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Protein Chemistry Core Lab

Houston, Texas

Protein Core Lab
Protein Chemistry Core Laboratory
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Services

Protein Sequencing

Instrumentation:

  • ABI 477A and 492 Procise cLC

Capabilities:

  • Sequencing of protein/peptides (soluble or on PVDF)
  • Sub 1 pmole sensitivity
  • Sequencing of radiolabeled proteins (identification of phosphorylation, acetylation sites, etc)

Peptide Synthesis

Instrumentation:

  • ABI 433A synthesizers

Capabilities:

  • 0.1 and 0.25mM scales; RP-HPLC purification available
  • Synthesis of peptides on MAP resin
  • Modified peptides (phosphorylated, cyclized, acetylated, methylated, biotinylated, fluorescent labeled, formylated)

Mass Spec Analysis

Instrumentation:

  • ABI/SCIEX 4000 Q-TRAP LC MS/MS System
  • ABI/SCIEX 4700 MALDI TOF/TOF System

Capabilities:

  • Mass determinations
  • Protein identification by peptide mass fingerprinting
  • MS/MS analysis
  • Peptide sequencing and phosphorylation site identificaiton

Amino Acid Analysis

Instrumentation:

  • ABI 420A Analyzer

Capabilities:

  • Soluble and PVDF immobilized proteins
  • Picomole sensitivity

Enzymatic Digestion of Proteins for Identification

Instrumentation:

  • Pharmacia SMART HPLC system with narrow bore reverse phase column
  • Protein sequencers and mass spectrometers (see above)

Capabilities:

  • Enzymatic digestion of proteins in gel slices
  • Less than 10 pmoles of protein needed
  • Protein identification and post-translational modification determination by Edman degradation or mass spectrometery

MHC Tetramer Production  top