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: 34.12 kDa 
• Atom Count: 2,374 
• Modelled Residue Count: 274 
• Deposited Residue Count: 293 
• Unique protein chains: 1

 4MBI

Discovery of Pyrazolo[1,5a]pyrimidine-based Pim1 Inhibitors

• PDB DOI: 10.2210/pdb4MBI/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-08-19 Released: 2013-09-18 
• Deposition Author(s): Azevedo, R., Fischmann, T.O.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.246 
• R-Value Work: 0.211 
• R-Value Observed: 0.215 

Literature

Discovery of pyrazolo[1,5-a]pyrimidine-based Pim inhibitors: A template-based approach.

Dwyer, M.P., Keertikar, K., Paruch, K., Alvarez, C., Labroli, M., Poker, C., Fischmann, T.O., Mayer-Ezell, R., Bond, R., Wang, Y., Azevedo, R., Guzi, T.J.

(2013) Bioorg Med Chem Lett 23: 6178-6182

• PubMed: 24091081 
• DOI: 10.1016/j.bmcl.2013.08.110
• Primary Citation of Related Structures:  
  4MBI, 4MBL


• PubMed Abstract: 
  

The synthesis and hit-to-lead SAR development from a pyrazolo[1,5-a]pyrimidine-derived hit 5 to the identification of a series of potent, pan-Pim inhibitors such as 11j are described.

---

Organizational Affiliation: 

Department of Chemical Research, Merck Research Laboratories, 2015 Galloping Hill Road, Kenilworth, NJ 07033, United States. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase pim-1	A	293	Homo sapiens	Mutation(s): 0  Gene Names: PIM1 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for P11309 (Homo sapiens) Explore P11309  Go to UniProtKB:  P11309
PHAROS:  P11309

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
26K	B [auth A]	N,N-dimethyl-N'-[3-(1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidin-5-yl]ethane-1,2-diamine C13 H17 N7 PSIMDRXAPBUVNE-UHFFFAOYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
26K	BindingDB:  4MBI	IC50: 7 (nM) from 1 assay(s)
	PDBBind:  4MBI	IC50: 7 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.246 
• R-Value Work: 0.211 
• R-Value Observed: 0.215 
• Space Group: P 6₅

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 97.877	α = 90
b = 97.877	β = 90
c = 80.625	γ = 120

Software Package:

Software Name	Purpose
CrystalClear	data collection
AMoRE	phasing
REFMAC	refinement
d*TREK	data reduction
d*TREK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-09-18 
Deposition Author(s): Azevedo, R., Fischmann, T.O.

Revision History  

• Version 1.0: 2013-09-18
  Type: Initial release
  
• Version 1.1: 2013-10-30
  Changes: Database references