8BXH

Crystal structure of JAK2 JH1 in complex with momelotinib

• PDB DOI: https://doi.org/10.2210/pdb8BXH/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Trichoplusia ni
• Mutation(s): No 


• Deposited: 2022-12-08 Released: 2023-12-20 
• Deposition Author(s): Haikarainen, T.
• Funding Organization(s): Academy of Finland

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.168 
• R-Value Work: 0.145 
• R-Value Observed: 0.146 

Literature

Structural basis for JAK2 inhibition by clinical stage inhibitors

Miao, Y., Silvennoinen, O., Haikarainen, T.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 37.78 kDa 
• Atom Count: 2,880 
• Modelled Residue Count: 300 
• Deposited Residue Count: 316 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Tyrosine-protein kinase JAK2	A	316	Homo sapiens	Mutation(s): 0  Gene Names: JAK2 EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for O60674 (Homo sapiens) Explore O60674  Go to UniProtKB:  O60674
PHAROS:  O60674 GTEx:  ENSG00000096968

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
C87	B [auth A]	Momelotinib C23 H22 N6 O2 ZVHNDZWQTBEVRY-UHFFFAOYSA-N
MLI	C [auth A]	MALONATE ION C3 H2 O4 OFOBLEOULBTSOW-UHFFFAOYSA-L

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
PTR	A	L-PEPTIDE LINKING	C9 H12 N O6 P		TYR

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.168 
• R-Value Work: 0.145 
• R-Value Observed: 0.146 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 107.36	α = 90
b = 68.926	β = 99.51
c = 49.936	γ = 90

Software Package:

Software Name	Purpose
GDA	data collection
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-20 
Deposition Author(s): Haikarainen, T.

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Funding Organization	Location	Grant Number
Academy of Finland	Finland	--

Revision History  

• Version 1.0: 2023-12-20
  Type: Initial release