Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 35.86 kDa 
• Atom Count: 2427 
• Residue Count: 286 
• Unique protein chains: 3

2ZHW

Exploring thrombin S3 pocket

• DOI: 10.2210/pdb2ZHW/pdb

• Classification: HYDROLASE/HYDROLASE INHIBITOR
• Organism(s): Homo sapiens, Hirudo medicinalis
• Mutation(s): No 


• Deposited: 2008-02-08 Released: 2009-02-10 
• Deposition Author(s): Brandt, T., Baum, B., Heine, A., Klebe, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.02 Å
• R-Value Free: 0.292 
• R-Value Work: 0.188 
• R-Value Observed: 0.202 

Literature

Exploring thrombin S3 pocket

Brandt, T., Baum, B., Hangauer, D., Heine, A., Klebe, G.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thrombin light chain	L	36	Homo sapiens	Mutation(s): 0  Gene Names: F2 EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens) Explore P00734  Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734 GTEx:  ENSG00000180210

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Thrombin heavy chain	H	259	Homo sapiens	Mutation(s): 0  Gene Names: F2 EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens) Explore P00734  Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734 GTEx:  ENSG00000180210

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Hirudin variant-2	I	12	Hirudo medicinalis	Mutation(s): 0
Find proteins for P09945 (Hirudo medicinalis) Explore P09945  Go to UniProtKB:  P09945

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
12U	H	N-cycloheptylglycyl-N-(4-carbamimidoylbenzyl)-L-prolinamide C22 H33 N5 O2 BYTJPDBCLWUEBU-IBGZPJMESA-N
NA	H	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
TYS	I	L-PEPTIDE LINKING	C9 H11 N O6 S		TYR

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 5
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_000588 (12U)	H	N-cycloheptylglycyl-N-(4-carbamimidoylbenzyl)-L-prolinamide	Peptide-like /  Thrombin inhibitor		--

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.02 Å
• R-Value Free: 0.292 
• R-Value Work: 0.188 
• R-Value Observed: 0.202 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.9	α = 90
b = 71.5	β = 99.1
c = 71.3	γ = 90

Software Package:

Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
CrystalClear	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2008-02-08 
• Released Date: 2009-02-10 
Deposition Author(s): Brandt, T., Baum, B., Heine, A., Klebe, G.

Revision History 

• Version 1.0: 2009-02-10
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
• Version 1.2: 2012-12-12
  Changes: Other
• Version 1.3: 2016-05-25
  Changes: Source and taxonomy