1sr5

ANTITHROMBIN-ANHYDROTHROMBIN-HEPARIN TERNARY COMPLEX STRUCTURE

Method: X-RAY DIFFRACTION Dmax: 113.0 Å Quality: GOOD

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

Antithrombin-III

OrganismNot specified

UniProt P01008

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 1 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 33–464 Not recorded Prothrombin × 1 (P00734) Prothrombin × 1 (P00734) ;4-deoxy-2,3,6-tri-O-methyl-alpha-D-xylo-hexopyranose-(1-4)-2,3,6-tri-O-methyl-beta-D-glucopyranose-(1-4)-2,3-di-O-methyl-6-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6S)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-2,3,6-tri-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6R)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-1,5-anhydro-3-O-methyl-2,6-di-O-sulfo-D-glucitol ; × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 GU4 2,3,4,6-tetra-O-sulfonato-alpha-D-glucopyranose × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.4;291 K;PEG 3350, tri-sodium citrate, pH 8.40, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K Resolution 3.10 Å R-free 0.278

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.

26 other PDB entries and 43 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ANT3_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–432; UniProt 33–464

Prothrombin

OrganismNot specified

UniProt P00734

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 1 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 328–363 Chain C; UniProt 364–622 Fragment:light chain (residues 328-363) Fragment:heavy chain (residues 364-622) Antithrombin-III × 1 (P01008) ;4-deoxy-2,3,6-tri-O-methyl-alpha-D-xylo-hexopyranose-(1-4)-2,3,6-tri-O-methyl-beta-D-glucopyranose-(1-4)-2,3-di-O-methyl-6-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6S)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-2,3,6-tri-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6R)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-1,5-anhydro-3-O-methyl-2,6-di-O-sulfo-D-glucitol ; × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 GU4 2,3,4,6-tetra-O-sulfonato-alpha-D-glucopyranose × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.4;291 K;PEG 3350, tri-sodium citrate, pH 8.40, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K Resolution 3.10 Å R-free 0.278

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.

475 other PDB entries and 564 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name THRB_HUMAN
Isoform
PDB entities 2, 3
Chains and sequence ranges Author chain B; PDBConstruct 1–36; UniProt 328–363 Author chain C; PDBConstruct 1–259; UniProt 364–622

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 1sr5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1sr5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1sr5
Deposition date deposition_date2004-03-22
Structure title titleANTITHROMBIN-ANHYDROTHROMBIN-HEPARIN TERNARY COMPLEX STRUCTURE
Keywords keywords;SERINE PROTEINASE INHIBITOR, ANTITHROMBIN ACTIVATION BY HEP ANHYDROTHROMBIN, PROTEIN-PROTEIN INTERACTIONS, HYDROLASE-HYDROLASE INHIBITOR COMPLEX ;; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier33.24
Radius of gyration Rg (electron density) rg_electron33.20
Forward intensity I(0) i095037000.00
Molecular weight molecular_weight77722.0 kDa
Excluded volume excluded_volume97116 ų
Envelope volume envelope_volume119260 ų
Hydration-shell volume shell_volume32051 ų
Envelope diameter envelope_diameter114.0
Shell Rg shell_rg37.36
Envelope Rg envelope_rg33.00
Shape Rg shape_rg33.19
Total Rg total_rg33.55
Total atoms total_atoms5459
Residues n_residues648
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 dmax113.0
Rg (real space) rg_real33.65
Rg uncertainty (real space) rg_real_error1.11
I(0) (real space) i0_real9.5040e+07
I(0) uncertainty (real space) i0_real_error1.7050e+06
Rg (reciprocal space) rg_reciprocal33.48
I(0) (reciprocal space) i0_reciprocal95020000.0000
Solution quality estimate total_estimate0.7978
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary28.2
Skewness Skewness skewness0.500
Kurtosis Kurtosis kurtosis-0.570
Angular range angular_range— – 0.2400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41680000.0000
Real-space data points n_real_points49
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.629; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.617; Smooth: 0.865

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1sr5.1
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_idd1sr5a_
Class classe — Multi-domain proteins (alpha and beta)
Fold Fold folde.1 — Serpins
Superfamily Superfamily superfamilye.1.1 — Serpins
Family Family familye.1.1.1 — Serpins

CATH v4.4 (4 domains)

Domain ID domain_id1sr5A01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology39 — Alpha-1-antitrypsin; domain 1
Homologous superfamily homologous superfamily10 — Alpha-1-antitrypsin, domain 1
Domain ID domain_id1sr5A02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology497 — Antithrombin; Chain I, domain 2
Homologous superfamily homologous superfamily10 — Antithrombin, subunit I, domain 2
Domain ID domain_id1sr5C01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1sr5C02
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)