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- PDB-1hxf: HUMAN THROMBIN COMPLEX WITH HIRUDIN VARIANT -

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Basic information

Entry
Database: PDB / ID: 1hxf
TitleHUMAN THROMBIN COMPLEX WITH HIRUDIN VARIANT
Components
  • (THROMBIN) x 2
  • HIRUDIN VARIANT
KeywordsHYDROLASE/HYDROLASE INHIBITOR / COMPLEX (SERINE PROTEASE INHIBITOR) / SULFATATION / MULTIGENE FAMILY / BLOOD COAGULATION / PLASMA / CALCIUM-BINDING / GLYCOPROTEIN / DUPLICATION / HYDROLASE-HYDROLASE INHIBITOR COMPLEX
Function / homology
Function and homology information


negative regulation of serine-type peptidase activity / positive regulation of lipid kinase activity / positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway / cytolysis by host of symbiont cells / thrombospondin receptor activity / Defective factor XII causes hereditary angioedema / thrombin / neutrophil-mediated killing of gram-negative bacterium / regulation of blood coagulation / ligand-gated ion channel signaling pathway ...negative regulation of serine-type peptidase activity / positive regulation of lipid kinase activity / positive regulation of phospholipase C-activating G protein-coupled receptor signaling pathway / cytolysis by host of symbiont cells / thrombospondin receptor activity / Defective factor XII causes hereditary angioedema / thrombin / neutrophil-mediated killing of gram-negative bacterium / regulation of blood coagulation / ligand-gated ion channel signaling pathway / Defective F8 cleavage by thrombin / Platelet Aggregation (Plug Formation) / negative regulation of platelet activation / negative regulation of astrocyte differentiation / positive regulation of collagen biosynthetic process / negative regulation of cytokine production involved in inflammatory response / positive regulation of blood coagulation / negative regulation of fibrinolysis / Gamma-carboxylation of protein precursors / Transport of gamma-carboxylated protein precursors from the endoplasmic reticulum to the Golgi apparatus / Common Pathway of Fibrin Clot Formation / Removal of aminoterminal propeptides from gamma-carboxylated proteins / fibrinolysis / regulation of cytosolic calcium ion concentration / Intrinsic Pathway of Fibrin Clot Formation / Peptide ligand-binding receptors / positive regulation of release of sequestered calcium ion into cytosol / Regulation of Complement cascade / acute-phase response / Cell surface interactions at the vascular wall / lipopolysaccharide binding / negative regulation of proteolysis / positive regulation of receptor signaling pathway via JAK-STAT / growth factor activity / serine-type endopeptidase inhibitor activity / positive regulation of insulin secretion / platelet activation / response to wounding / Golgi lumen / positive regulation of protein localization to nucleus / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / positive regulation of reactive oxygen species metabolic process / blood coagulation / antimicrobial humoral immune response mediated by antimicrobial peptide / Thrombin signalling through proteinase activated receptors (PARs) / heparin binding / regulation of cell shape / positive regulation of cell growth / G alpha (q) signalling events / collagen-containing extracellular matrix / blood microparticle / cell surface receptor signaling pathway / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / endoplasmic reticulum lumen / signaling receptor binding / serine-type endopeptidase activity / calcium ion binding / positive regulation of cell population proliferation / proteolysis / extracellular space / extracellular exosome / extracellular region / plasma membrane
Similarity search - Function
Thrombin inhibitor hirudin / Hirudin / Proteinase inhibitor I14, hirudin / Hirudin/antistatin / Prothrombin/thrombin / Thrombin light chain / Thrombin light chain domain superfamily / Thrombin light chain / Kringle domain / Kringle ...Thrombin inhibitor hirudin / Hirudin / Proteinase inhibitor I14, hirudin / Hirudin/antistatin / Prothrombin/thrombin / Thrombin light chain / Thrombin light chain domain superfamily / Thrombin light chain / Kringle domain / Kringle / Kringle, conserved site / Kringle superfamily / Kringle domain signature. / Kringle domain profile. / Kringle domain / Vitamin K-dependent carboxylation/gamma-carboxyglutamic (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain / Gamma-carboxyglutamic acid-rich (GLA) domain superfamily / Vitamin K-dependent carboxylation domain. / Gla domain profile. / Domain containing Gla (gamma-carboxyglutamate) residues. / Kringle-like fold / Serine proteases, trypsin family, histidine active site / Serine proteases, trypsin family, serine active site / Peptidase S1A, chymotrypsin family / Serine proteases, trypsin family, histidine active site. / Serine proteases, trypsin domain profile. / Serine proteases, trypsin family, serine active site. / Trypsin-like serine protease / Serine proteases, trypsin domain / Trypsin / Trypsin-like serine proteases / Thrombin, subunit H / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Prothrombin / Hirudin variant-1
Similarity search - Component
Biological speciesHirudo medicinalis (medicinal leech)
Homo sapiens (human)
MethodX-RAY DIFFRACTION / Resolution: 2.1 Å
AuthorsTulinsky, A. / Zhang, E.
Citation
Journal: Biophys.Chem. / Year: 1997
Title: The molecular environment of the Na+ binding site of thrombin.
Authors: Zhang, E. / Tulinsky, A.
#1: Journal: J.Biol.Chem. / Year: 1995
Title: The Na+ Binding Site of Thrombin
Authors: Di Cera, E. / Guinto, E.R. / Vindigni, A. / Dang, Q.D. / Ayala, Y.M. / Wuyi, M. / Tulinsky, A.
#2: Journal: Protein Sci. / Year: 1994
Title: The Isomorphous Structures of Prethrombin2, Hirugen-, and Ppack-Thrombin: Changes Accompanying Activation and Exosite Binding to Thrombin
Authors: Vijayalakshmi, J. / Padmanabhan, K.P. / Mann, K.G. / Tulinsky, A.
#3: Journal: J.Mol.Biol. / Year: 1991
Title: Refined Structure of the Hirudin-Thrombin Complex
Authors: Rydel, T.J. / Tulinsky, A. / Bode, W. / Huber, R.
History
DepositionSep 9, 1996-
Revision 1.0Jan 27, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Atomic model / Database references ...Atomic model / Database references / Derived calculations / Non-polymer description / Structure summary / Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
L: THROMBIN
H: THROMBIN
I: HIRUDIN VARIANT


