2ZIQ

Thrombin Inhibition

PDB DOI: https://doi.org/10.2210/pdb2ZIQ/pdb

Classification: Hydrolase/Hydrolase Inhibitor
Organism(s): Homo sapiens, Hirudo medicinalis
Mutation(s): No

Deposited: 2008-02-20 Released: 2009-01-13
Deposition Author(s): Baum, B., Heine, A., Klebe, G.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.65 Å
R-Value Free: 0.225
R-Value Work: 0.181
R-Value Observed: 0.187

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 1.7 of the entry. See complete history.

Literature

Understanding Thrombin Inhibition

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

To be published.

Macromolecule Content

Total Structure Weight: 35.81 kDa
Atom Count: 2,557
Modelled Residue Count: 289
Deposited Residue Count: 306
Unique protein chains: 3

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thrombin light chain	A [auth L]	36	Homo sapiens	Mutation(s): 0 EC: 3.4.21.5
UniProt & NIH Common Fund Data Resources
Find proteins for P00734 (Homo sapiens) Explore P00734 Go to UniProtKB: P00734
PHAROS: P00734 GTEx: ENSG00000180210
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00734
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Thrombin heavy chain	B [auth H]	259	Homo sapiens	Mutation(s): 0 EC: 3.4.21.5
UniProt & NIH Common Fund Data Resources
Find proteins for P00734 (Homo sapiens) Explore P00734 Go to UniProtKB: P00734
PHAROS: P00734 GTEx: ENSG00000180210
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00734
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Hirudin variant-1	C [auth I]	11	Hirudo medicinalis	Mutation(s): 0
UniProt
Find proteins for P01050 (Hirudo medicinalis) Explore P01050 Go to UniProtKB: P01050
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P01050
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
26U Query on 26U Download Ideal Coordinates CCD File SDF format, chain D [auth H] MOL2 format, chain D [auth H] mmCIF format, chain D [auth H]	D [auth H]	N-(4-carbamimidoylbenzyl)-1-(4-methylpentanoyl)-L-prolinamide C₁₉ H₂₈ N₄ O₂ AEKJCSNKYXWOAQ-INIZCTEOSA-N		Interactions Focus chain D [auth H]
BEN Query on BEN Download Ideal Coordinates CCD File SDF format, chain G [auth H] MOL2 format, chain G [auth H] mmCIF format, chain G [auth H]	G [auth H]	BENZAMIDINE C₇ H₈ N₂ PXXJHWLDUBFPOL-UHFFFAOYSA-N		Interactions Focus chain G [auth H]
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain E [auth H] SDF format, chain F [auth H] MOL2 format, chain E [auth H] MOL2 format, chain F [auth H] mmCIF format, chain E [auth H] mmCIF format, chain F [auth H]	E [auth H], F [auth H]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Interactions Focus chain E [auth H] Focus chain F [auth H]

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

Binding Affinity Annotations
ID	Source	Binding Affinity
26U	BindingDB: 2ZIQ	Ki: 1000 (nM) from 1 assay(s)

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 4
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_000596 (26U) Query on PRD_000596	D [auth H]	N-(4-carbamimidoylbenzyl)-1-(4-methylpentanoyl)-L-prolinamide	Peptide-like / Thrombin inhibitor		Interactions Focus chain D [auth H]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.65 Å
R-Value Free: 0.225
R-Value Work: 0.181
R-Value Observed: 0.187
Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 70.2	α = 90
b = 71.6	β = 100.3
c = 72.3	γ = 90

Software Package:

Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
MAR345	data collection
HKL-2000	data reduction
HKL-3000	data scaling
CNS	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2009-01-13

Deposition Author(s):

Baum, B.

Heine, A.

Klebe, G.

Revision History (Full details and data files)

Version 1.0: 2009-01-13
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
Version 1.4: 2017-10-11
Changes: Refinement description
Version 1.5: 2023-11-01
Changes: Data collection, Database references, Derived calculations, Refinement description
Version 1.6: 2023-11-15
Changes: Data collection
Version 1.7: 2024-10-30
Changes: Structure summary