3NCE

A mutant human Prolactin receptor antagonist H27A in complex with the mutant extracellular domain H188A of the human prolactin receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Two Independent Histidines, One in Human Prolactin and One in Its Receptor, Are Critical for pH-dependent Receptor Recognition and Activation.

Kulkarni, M.V.Tettamanzi, M.C.Murphy, J.W.Keeler, C.Myszka, D.G.Chayen, N.E.Lolis, E.J.Hodsdon, M.E.

(2010) J Biol Chem 285: 38524-38533

  • DOI: 10.1074/jbc.M110.172072
  • Primary Citation of Related Structures:  
    3MZG, 3NCB, 3NCC, 3NCE, 3NCF, 3N0P, 3N06

  • PubMed Abstract: 
  • Human prolactin (hPRL), a member of the family of hematopoietic cytokines, functions as both an endocrine hormone and autocrine/paracrine growth factor. We have previously demonstrated that recognition of the hPRL·receptor depends strongly on solutio ...

    Human prolactin (hPRL), a member of the family of hematopoietic cytokines, functions as both an endocrine hormone and autocrine/paracrine growth factor. We have previously demonstrated that recognition of the hPRL·receptor depends strongly on solution acidity over the physiologic range from pH 6 to pH 8. The hPRL·receptor binding interface contains four histidines whose protonation is hypothesized to regulate pH-dependent receptor recognition. Here, we systematically dissect its molecular origin by characterizing the consequences of His to Ala mutations on pH-dependent receptor binding kinetics, site-specific histidine protonation, and high resolution structures of the intermolecular interface. Thermodynamic modeling of the pH dependence to receptor binding affinity reveals large changes in site-specific protonation constants for a majority of interface histidines upon complexation. Removal of individual His imidazoles reduces these perturbations in protonation constants, which is most likely explained by the introduction of solvent-filled, buried cavities in the crystallographic structures without inducing significant conformational rearrangements.


    Organizational Affiliation

    Department of Laboratory Medicine, Yale School of Medicine, New Haven, Connecticut 06520, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ProlactinA186Homo sapiensMutation(s): 2 
Gene Names: hPRLPRL
Find proteins for P01236 (Homo sapiens)
Explore P01236 
Go to UniProtKB:  P01236
NIH Common Fund Data Resources
PHAROS  P01236
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Prolactin receptorB210Homo sapiensMutation(s): 1 
Gene Names: hPRLrPRLR
Find proteins for P16471 (Homo sapiens)
Explore P16471 
Go to UniProtKB:  P16471
NIH Common Fund Data Resources
PHAROS  P16471
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CO3
Query on CO3

Download CCD File 
A
CARBONATE ION
C O3
BVKZGUZCCUSVTD-UHFFFAOYSA-L
 Ligand Interaction
CL
Query on CL

Download CCD File 
B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
NA
Query on NA

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A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.179 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 123.283α = 90
b = 123.283β = 90
c = 72.489γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description