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Protein Analysis Using Two-Dimensional Polyacrylamide Gel Electrophoresis (2D-PAGE)

ITSI – Biosciences also offers SDS PAGE, large format Two Dimensional – Difference in Gel Electrophoresis (2D-DIGE) and 1D/2D Western Blotting services. SDS PAGE can be performed with a mini gel or the Agilent BioAnalyzer and biochip. In each case, an automated software program is used to detect, quantify and annotate the protein bands.

We can also screen for phosphoproteins, by staining the 2D-PAGE gels with a phosphor protein stain. The 1D and 2D Gels can also be blotted by western transfer and screened with antibodies supplied by the client.

We offer the following services:

S/N CAT NO. NAME DESCRIPTION UNIT COST
1 SP1 Sample Preparation 1 Homogenization, protein quantitation using ToPA Bradford protein assay kit. Per sample
2 SP2 Sample Preparation 2 Includes, precipitation, buffer exchange, protein quantitation, etc. and the use of ToPI-DIGE, ToPREP and ToPA kits. Per sample
3 SP3 Sample Preparation 3 Depletion of abundant protein e.g. bovine or human serum albumin using ITSI ASK-Column kit. Per sample
4 SP4 Sample Preparation 4 Depletion of abundant protein e.g. bovine or human serum albumin using ITSI ASK-Solvent kit. Per sample
5 SP5 Sample Preparation 5 Depletion of 14 abundant proteins from serum / plasma using IgY column. Per sample
6 SP9 Sample Preparation 9 Urine protein isolation and concentration. Service includes Isolation, partial purification, and concentration of urine proteins using ITSI Urine Protein Isolation kit. Per sample
7 S10MG 1D SDS-PAGE – Mini Gel

1D gel electrophoresis. The service includes

 

  • Determining Protein Concentration
  • SDS-PAGE,
  • Gel scanning and
  • Image analysis.
 1-8 samples
8 S10BA 1D SDS-PAGE – Bioanalyzer

1D Gel electrophoresis using Agilent Bioanalyzer and Chip. The service includes

 

  • Determining protein concentration
  • SDS-PAGE with the bioanalyzer, and
  • Image analysis.
 1-8 samples
9 S20 2D-PAGE

Classical Two-Dimensional Polyacrylamide Gel Electrophoresis (2D-PAGE). The service includes

 

  • Determining Protein Concentration
  • 1st dimension,
  • 2nd dimension,
  • Staining,
  • De-staining and
  • Scanning.
 1 sample Per Gel
10 S20P 2D-PAGE PhosPho

Phospho protein profiling. The service includes

 

  • Determining Protein Concentration
  • 1st dimension,
  • 2nd dimension,
  • Staining,
  • De-staining,
  • Phosphoprotein staining and
  • Scanning.
 Per gel
11 S101-1D 1D-Western Blotting 1D Western analysis using client supplied antibody Per blot
12 S101-2D 2D-Western Blotting 2D Western analysis using client supplied antibody Per blot
13 SP7 Sample preparation 7

Manual In-gel digestion. Digestion of proteins in a gel band/spot using trypsin. The service includes

 

  • Gel de-staining – coomassie or silver stain
  • Alkylation and reduction
  • Trypsin digestion
  • Peptide extraction from the gels for mass spectrometry analysis.
 Per sample
14 SP10 Sample preparation 10 Zip tip cleanup of in-gel or in-solution digested samples…. Per sample
15 S50.60 LC60-MS/MS

Peptide sequencing and protein identification by liquid chromatography – tandem mass spectrometry of pure protein samples. Services include

 

  • Tandem mass spectrometry analysis using nano-LC/MS/MS,
  • Database search and
  • Identified protein annotation – 60 min run.
 Per sample
16 DBS-PID Database Search – Protein Identification

Database search for protein identification. The service includes

 

  • Downloading the most recent database files from NCBI or other relevant sources
  • Database search and
  • Identified protein annotation.
 Per sample
17 DBS-PTM Database Search – Protein Identification and PTM Mapping

Database search for protein identification and post translational modification mapping. The service includes

 

  • Downloading the most recent database files from NCBI or other relevant sources
  • Database search and
  • Identified protein annotation.
 Per sample
18 GO Gene Ontology (GO) Annotation Annotation of proteins using GO classification for biological process, molecular function and cellular component. Per sample
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