Macromolecule Content

Total Structure Weight: 33.76 kDa
Atom Count: 2,792
Modelled Residue Count: 288
Deposited Residue Count: 296
Unique protein chains: 2

2JKH

Factor Xa - cation inhibitor complex

PDB DOI: 10.2210/pdb2JKH/pdb

Classification: HYDROLASE
Organism(s): Homo sapiens
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2008-08-28 Released: 2009-01-13
Deposition Author(s): Salonen, L.M., Bucher, C., Banner, D.W., Benz, J., Haap, W., Mary, J.L., Schweizer, W.B., Seiler, P., Kuster, O., Diederich, F.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.25 Å
R-Value Free: 0.221
R-Value Work: 0.195
R-Value Observed: 0.196

wwPDB Validation 3D Report Full Report

Ligand Structure Quality Assessment

This is version 2.0 of the entry. See complete history.

Literature

Cation-Pi Interactions at the Active Site of Factor Xa: Dramatic Enhancement Upon Stepwise N-Alkylation of Ammonium Ions.

Salonen, L.M., Bucher, C., Banner, D.W., Haap, W., Mary, J.L., Benz, J., Kuster, O., Seiler, P., Schweizer, W.B., Diederich, F.

(2009) Angew Chem Int Ed Engl 48: 811

PubMed: 19101972 Search on PubMed
DOI: 10.1002/anie.200804695
Primary Citation of Related Structures:
2JKH

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACTIVATED FACTOR XA HEAVY CHAIN	A	241	Homo sapiens	Mutation(s): 1 Gene Names: F10 EC: 3.4.21.6
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens) Explore P00742 Go to UniProtKB: P00742
PHAROS: P00742
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00742
Protein Feature View Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FACTOR X LIGHT CHAIN	B [auth L]	55	Homo sapiens	Mutation(s): 0 Gene Names: F10 EC: 3.4.21.6
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens) Explore P00742 Go to UniProtKB: P00742
PHAROS: P00742
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P00742
Protein Feature View Expand
Reference Sequence

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
BI7 Query on BI7 Download Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A]	C [auth A]	3-[(3~{a}~{S},4~{R},8~{a}~{S},8~{b}~{R})-4-[5-(5-chloranylthiophen-2-yl)-1,2-oxazol-3-yl]-1,3-bis(oxidanylidene)-4,6,7,8,8~{a},8~{b}-hexahydro-3~{a}~{H}-pyrrolo[3,4-a]pyrrolizin-2-yl]propyl-trimethyl-azanium C₂₂ H₂₈ Cl N₄ O₃ S IMQAZTOPHVBANA-DSYPUSFNSA-N		Ligand Interaction
CA Query on CA Download Ideal Coordinates CCD File SDF format, chain D [auth A] MOL2 format, chain D [auth A]	D [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Ligand Interaction
NA Query on NA Download Ideal Coordinates CCD File SDF format, chain E [auth A] MOL2 format, chain E [auth A]	E [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N		Ligand Interaction

Binding Affinity Annotations
ID	Source	Binding Affinity
BI7	PDBBind: 2JKH	Ki: 9 (nM) from 1 assay(s)
BI7	Binding MOAD: 2JKH	Ki: 9 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.25 Å
R-Value Free: 0.221
R-Value Work: 0.195
R-Value Observed: 0.196
Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.91	α = 90
b = 74.12	β = 90
c = 77.18	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
SADABS	data scaling
MOLREP	phasing

Structure Validation

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Ligand Structure Quality Assessment

Entry History

Deposition Data

Released Date: 2009-01-13

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2009-01-13
Type: Initial release
Version 1.1: 2011-05-07
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 2.0: 2019-10-30
Changes: Data collection, Derived calculations, Non-polymer description, Other, Structure summary