5KAB

Protein Tyrosine Phosphatase 1B Delta helix 7, P185G mutant in complex with TCS401, open state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Conformational Rigidity and Protein Dynamics at Distinct Timescales Regulate PTP1B Activity and Allostery.

Choy, M.S.Li, Y.Machado, L.E.Kunze, M.B.Connors, C.R.Wei, X.Lindorff-Larsen, K.Page, R.Peti, W.

(2017) Mol Cell 65: 644-658.e5

  • DOI: https://doi.org/10.1016/j.molcel.2017.01.014
  • Primary Citation of Related Structures:  
    5K9V, 5K9W, 5KA0, 5KA1, 5KA2, 5KA3, 5KA4, 5KA7, 5KA8, 5KA9, 5KAA, 5KAB, 5KAC, 5KAD

  • PubMed Abstract: 

    Protein function originates from a cooperation of structural rigidity, dynamics at different timescales, and allostery. However, how these three pillars of protein function are integrated is still only poorly understood. Here we show how these pillars are connected in Protein Tyrosine Phosphatase 1B (PTP1B), a drug target for diabetes and cancer that catalyzes the dephosphorylation of numerous substrates in essential signaling pathways. By combining new experimental and computational data on WT-PTP1B and ≥10 PTP1B variants in multiple states, we discovered a fundamental and evolutionarily conserved CH/π switch that is critical for positioning the catalytically important WPD loop. Furthermore, our data show that PTP1B uses conformational and dynamic allostery to regulate its activity. This shows that both conformational rigidity and dynamics are essential for controlling protein activity. This connection between rigidity and dynamics at different timescales is likely a hallmark of all enzyme function.


  • Organizational Affiliation

    Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, RI 02912, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tyrosine-protein phosphatase non-receptor type 1289Homo sapiensMutation(s): 1 
Gene Names: PTPN1PTP1B
EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for P18031 (Homo sapiens)
Explore P18031 
Go to UniProtKB:  P18031
PHAROS:  P18031
GTEx:  ENSG00000196396 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP18031
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
OTA
Query on OTA

Download Ideal Coordinates CCD File 
G [auth A]2-(OXALYL-AMINO)-4,5,6,7-TETRAHYDRO-THIENO[2,3-C]PYRIDINE-3-CARBOXYLIC ACID
C10 H10 N2 O5 S
ZIBMATWHOAGNTR-UHFFFAOYSA-N
TRS
Query on TRS

Download Ideal Coordinates CCD File 
H [auth A]2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
GOL
Query on GOL

Download Ideal Coordinates CCD File 
I [auth A],
J [auth A]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
B [auth A],
C [auth A],
D [auth A],
E [auth A],
F [auth A]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Binding Affinity Annotations 
IDSourceBinding Affinity
OTA BindingDB:  5KAB Ki: min: 230, max: 5.01e+4 (nM) from 6 assay(s)
IC50: 5.00e+5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.180 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.17α = 90
b = 88.17β = 90
c = 71.908γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
PHASERphasing
PDB_EXTRACTdata extraction
HKL-3000data reduction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-08
    Type: Initial release
  • Version 1.1: 2023-09-27
    Changes: Data collection, Database references, Refinement description