Purification, crystallization and preliminary X-ray diffraction of wild-type and mutant recombinant human transforming growth factor beta-induced protein (TGFBIp)

Acta Crystallogr Sect F Struct Biol Cryst Commun. 2009 Mar 1;65(Pt 3):299-303. doi: 10.1107/S1744309109005016. Epub 2009 Feb 26.

Abstract

Transforming growth factor beta-induced protein (TGFBIp) has been linked to several corneal dystrophies as certain point mutations in the protein may give rise to a progressive accumulation of insoluble protein material in the human cornea. Little is known about the biological functions of this extracellular protein, which is expressed in various tissues throughout the human body. However, it has been found to interact with a number of extracellular matrix macromolecules such as collagens and proteoglycans. Structural information about TGFBIp might prove to be a valuable tool in the elucidation of its function and its role in corneal dystrophies caused by mutations in the TGFBI gene. A simple method for the purification of wild-type and mutant forms of recombinant human TGFBIp from human cells under native conditions is presented here. Moreover, the crystallization and preliminary X-ray analysis of TGFBIp are reported.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromatography, Affinity
  • Crystallization
  • Crystallography, X-Ray
  • Electrophoresis, Polyacrylamide Gel
  • Extracellular Matrix Proteins / chemistry*
  • Extracellular Matrix Proteins / isolation & purification*
  • Humans
  • Mutant Proteins / chemistry*
  • Mutant Proteins / isolation & purification*
  • Mutation / genetics
  • Recombinant Proteins / chemistry*
  • Recombinant Proteins / isolation & purification*
  • Transforming Growth Factor beta / chemistry*
  • Transforming Growth Factor beta / isolation & purification*

Substances

  • Extracellular Matrix Proteins
  • Mutant Proteins
  • Recombinant Proteins
  • Transforming Growth Factor beta
  • betaIG-H3 protein