6C2G

Human triosephosphate isomerase mutant V231M


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Differential effects on enzyme stability and kinetic parameters of mutants related to human triosephosphate isomerase deficiency.

Cabrera, N.Torres-Larios, A.Garcia-Torres, I.Enriquez-Flores, S.Perez-Montfort, R.

(2018) Biochim. Biophys. Acta 1862: 1401-1409

  • DOI: 10.1016/j.bbagen.2018.03.019

  • PubMed Abstract: 
  • Human triosephosphate isomerase (TIM) deficiency is a very rare disease, but there are several mutations reported to be causing the illness. In this work, we produced nine recombinant human triosephosphate isomerases which have the mutations reported ...

    Human triosephosphate isomerase (TIM) deficiency is a very rare disease, but there are several mutations reported to be causing the illness. In this work, we produced nine recombinant human triosephosphate isomerases which have the mutations reported to produce TIM deficiency. These enzymes were characterized biophysically and biochemically to determine their kinetic and stability parameters, and also to substitute TIM activity in supporting the growth of an Escherichia coli strain lacking the tim gene. Our results allowed us to rate the deleteriousness of the human TIM mutants based on the type and severity of the alterations observed, to classify four "unknown severity mutants" with altered residues in positions 62, 72, 122 and 154 and to explain in structural terms the mutation V231M, the most affected mutant from the kinetic point of view and the only homozygous mutation reported besides E104D.


    Organizational Affiliation

    Departamento de Bioquímica y Biología Estructural, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Av. Universidad 3000, Coyoacán, 04510, Ciudad de México, Mexico.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Triosephosphate isomerase
A, B, C, D
249Homo sapiensMutation(s): 1 
Gene Names: TPI1 (TPI)
EC: 5.3.1.1
Find proteins for P60174 (Homo sapiens)
Go to Gene View: TPI1
Go to UniProtKB:  P60174
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.215 
  • Space Group: P 2 21 21
Unit Cell:
Length (Å)Angle (°)
a = 48.073α = 90.00
b = 63.452β = 90.00
c = 334.622γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
REFMACrefinement
SCALAdata scaling
iMOSFLMdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-03-21
    Type: Initial release
  • Version 1.1: 2018-04-04
    Type: Data collection, Database references
  • Version 1.2: 2018-04-11
    Type: Data collection, Database references