_volume20361 ų
Envelope diameter envelope_diameter64.3
Shell Rg shell_rg25.22
Envelope Rg envelope_rg18.85
Shape Rg shape_rg18.43
Total Rg total_rg19.47
Total atoms total_atoms2277
Residues n_residues279
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 dmax66.4
Rg (real space) rg_real19.47
Rg uncertainty (real space) rg_real_error0.41
I(0) (real space) i0_real1.9740e+07
I(0) uncertainty (real space) i0_real_error2.5200e+05
Rg (reciprocal space) rg_reciprocal19.49
I(0) (reciprocal space) i0_reciprocal19750000.0000
Solution quality estimate total_estimate0.8720
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.2
Skewness Skewness skewness0.191
Kurtosis Kurtosis kurtosis-0.352
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5672000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.780; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.996

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1iqga_
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_idd1iqgl_
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

CATH v4.4 (3 domains)

Domain ID domain_id1iqgA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1iqgA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1iqgL00
Class class2 — Mainly Beta
Architecture architecture10 — Ribbon
Topology topology25 — Laminin
Homologous superfamily homologous superfamily10 — Laminin

8. Citations (4)

9. Files and Curves (10)