Theoretical massNumber of molelcules
Total (without water)35,0883
Polymers35,0883
Non-polymers00
Water2,486138
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3230 Å2
ΔGint-18 kcal/mol
Surface area12750 Å2
MethodPISA
Unit cell
Length a, b, c (Å)70.660, 72.470, 73.090
Angle α, β, γ (deg.)90.00, 100.75, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11H-473-

HOH

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Components

#1: Protein/peptide THROMBIN / / FACTOR IIA


Mass: 4096.534 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Organ: BLOOD / Tissue: BLOOD / References: UniProt: P00734, thrombin
#2: Protein THROMBIN / / FACTOR IIA


Mass: 29780.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Organ: BLOOD / Tissue: BLOOD / References: UniProt: P00734, thrombin
#3: Protein/peptide HIRUDIN VARIANT


Mass: 1211.274 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Hirudo medicinalis (medicinal leech) / References: UniProt: P01050
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 138 / Source method: isolated from a natural source / Formula: H2O
Compound detailsTHROMBIN IS CLEAVED BETWEEN RESIDUES 15 AND 16. CHAIN INDICATOR *L* IS USED FOR RESIDUES 1A - 14K ...THROMBIN IS CLEAVED BETWEEN RESIDUES 15 AND 16. CHAIN INDICATOR *L* IS USED FOR RESIDUES 1A - 14K AND CHAIN INDICATOR *H* IS USED FOR RESIDUES 16 - 244. CHAIN INDICATOR *I* IS USED FOR HIRUDIN 55 -64. RESIDUES 1 - 7 AND 34 - 36 OF CHAIN L ARE NOT IN ATOM LIST. THE LAST THREE C-TERMINAL RESIDUES ARE NOT IN ATOM LIST.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.62 Å3/Da / Density % sol: 49 %
Crystal grow
*PLUS
pH: 8.5 / Method: vapor diffusion
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
10.1 MTris1reservoir
228 %PEG40001reservoir
30.2 Msodium acetate1reservoir
40.19 M1reservoirNaCl

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Data collection

Diffraction sourceWavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: Feb 20, 1996
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionNum. obs: 15885 / % possible obs: 70 % / Observed criterion σ(I): 1 / Redundancy: 2 % / Rmerge(I) obs: 0.048
Reflection
*PLUS
Highest resolution: 2.3 Å / Num. obs: 14047 / % possible obs: 91 % / Num. measured all: 44309

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Processing

Software
NameClassification
XENGENdata collection
PROLSQrefinement
XENGENdata reduction
RefinementResolution: 2.1→7 Å / σ(F): 3 /
RfactorNum. reflection
obs0.151 13281
Displacement parametersBiso mean: 31 Å2
Refine analyzeLuzzati coordinate error obs: 0.2 Å
Refinement stepCycle: LAST / Resolution: 2.1→7 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2309 0 0 138 2447
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.0140.018
X-RAY DIFFRACTIONp_angle_d0.0490.038
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d0.0610.058
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it1.72
X-RAY DIFFRACTIONp_mcangle_it2.52.5
X-RAY DIFFRACTIONp_scbond_it33
X-RAY DIFFRACTIONp_scangle_it43.5
X-RAY DIFFRACTIONp_plane_restr0.0330.04
X-RAY DIFFRACTIONp_chiral_restr0.1810.15
X-RAY DIFFRACTIONp_singtor_nbd0.230.5
X-RAY DIFFRACTIONp_multtor_nbd0.30.5
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd0.260.5
X-RAY DIFFRACTIONp_planar_tor43
X-RAY DIFFRACTIONp_staggered_tor22.915
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor2920
X-RAY DIFFRACTIONp_special_tor
Software
*PLUS
Name: PROLSQ / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.3 Å
Solvent computation
*PLUS
Displacement parameters
*PLUS

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